Plural Concentric Or Single Coiled Electrode Patents (Class 429/94)
  • Patent number: 12381292
    Abstract: Systems and methods are disclosed for battery cells with positive polarity rigid containers. In accordance with disclosed embodiments, the cell may include a container and a lid piece that couple together to form a rectangular prismatic geometry. An electrode assembly having positive and negative coils may be disposed within the cell, and the positive coil may be conductively coupled to the cell. In this way, the cell (e.g., both the lid and the container) may be positively polarized. Further, the electrode assembly may incorporate a jelly-roll or a stacked structure. In one embodiment, the lid piece may include a vent that opens in response to pressure in the cell surpassing an established threshold. The lid may further include a positive terminal, negative terminal, and a method for filling the cell with electrolyte. Another embodiment may provide a battery module include multiple cells with positive polarity rigid containers.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: August 5, 2025
    Assignee: CPS Technology Holdings LLC
    Inventors: Jason Daniel Fuhr, Jonathan Paul Lobert, Xugang Zhang
  • Patent number: 12374754
    Abstract: Provided is a separator for a secondary battery including a porous substrate and a coating layer disposed on at least one surface of the porous substrate. The coating layer includes a first fluorine-based binder including a vinylidene fluoride (VDF)-derived unit and a hexafluoropropylene (HFP)-derived unit, and a second fluorine-based binder including vinylidene fluoride (VDF)-derived unit and a tetrafluoroethylene (TFE)-derived unit, the hexafluoropropylene (HFP)-derived unit is included in an amount of less than or equal to 5 mol % based on 100 mol % of the first fluorine-based binder, the tetrafluoroethylene (TFE)-derived unit is included in an amount of greater than 10 mol % and less than or equal to 40 mol % based on 100 mol % of the second fluorine-based binder.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: July 29, 2025
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Daehyun Hong, Dowon Kim, Imhyuck Bae, Hyunwook Jung, Jaehyun Cho
  • Patent number: 12362399
    Abstract: A secondary battery is provided including an electrode wound body housed in a battery can, with the electrode wound body having a structure including a band-shaped positive electrode and a band-shaped negative electrode laminated and wound with a separator interposed therebetween, where the positive electrode includes a positive electrode active material layer on both sides of a band-shaped positive electrode foil, the negative electrode includes a negative electrode active material layer on both sides of a band-shaped negative electrode foil, the electrode wound body includes a positive electrode tab at a central part of the positive electrode, includes a negative electrode tab on a winding end side of the negative electrode, and includes a foil tab in a flat plate shape on a winding start side of either one or both of the positive electrode and the negative electrode.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: July 15, 2025
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Toshikazu Nakamura
  • Patent number: 12362441
    Abstract: Provided is a secondary battery, including: an electrode wound body having a structure in which a band-shaped positive electrode and a band-shaped negative electrode are stacked with a separator interposed therebetween and wound; and a battery can that accommodates the electrode wound body, wherein the positive electrode has a positive electrode active material layer on both sides of a band-shaped positive electrode foil, the negative electrode has a negative electrode active material layer on both sides of a band-shaped negative electrode foil, the electrode wound body has a positive electrode foil tab between a winding starting side and a winding ending side of the positive electrode and a negative electrode tab between a winding starting side and a winding ending side of the negative electrode, the positive electrode foil tab has a plate-like part joined on the winding starting side of the positive electrode, and a comb-like part protruding from the positive electrode, and the comb-like part is a connectin
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: July 15, 2025
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Toshikazu Nakamura, Koji Shibutani
  • Patent number: 12355078
    Abstract: A rechargeable lithium battery includes a positive electrode including a positive electrode active material including a secondary particle in which a plurality of primary particles are aggregated, the secondary particle having at least a portion of the primary particles radially arranged and comprising a lithium nickel-based composite oxide, and a boron coating layer on the surface of the secondary particle and including lithium borate; a negative electrode; a separator between the positive electrode and the negative electrode; an electrolyte including vinylene carbonate; and a case containing the positive electrode, the negative electrode, the separator, and the electrolyte.
    Type: Grant
    Filed: December 1, 2022
    Date of Patent: July 8, 2025
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Pilsang Yun, Do-Yu Kim, Hyunbeom Kim, Sangin Park, Yongchan You
  • Patent number: 12334512
    Abstract: According to the present disclosure, a secondary battery capable of inhibiting precipitation of metallic lithium is provided. A secondary battery disclosed herein includes a wound electrode body, and a battery case. An insufficiently stacked region is formed in the vicinity of a positive electrode starting end portion in a flat portion of the electrode body. In the insufficiently stacked region, the total number of layers of a positive electrode plate and a negative electrode plate is smaller than in other regions in the flat portion. In addition, in the secondary battery, a protruding portion protruding toward at least a part of the insufficiently stacked region is formed on an inner surface of the battery case. As a result, it is possible to prevent pressing failure in the insufficiently stacked region and inhibit precipitation of metal Li due to a local increase in an inter-electrode distance.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: June 17, 2025
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Yuma Kamiyama, Daisuke Nishide, Yukihiro Mizonobe
  • Patent number: 12334592
    Abstract: A battery module connector for electrically conductive connecting of two battery modules includes a first contact element for electrically conductive contacting of a first battery module, a second contact element for electrically conductive contacting of a second battery module, a band-shaped wire braid that is electrically conductively connected at a first end to the first contact element and at a second end to the second contact element, and at least one spring element that is inserted into a section of the wire braid between the first end and the second end, and is configured to impinge the section with a spring force such that the section is widened radially with respect to a longitudinal axis of the wire braid.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: June 17, 2025
    Assignee: Lisa Draexlmaier GmbH
    Inventor: Leonard Dobos
  • Patent number: 12327833
    Abstract: A energy storage device for cycling between a charged state and a discharged state, the energy storage device including an enclosure, an electrode assembly and a non-aqueous liquid electrolyte within the enclosure, and a constraint that maintains a pressure on the electrode assembly as the energy storage device is cycled between the charged and the discharged states.
    Type: Grant
    Filed: December 6, 2023
    Date of Patent: June 10, 2025
    Assignee: Enovix Corporation
    Inventors: Robert S. Busacca, Ashok Lahiri, Murali S. Ramasubramanian, Bruno A. Valdes, Gardner Cameron Dales, Christopher J. Spindt, Geoffrey Matthew Ho, Harrold J. Rust, III, James D. Wilcox, John F. Varni, Kim Han Lee, Nirav S. Shah, Richard J. Contreras, Lynn Van Erden, Ken S. Matsubayashi, Jeremie J. Dalton
  • Patent number: 12315944
    Abstract: The present disclosure provides a battery cell, a battery module, a battery pack, a device using the battery cell as a power source, and an assembling method of the battery cell, wherein the battery cell comprising an electrode assembly (20) and an insulating support plate (50), the electrode assembly (20) comprises a main body portion (22) and a tab (21) connected to the main body portion (22), the insulating support plate (50) comprises a first support portion (51) and a second support portion (52) connected to the first support portion (51), the first support portion (51) protrudes in a direction approaching the main body portion (22) relative to the second support portion (52) such that a first gap is formed between the second support portion (52) and the main body portion (22), and at least a portion of the tab (21) is located in the first gap.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 27, 2025
    Assignee: Contemporary Amperex Technology (Hong Kong) Limited
    Inventors: Yulian Zheng, Xiaoping Zhang, Peng Wang, Zhanyu Sun
  • Patent number: 12283653
    Abstract: A secondary battery that includes a wound electrode assembly in which a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode are wound about a winding axis; and a current collecting tab at a first end of the wound electrode assembly along a direction of the winding axis, wherein the wound electrode assembly has a separator extension portion in which the separator extends more than the positive electrode and the negative electrode toward a second end of the wound electrode assembly along the direction of the winding axis, the second end being opposite the first end, and the separator has a bent shape that protrudes toward an outer peripheral side of the wound electrode assembly at least at a part of the separator extension portion in a sectional view passing through the winding axis.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: April 22, 2025
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Naoto Akizuki, Yusuke Tanji, Keisuke Nishimoto
  • Patent number: 12278325
    Abstract: To improve the flexibility of a power storage device, or provide a high-capacity power storage device. The power storage device includes a positive electrode, a negative electrode, an exterior body, and an electrolyte. The outer periphery of each of the positive electrode active material layer and the negative electrode active material layer is a closed curve. The exterior body includes a film and a thermocompression-bonded region. The inner periphery of the thermocompression-bonded region is a closed curve. The electrolyte, the positive electrode active material layer, and the negative electrode active material layer are in a region surrounded by the thermocompression-bonded region.
    Type: Grant
    Filed: January 5, 2024
    Date of Patent: April 15, 2025
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masayuki Kimura, Junya Goto
  • Patent number: 12278341
    Abstract: An electrode assembly includes a negative electrode plate, a positive electrode plate, and a separator disposed between the negative electrode plate and the positive electrode plate. The negative electrode plate, the positive electrode plate, and the separator are wound together around a winding axis to form the electrode assembly. The negative electrode plate is a continuous negative electrode plate extending from a foremost winding end to a hindmost winding end along a winding direction. The positive electrode plate includes a continuous positive electrode plate disposed along the winding direction as well as a single-sheet positive electrode plate and/or a long-sheet positive electrode plate disposed along the winding direction apart from the continuous positive electrode plate.
    Type: Grant
    Filed: August 29, 2024
    Date of Patent: April 15, 2025
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Wen Chang, Chenghua Fu, Suogang Guo, Yonghuang Ye, Chang Zhu, Yan Zhang, Wenge Han
  • Patent number: 12272788
    Abstract: A method for forming a bipolar solid-state battery includes preparing a mixture of gel precursor solution and solid electrolyte. The gel precursor includes a polymer, a first solvent, and a liquid electrolyte. The liquid electrolyte includes a second solvent, a lithium salt, and electrolyte additive. The method includes loading the mixture onto at least one of a first electrode, a second electrode, and a third electrode. Each of the first, second, and third electrodes includes a plurality of solid-state electroactive particles. The method includes removing at least a portion of the first solvent from the mixture to form a gel and positioning one of the first, second, and third electrodes with respect to another of the first, second, and third electrodes. The method includes applying a polymer blocker to a border of the first, second, or third electrodes.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: April 8, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Zhe Li, Meiyuan Wu, Yong Lu, Haijing Liu, Xiaochao Que
  • Patent number: 12255289
    Abstract: Provided is a secondary battery where a positive electrode includes a first covered part covered with a positive electrode active material layer and a positive electrode active material non-covered part on a positive electrode foil, and a negative electrode includes a second covered part covered with a negative electrode active material layer and a negative electrode active material non-covered part on a negative electrode foil, one or both of the positive electrode active material non-covered part and the negative electrode active material non-covered part have a surface formed by bending toward the central axis of the wound structure and overlapping each other, and the surface is joined to the positive electrode current-collecting plate or the negative electrode current-collecting plate.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: March 18, 2025
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Masashi Takahashi
  • Patent number: 12224458
    Abstract: A battery includes: an outer container; an electrode assembly; a lid member; a current collection tab; an electrode terminal; a lead; an insulation guard; and a pair of protrusions. The outer container includes a bottom wall and a peripheral wall, and the peripheral wall includes a pair of side walls opposed to each other across the internal cavity in a longitudinal direction. The current collection tab protrudes from the electrode assembly in a lateral direction in the internal cavity, and the insulation guard electrically insulates the lead and the current collection tab from an inner surface of the outer container in the internal cavity. Each of the pair of protrusions protrudes from the insulation guard and abuts on a boundary portion between corresponding one of the pair of side walls and the bottom wall.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: February 11, 2025
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventor: Kuniaki Yamamoto
  • Patent number: 12224443
    Abstract: Provided are: a highly reliable secondary battery electrode plate; and a secondary battery using same. The electrode plate is a positive electrode plate for a secondary battery, the positive electrode plate having a metallic positive electrode core body and a positive electrode active material layer formed on both surfaces of the positive electrode core body, wherein the positive electrode plate has a first edge and a positive electrode tab protruding from the first edge, and a fluorine-containing coating is formed on the end surface of the positive electrode core body at the first edge of the positive electrode plate. The secondary battery has the positive electrode plate and a negative electrode plate.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: February 11, 2025
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Hiroyuki Tajima, Tetsuya Sato
  • Patent number: 12224393
    Abstract: A disclosed method of manufacturing a battery includes the steps of: (A) suction-attaching a first separator and a second separator to a winding core, with the first separator and the second separator being stacked on each other; and (B) winding the first separator and the separator around the winding core. Each of the first separator and the second separator includes a porous substrate layer made of resin, and at least one surface layer formed on at least one surface of the substrate layer.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: February 11, 2025
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Kazuya Ikeshita, Yoshiyuki Furukoji
  • Patent number: 12183894
    Abstract: An electrode has a band-shaped core and an electrode mixture layer carried by the core to form a spiral electrode assembly with a gas generating electrode and a separator for an alkaline secondary battery. The electrode in the spiral shape has a first circumference portion, an intermediate portion, and an outermost circumference portion. The first circumference portion is a starting portion for winding into the spiral shape. The intermediate portion is a second and following circumferences of the spiral shape. The outermost circumference portion has an inner surface only which faces the gas generating electrode. The electrode mixture layer includes a reactant that develops a reaction consuming gas generated from the gas generating electrode. An amount of the reactant in the first circumference portion is more than those in the intermediate portion and/or the outermost circumference portion.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: December 31, 2024
    Assignee: FDK CORPORATION
    Inventor: Akira Saguchi
  • Patent number: 12176582
    Abstract: A battery cell, a battery, an electrical device, and a method and device for manufacturing the battery cell. In some embodiments, the battery cell comprises a battery core, a shell, an end cover, and a first insulating component. The battery core comprises a main body part and electrode tabs protruding from the main body part. The shell has a first opening and is configured to accommodate the battery core. The end cover is configured to cover the first opening. The first insulating component comprises an insulating main body and an insulating part, wherein the insulating main body is located on a side, facing the electrode tabs, of the end cover, and the insulating main body is configured to isolate the battery core from the end cover.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: December 24, 2024
    Assignee: Contemporary Amperex Technology (Hong Kong) Limited
    Inventors: Wenlin Zhou, Shengwang Chen, Liangfan Xu, Quankun Li, Xing Li
  • Patent number: 12160009
    Abstract: A battery cell includes an electrode assembly, a housing, a cover plate, and a support member. The housing includes a first electrode plate and a second electrode plate. At least a part of the first electrode plate is stacked with the second electrode plate. The housing is provided with an opening and an accommodation cavity configured to accommodate the electrode assembly. The housing includes a side plate. The cover plate is perpendicular to the side plate and configured to close the opening. At least a part of the support member is disposed between the side plate and the electrode assembly, and the support member is configured to support the electrode assembly so that a spacing between an end, facing the side plate, of the first electrode plate and the side plate in a first direction is greater than a preset value. The first direction being a direction perpendicular to the side plate.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: December 3, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventor: Wenwei Chen
  • Patent number: 12159974
    Abstract: An aspect of the present invention relates to a cylindrical secondary battery including a bottomed cylindrical battery case having an opening, an electrode group, an electrolyte solution, the electrode group and the electrolyte solution being housed in the battery case, and a sealing member blocking the opening of the battery case. The electrode group includes a positive electrode, a negative electrode, and a separator placed between the positive electrode and the negative electrode and is formed by winding the positive electrode and the negative electrode with the separator therebetween. The negative electrode includes a negative electrode current collector and a negative electrode mix layer formed on at least one principal surface of the negative electrode current collector. The positive electrode includes a positive electrode current collector and a positive electrode mix layer formed on at least one principal surface of the positive electrode current collector.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: December 3, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro Ueda, Seiichi Aoki
  • Patent number: 12155098
    Abstract: A multifunctional manifold for use with electrochemical devices having a spiral cross-section, such as spiral solid-oxide fuel cells, includes an interface that is configured to be placed in operative communication with such devices. The interface includes a fuel interface section and an oxidant interface section that are each configured as spirals. The spiral interface sections also include channels that are configured to be placed in operative communication with corresponding spiral channels of the electrochemical device to deliver operating gases, such as fuel gas and oxidant gas, thereto. In addition to delivering operating gases to the fuel cells, the multifunctional manifold is also configured to act as an electrical current collector and a heat exchanger.
    Type: Grant
    Filed: May 3, 2023
    Date of Patent: November 26, 2024
    Assignees: Kent State University, Yanhai Power Technology, LLC
    Inventors: Yanhai Du, Aliia Mubarak Moh Maar
  • Patent number: 12155059
    Abstract: A secondary battery includes: a first electrode provided with a first collector and a first electrode active material applied on at least one surface of the first collector; and a second electrode provided with a second collector and a second electrode active material applied on at least one surface of the second collector, wherein an uneven coating portion at which the first electrode active material irregularly increases in amount and is applied is provided on at least one of a coating start portion or a coating end portion of the first electrode active material, and an inactive coating portion configured to cover the uneven coating portion is provided on at least one of a coating start portion or a coating end portion of the second electrode active material. A method of manufacturing the secondary battery is also provided.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: November 26, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Nam Won Kim, Eun Sun Choi, So Ra Lee
  • Patent number: 12148877
    Abstract: Provided is a rolled alkali metal battery wherein the alkali metal is selected from Li, Na, K, or a combination thereof. The battery comprises an anode, a cathode, an alkali metal ion-conducting separator electronically separating the anode and the cathode, and an alkali metal ion-containing electrolyte in ionic contact with the anode and the cathode, wherein the anode contains a wound roll of an anode active material having an anode roll length, an anode roll width, and an anode roll thickness and/or the cathode contains a wound roll of a cathode active material having a cathode roll length, a cathode roll width, and a cathode roll thickness and wherein the anode roll width and/or the cathode roll width direction is substantially perpendicular to the separator plane.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: November 19, 2024
    Assignee: Honeycomb Battery Company
    Inventors: Chueh Liu, Aruna Zhamu, Bor Z. Jang
  • Patent number: 12132187
    Abstract: A heat management safety enhanced vehicle battery pack based on nested lithium ion batteries includes an insulating housing. K insulating positioning and connecting plates are arranged in the insulating housing along a vertical direction. The positioning and connecting plate on each layer includes the batteries in M rows and N columns to form battery pack units. All the battery pack units perform output alone or perform output after being connected in series or in parallel to form a battery pack. Each battery includes a metal shell and a cell filled in the shell. The shell includes an inner cylinder and an outer cylinder. The inner cylinder is located in a through hole in the center of the outer cylinder. A gap is formed between a side wall of the inner cylinder and a secondary outer wall of the outer cylinder. The cell includes an outer cell and an inner cell.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: October 29, 2024
    Assignee: NANJING TECH UNIVERSITY
    Inventors: Zhirong Wang, Jinlong Bai
  • Patent number: 12132230
    Abstract: A battery cell includes electrode assemblies arranged in a first direction, where an end part of each electrode assembly along a second direction perpendicular to the first direction is provided with a tab; and a connection member configured to connect tabs of the electrode assemblies and an electrode terminal of the battery cell. The connection member includes a main body portion and a pin, the main body portion extends along the first direction, and includes a first surface and a second surface perpendicular to the second direction, the main body portion is provided with a plurality of through grooves passing through the first surface and the second surface, and the plurality of through grooves are respectively configured to accommodate the tabs of the plurality of electrode assemblies.
    Type: Grant
    Filed: May 13, 2024
    Date of Patent: October 29, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Lulu Bai, Quankun Li, Ningsheng Wu, Wenlin Zhou, Ting Zheng
  • Patent number: 12132197
    Abstract: A battery pack may include a battery pack case and battery cells accommodated in the battery pack case; the inner space of the battery pack case may include a first area, a second area, a third area, and a fourth area; a first battery cell may be provided in the first area, a second battery cell may be provided in the second area, a third battery cell may be provided in the third area, and a fourth battery cell may be provided in the fourth area; and the first battery cell, the second battery cell, the third battery cell, and the fourth battery cell each have a first discharge voltage plateau and a second discharge voltage plateau, and an average discharge voltage in the first discharge voltage plateau may be higher than an average discharge voltage in the second discharge voltage plateau.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: October 29, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Baoyun Xu, Shaocong Ouyang, Chenghua Fu
  • Patent number: 12119454
    Abstract: An all solid battery includes a multilayer structure in which solid electrolyte layers and internal electrodes are alternately stacked, the plurality of internal electrodes including an electrode active material and a carbon material, the multilayer structure having a rectangular parallelepiped shape, the plurality of internal electrodes being alternately exposed to two different faces of the multilayer structure, a first cover layer provided on an upper face of the multilayer structure in a stacking direction, and a second cover layer provided on a lower face of the multilayer structure in the stacking direction. Each thickness of the plurality of internal electrodes is equal to or more than each thickness of the plurality of solid electrolyte layers. Vickers hardness of the plurality of solid electrolyte layers and Vickers hardness of the first and second cover layers are larger than Vickers hardness of the plurality of internal electrodes.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: October 15, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masashi Sekiguchi, Daigo Ito
  • Patent number: 12107234
    Abstract: Lithium-ion battery electrode assemblies and methods are provided that comprise a winding structure, an immersion failure tape, and a can from the inside to the outside, wherein the winding structure is obtained by winding a layer structure. The layer structure comprises the following components from the inside to the outside: a1) a first separator layer; a2) a first electrode layer; a3) a second separator layer; a4) an expansion tape layer; and a5) a second electrode layer. The first and second electrode layers are different and are respectively selected from the group consisting of cathode layer and anode layer such that the electrode assemblies exhibit at least one of low impedance and good vibration resistance.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: October 1, 2024
    Assignee: TESA SE
    Inventors: Yuanlei Ding, Haofeng Yang
  • Patent number: 12095117
    Abstract: An insulator for a secondary battery and a secondary battery including the insulator are disclosed. According to one aspect, an insulator for a secondary battery includes: a body part configured to define a body; and a buffer part adhering to a top surface of the body part, wherein the buffer part includes a plurality of protrusions that protrude upward, and the body part is made of a material different from that of the buffer part.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: September 17, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventor: Sue Jin Kim
  • Patent number: 12095023
    Abstract: The present invention provides an electrode assembly in which a negative electrode coated with a negative electrode active material on a surface of a negative electrode collector, a separator, and a positive electrode coated with a positive electrode active material on a surface of a positive electrode collector are repeatedly laminated, the electrode assembly comprising: monocells in which the positive electrode, the separator, the negative electrode, and the separator are laminated, wherein at least two or more monocells are laminated, wherein, in any one of the monocells, an expansion part extending lengthily to one side is formed on the separators, and the expansion part of the separator surrounds the monocells laminated to be disposed at the outermost layers to fix the laminated monocells.
    Type: Grant
    Filed: December 1, 2022
    Date of Patent: September 17, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Yong Jun Kim, Hee Seok Jeong, Ki Won Sung, Eun Ju Lee
  • Patent number: 12087915
    Abstract: Energy storage devices, battery cells, and batteries of the present technology may include a housing characterized by a first end and a second end opposite the first end. The batteries may include a set of electrodes located within the housing. The set of electrodes may be positioned within the interior region of the housing. The set of electrodes may include a first electrode and a second electrode. The first electrode may include a tab coupled with a surface of the housing at a distal end and coupled with the first electrode at a proximal end. The tab may be coupled with a first surface of the first electrode. A first insulating material may be applied along a second surface of the first electrode across a section corresponding to a location where the tab is coupled with the first electrode. The batteries may also include a cap at least partially contained within the interior region of the housing. The cap may be characterized by a first surface facing the set of electrodes.
    Type: Grant
    Filed: March 1, 2023
    Date of Patent: September 10, 2024
    Assignee: Apple Inc.
    Inventors: Christopher R. Pasma, YooEup Hyung, Brian K. Shiu, Stephen J. Wisler
  • Patent number: 12074293
    Abstract: A secondary battery includes a flat wound electrode body in which an electrode sheet is wound, and an electrode terminal. The electrode sheet has a current collector, an electrode active material layer which is formed on a surface of the current collector, and a non-formation portion in which the electrode active material layer is not formed on the surface of the current collector. The wound electrode body has a first end portion in which a rounded portion is formed. A first slit is formed along a winding direction in the non-formation portion at the first end portion. A flat surface portion to which the electrode terminal is joined is provided in a portion positioned further toward opposite than the first slit from the electrode active material layer in a portion of the non-formation portion at the first end portion.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: August 27, 2024
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Masafumi Kadoi, Takahiro Sakurai, Kosuke Suzuki
  • Patent number: 12069440
    Abstract: Disclosed is a hearing device comprising a battery module. The battery module comprises a battery for powering the hearing device; a conductor unit for providing electrical connection to the battery; a conductive adhesive arranged between the battery and the conductor unit for connecting the conductor unit to the battery to form a battery component; and a coating provided at least partly around the battery component to form the battery module.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: August 20, 2024
    Assignee: GN Hearing 2 A/S
    Inventors: Thorvaldur Oli Bodvarsson, Kamila Piotrowska, Emil Holm Knudsen
  • Patent number: 12068471
    Abstract: A predoping method for a negative electrode active material to dope the negative electrode active material with lithium ions using an electrolyte solution that includes lithium ions. The electrolyte solution includes at least one type of additive having a reduction potential higher than a reduction potential of a solvent contained in the electrolyte solution.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: August 20, 2024
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Shotaro Doi, Yuki Kusachi, Noboru Yamauchi, Tomohiro Kaburagi, Hideaki Horie, Yusuke Nakashima, Kazuya Tsuchida, Naofumi Shoji, Koji Sumiya, Shigehito Asano, Yasuyuki Koga, Nobuo Ando, Terukazu Kokubo
  • Patent number: 12043126
    Abstract: Structurally integrated energy supply systems for aircraft and methods of forming the structurally integrated energy supply systems. The structurally integrated energy supply systems include an aircraft structural component, a cell array, and a plurality of energy-producing inserts. The aircraft structural component at least partially defines an interior region. The cell array includes a plurality of cell walls that defies a plurality of elongate cell volumes and is positioned within the interior region. Each energy-producing insert in the plurality of energy-producing inserts is positioned within a corresponding elongate cell volume in the plurality of elongate cell volumes and is configured to produce a corresponding insert electric current. The cell array provides structural load distribution to the aircraft structural component via the plurality of cell walls and contributes to a structural stiffness of the aircraft structural component.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: July 23, 2024
    Assignee: The Boeing Company
    Inventors: Roger D. Bernhardt, Donald V. Drouin, Jr.
  • Patent number: 12034166
    Abstract: A lithium secondary battery includes a cathode including a cathode current collector and a cathode active material layer formed on the cathode current collector, and an anode including an anode current collector and an anode active material layer formed on the anode current collector. The anode active material layer has an area larger than that of the cathode active material layer. The anode active material layer includes an overlapping portion overlying the cathode active material layer in a planar direction and a margin portion around the overlapping portion. The margin portion has an electrical resistance greater than that of the overlapping portion.
    Type: Grant
    Filed: June 16, 2023
    Date of Patent: July 9, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Ji Hyung Kim, Young Ha Kim, Sang Bin Lee, Ho Jin Hwang
  • Patent number: 12034135
    Abstract: A battery module for constructing a drive battery for a motor vehicle includes a carrier and a plurality of battery cells that are connected to the carrier by means of a casting compound, wherein a venting duct is provided in the casting compound so as to discharge gases from a damaged battery cell. A production method for a battery module of this type is also provided.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: July 9, 2024
    Assignee: WEBASTO SE
    Inventors: Johannes Hattendorff, Knut Welke
  • Patent number: 12015155
    Abstract: A composition to form a porous insulating layer on an active material layer on a main surface of a current collector current collector is provided. The active material layer includes an active material to electrochemically intercalate and deintercalate lithium ions and an active material layer binder, the composition to form the porous insulating layer includes a solvent including an organic solvent, an insulating inorganic particle, and a binder, and the binder is a polymer obtained by polymerization of monomers including about 30 wt % to about 60 wt % of an aromatic vinyl compound, about 20 wt % to about 69 wt % of (meth)acrylic acid ester, about 5 wt % to about 35 wt % of (meth)acrylic acid ester including a hydroxy group or an ether group, and about 1 wt % to about 10 wt % of a vinyl compound including an acidic functional group, based on a total weight of the binder.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: June 18, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tomoyuki Fukatani, Koji Hoshiba
  • Patent number: 11978844
    Abstract: An electrode assembly and a related battery, and battery module are provided, wherein the electrode assembly includes: at least one positive electrode plate and at least one negative electrode plate, the number of all the positive and negative electrode plates is greater than or equal to 3; the positive and negative electrode plates are wound around the winding axis and arranged in a superimposing manner along a direction vertical to the winding axis, each positive electrode plate includes a positive main body part, at least part of the positive main body part is a positive active substance area, each negative electrode plate includes a negative main body part, at least part of the negative main body part is the negative active substance area, two ends of the negative active substance area along the winding axis both exceed corresponding ends of the adjacent positive active substance area.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: May 7, 2024
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Hu Xu, Haizu Jin, Yuqun Zeng
  • Patent number: 11978862
    Abstract: An electrochemical device, including a cell and a shell enclosing the cell; the cell includes a jelly roll including a first electrode and a second electrode spaced from each other, a separator is disposed between the first electrode and the second electrode, the first electrode and the second electrode are wound to form the cell; the first electrode includes a first current collector, the first current collector includes a first surface and a second surface disposed oppositely; the first surface faces the shell, and includes a coated region coated with a first active material and an uncoated region; the uncoated region includes a first uncoated region disposed at an end of the jelly roll, and the first uncoated region includes alternating bent portions and straight portions; and the bent portions are provided with an insulating layer.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: May 7, 2024
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Qiang Zheng, Zhanzhao Fang, Qi Dang
  • Patent number: 11973177
    Abstract: The present invention relates to a secondary battery in which an electrode tab is improved in mechanical strength and a method for manufacturing the same. Also, the secondary battery according to the present invention includes: an electrode provided with a coating portion coated with an active material on an electrode collector and a non-coating portion on which the active material is not applied to the electrode collector in a longitudinal direction of the electrode collector and a notching tab part extending from the coating portion in a width direction of the electrode collector without coating with the active material and overlapping each other to form two or more layers when the electrode is wound.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: April 30, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Jae Woong Kim, Hyoung Kwon Kim, Sang Uck Kim
  • Patent number: 11962011
    Abstract: A battery including a coiled electrode assembly with positive and negative electrodes coiled with a separator interposed therebetween, where the negative electrode includes a negative electrode current collector, a first negative electrode mixture layer formed on a first surface of the negative electrode current collector, the first surface facing an outside of the electrode assembly, and a second negative electrode mixture layer formed on a second surface of the negative electrode current collector, the second surface facing an inside of the electrode assembly. The first negative electrode mixture layer contains cellulose and rubber binders. A content of the cellulose binder is larger near a surface of the mixture layer than near the negative electrode current collector and a content of the rubber binder is larger near the negative electrode current collector than near the surface of the mixture layer in the thickness direction of the first negative electrode mixture layer.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: April 16, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Sho Urata, Nobuhiro Sakitani
  • Patent number: 11949117
    Abstract: A battery includes a plurality of energy storage units, a flexible linkage arranged to physically and electrically connect each adjacent pair of energy storage units, and an encapsulation arranged to encapsulate the energy storage units and the linkages. The energy storage units are movable with respect to each other via the flexible linkage within each adjacent pair of energy storage units in the encapsulation.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: April 2, 2024
    Assignee: City University of Hong Kong
    Inventors: Chunyi Zhi, Ao Chen, Zijie Tang
  • Patent number: 11942604
    Abstract: A solid-state battery having a battery body that includes a plurality of adjacent elements. A first external electrode is electrically connected to a first positive electrode. A second external electrode is electrically connected to a first negative electrode. A third external electrode is electrically connected to a second positive electrode. A fourth external electrode is electrically connected to a second negative electrode. A first element and a second element of the plurality of adjacent elements are connected in series by integrating the first external electrode and the fourth external electrode or by integrating the second external electrode and the third external electrode.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 26, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Akira Baba
  • Patent number: 11942597
    Abstract: Provided are: a solid-state battery in which an initial load is applied to a battery cell; and a solid-state battery module comprised of the battery. This solid-state battery includes a pressing portion provided on a solid-state battery case so that a spring force is utilized to apply the initial load to the solid-state battery. Specifically, the solid-state battery includes a solid-state battery cell, and a battery case for accommodating the solid-state battery cell, in which the solid-state battery cell is a stack including a positive electrode, a negative electrode, and a solid electrolyte present between the positive electrode and the negative electrode, and in which a face constituting the battery case and extending substantially perpendicular to the stacking direction of the stack has a pressing portion.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 26, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takuya Taniuchi, Masahiro Ohta
  • Patent number: 11936048
    Abstract: Positive electrode-forming compositions including a) at least one positive electrode active material (AM), b) at least one binder (B) comprising at least one vinylidene fluoride copolymer [polymer (A)] that includes repeating units derived from vinylidene fluoride (VDF), recurring units derived from a fluoroalkylvinyl ether (FVE) monomer and recurring units derived from at least one hydrophilic (meth)acrylic monomer (MA) and c) at least one solvent, a process for their manufacture and their use thereof for manufacturing electrodes fix high-capacity nickel-rich lithium ion batteries.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: March 19, 2024
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Marco Alberto Spreafico, Ségolène Brusseau, Julio A. Abusleme, Alessandro Ghielmi, Giulio Brinati
  • Patent number: 11923564
    Abstract: A method for producing a battery module is provided. The method for producing a battery module includes: stacking a plurality of battery cells; disposing a plurality of bus bars adjacent to electrode leads respectively provided at the plurality of battery cells; by a welding jig, pressing the electrode leads so that the electrode leads come into contact with the bus bars, respectively; and welding the electrode leads and the bus bars through an opening formed in the welding jig.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: March 5, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Ho-June Chi, Jung-Hoon Lee, Jeong-O Mun, Jin-Yong Park
  • Patent number: 11908990
    Abstract: To improve the flexibility of a power storage device, or provide a high-capacity power storage device. The power storage device includes a positive electrode, a negative electrode, an exterior body, and an electrolyte. The outer periphery of each of the positive electrode active material layer and the negative electrode active material layer is a closed curve. The exterior body includes a film and a thermocompression-bonded region. The inner periphery of the thermocompression-bonded region is a closed curve. The electrolyte, the positive electrode active material layer, and the negative electrode active material layer are in a region surrounded by the thermocompression-bonded region.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: February 20, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masayuki Kimura, Junya Goto
  • Patent number: 11904175
    Abstract: A battery configured to support a relatively high rate of energy discharge relative to its capacity for energy intensive therapy delivery. The battery includes a feedthrough insulator cap disposed within the interior of the battery on at least a portion of a ferrule, at least a portion of an insulator, and at least a portion of a pin, which define a feedthrough extending through an enclosure of the battery; a first electrode disposed within the enclosure and electrically coupled to the pin; a second electrode disposed within the enclosure and separated a distance from the first electrode; and an electrolyte disposed between the first electrode and the second electrode. During operation of the battery, the feedthrough insulator cap reduces dendrite formation on at least a portion of the ferrule, the pin, or both.
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: February 20, 2024
    Assignee: Medtronic, Inc.
    Inventors: Jeffrey J. Louwagie, Richard W. Swenson, Joel Hoepner, David J. DeSmet