Plural Concentric Or Single Coiled Electrode Patents (Class 429/94)
  • Patent number: 11329309
    Abstract: A wound electrode assembly, including a first electrode plate including a first current collector and a second electrode plate including a second current collector, wherein the second electrode plate includes a second empty foil segment, the second empty foil segment surrounds the first electrode plate, the second empty foil segment is configured as a tail segment of the second electrode plate, in the second empty foil segment, a surface of the second current collector opposite to the first electrode plate is coated with active substance, a surface of the second current collector away from the first electrode plate is coated with the active substance. The wound electrode assembly to effectively avoids lithium dendrite while improving the utilization of the battery material and the energy density of the battery, thereby improving the safety performance of the battery.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: May 10, 2022
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Jing Jiang, Liangzhen Xiao
  • Patent number: 11329352
    Abstract: The present invention provides a secondary battery. The secondary battery comprises a first electrode tab and a first electrode plate. The first electrode plate first electrode plate comprises a first current collector, a first active layer, a first electrode tab receiving groove and a first electrode plate notch. The first active layer is disposed on a surface of the first current collector. The first electrode tab receiving groove is configured to receive the first electrode tab, and the first electrode tab is electrically connected with the first current collector through the first electrode tab receiving groove. The first electrode plate notch is disposed on an edge of the first electrode tab receiving groove.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: May 10, 2022
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Peipei Guo, Yi Zhao, Ping He, Hongxin Fang, Wenqiang Cheng
  • Patent number: 11322785
    Abstract: A secondary battery includes a first electrode assembly including a first cathode and a first anode, a second electrode assembly that is disposed to be opposite the first electrode assembly and that includes a second cathode and a second anode, a cooling plate disposed between the first and second electrode assemblies for cooling of the first and second electrode assemblies, an exterior material in which the first and second electrode assemblies are disposed, a cathode tab electrically connected to the first and second cathodes and exposed outside the exterior material, and an anode tab electrically connected to the first and second anodes and exposed outside the exterior material, in which at least one of the cathode tab and the anode tab is coupled to the cooling plate.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: May 3, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sang Mok Park, Young Woo Lee
  • Patent number: 11322737
    Abstract: An alkaline dry battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution contained in the positive electrode, the negative electrode and the separator. The negative electrode includes a negative electrode active material including zinc, and an additive. The additive includes at least one selected from the group consisting of maleic acid, maleic anhydride and maleate salts.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: May 3, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuyuki Kusumoto, Yasufumi Takahashi, Atsushi Fukui
  • Patent number: 11302979
    Abstract: A battery arrangement for the structural integration of batteries in a vehicle, in particular an aircraft or spacecraft, includes at least one battery; and two supporting, multi-layered structural laminates, between which the at least one battery is held on both sides via battery holders, wherein each multi-layered structural laminate has a cooling plate layer and a current collector layer, wherein the at least one battery is coupled electrically to the current collector layer.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: April 12, 2022
    Assignee: Airbus Defence and Space GmbH
    Inventor: Kristian Zimmermann
  • Patent number: 11302901
    Abstract: An electrode assembly according to an exemplary embodiment of the present invention includes a cathode plate and an anode plate; a separator disposed between the cathode plate and the anode plate; and coating layers disposed between the separator and the cathode plate and between the separator and the anode plate. The separator includes a first portion that is covered with the coating layer, and a second portion that exposes a surface facing the cathode plate and a surface facing the anode plate, and at least one of the cathode plate and the anode plate includes a positive temperature coefficient (PTC) material.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: April 12, 2022
    Inventors: Jeonggil Kim, Jungseok Choi, Song Taek Oh
  • Patent number: 11296317
    Abstract: A method of producing a positive-electrode active material for a non-aqueous electrolyte secondary battery is provided. The method includes obtaining a precipitate containing nickel and manganese from a solution containing nickel and manganese, heat-treating the resulting precipitate at a temperature of from 850° C. to less than 1100° C. to obtain a first heat-treated product, mixing the first heat-treated product and a lithium compound, and heat-treating the resulting lithium-containing mixture at a temperature of from 550° C. to 1000° C. to obtain a second heat-treated product. The second heat-treated product contains a group of lithium transition metal composite oxide particles having an average particle diameter DSEM of from 0.5 ?m to less than 3 ?m and D50/DSEM of 1 to 2.5. The lithium transition metal composite oxide particles have a spinel structure based on nickel and manganese.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: April 5, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Tomooki Kawasaki, Kenichi Kobayashi, Takahiro Kitagawa
  • Patent number: 11296369
    Abstract: The present invention is focused on the making of an integral tubular battery pack of hollow cylindrical battery cells better suited for thermal management. The hollow cylindrical cell structure is made of two concentric cylinders within which the electrode assembly is mounted. The inner hollow cylindrical cell structure exterior' surface is the newly added feature as it provides additional area for heat transfer with the cell' surrounding. The newly designed hollow cylindrical cells' lithium-ion battery packs are equipped with thermal management system and used in large storage facilities and industrial batteries applications such as EVs and large-scale machines in general.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: April 5, 2022
    Inventor: Ahmed Ben Amor Tarfaoui
  • Patent number: 11296330
    Abstract: A battery including: a casing having a cylindrical portion, an end portion configured for covering an opening disposed in an end of the cylindrical portion, and an inner surface defining a chamber in which an electrolyte is disposed therein; a conductive surface located within the chamber adjacent the inner surface of the casing, the conductive surface being configured for electrical communication with an anode terminal of the battery; a permeable separator sheet located within the casing configured for electrically isolating the electrolyte from the conductive surface; a conductive rod having a first end configured for electrical communication with a cathode terminal of the battery, and, a second end of the conductive rod configured for electrical communication with the electrolyte; wherein the end portion and the cylindrical portion are movably attached to each other, the end portion and cylindrical portion being movable relative to each other between at least a first attached position whereby the end porti
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: April 5, 2022
    Assignee: Battery Research Technology Limited
    Inventor: Niels Bakker
  • Patent number: 11289734
    Abstract: A method for producing a secondary battery including an electrode body having a positive electrode plate and a negative electrode plate, a prismatic outer body having an opening and houses the electrode body, a sealing plate that seals the opening of the prismatic outer body, and a positive electrode external terminal that is electrically connected to the positive electrode plate and attached to the sealing plate. The method includes a fixation step of electrically connecting a first positive electrode current collector to a positive electrode external terminal and fixing the first positive electrode current collector to the sealing plate, a first connection step of weld-connecting a stack of a plurality of positive electrode tabs to the second positive electrode current collector, and a second connection step of weld-connecting the first positive electrode current collector to the second positive electrode current collector after the fixation step and the first connection step.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 29, 2022
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Atsushi Tsuji
  • Patent number: 11289782
    Abstract: A secondary battery includes an electrode assembly; a case accommodating the electrode assembly; a cap plate coupled to a top portion of the case; an electrode terminal electrically connected to the electrode assembly and including a terminal pillar passing through the cap plate, and an extension part extending horizontally from a top end of the terminal pillar; a terminal plate electrically connected to the electrode terminal; an insulation member between the terminal plate and the cap plate; and a fuse part defined by a portion of the extension part and the terminal plate that are welded to each other and located on the insulation member.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: March 29, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Min Hyung Guen
  • Patent number: 11283102
    Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte having lithium-ion conductivity. A negative electrode current collector includes a layer having a first surface and a second surface opposite to the first surface, first protrusions protruding from the first surface, and second protrusions protruding from the second surface. The first and second surfaces are surfaces on which lithium metal is deposited during charge. When viewed in a direction of a normal to the first surface, a total area of overlap between the first protrusions and the second protrusions is ½ or less of a total area of the first protrusions.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: March 22, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryohei Miyamae, Akira Kano, Kensuke Nakura
  • Patent number: 11283057
    Abstract: A method of manufacturing an irregular electrode includes forming a first electrode line by continuously coating a first electrode slurry on a metal sheet, forming at least one second electrode line formed with a dotted line shape including uncoated portions positioned in parallel to the first electrode line by intermittently coating a second electrode slurry on the metal sheet that does not overlap the first electrode line, and forming the irregular electrode by notching the metal sheet with an irregular shape including the second electrode line and the first electrode line except for the uncoated portions of the at least one second electrode line.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: March 22, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Taek Soo Lee, Cheolwoo Kim, Sang Hoon Choy
  • Patent number: 11283111
    Abstract: A method of manufacturing a secondary battery is provided for manufacturing a secondary battery that includes an electrode winding body formed of a positive electrode and a negative electrode, and having a non-rectangular shape in planar view. In this manufacturing method, a positive electrode precursor and a negative electrode precursor are stacked on each other with a separator interposed therebetween to form an electrode precursor laminate, which is wound to form the electrode winding body. Moreover, the electrode precursor laminate has a comb-teeth shape in planar view, and winding is performed such that a winding axis for winding is substantially parallel to an extending direction of a terminal element of the secondary battery, whereby the electrode winding body is made non-rectangular.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: March 22, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Toru Kawai, Masahiro Otsuka
  • Patent number: 11283076
    Abstract: The present invention relates to an oxyhalide electrochemical cell comprising an anode of a Group IA metal and a cathode of a composite material prepared from a first electrochemically active carbonaceous material and a second electrochemically non-active carbonaceous material. The cathode material of the present invention provides increased discharge capacity compared to traditional lithium oxyhalide cells. In addition, the cathode material of the present invention is chemically stable which makes it particularly useful for applications that require increased rate capability in extreme environmental conditions such as those found in oil and gas exploration.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: March 22, 2022
    Assignee: Electrochem Solutions Inc.
    Inventors: Arden P. Johnson, Yufei Wang
  • Patent number: 11276895
    Abstract: A top cap for a secondary battery includes a circumferential area which defines an outer circumferential surface of the top cap, a central area which defines a central portion of the top cap, a connection area which connects the circumferential area to the central area, and a protrusion area which protrudes downward from the circumferential area, the central area, or the connection area. The top cap is assembled with a battery case, an electrode assembly positioned therein, and a through-hole formation member to form a secondary battery, in which at least a portion of the protrusion area of the top cap is positioned within a through-hole of the through-hole formation member.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: March 15, 2022
    Inventors: Joon Sup Kang, Joon Sung Bae, Nak Gi Sung, Sung Tae Kim
  • Patent number: 11276876
    Abstract: A secondary battery includes: an electrode assembly including first electrode plates and second electrode plates alternately stacked with a separator therebetween, and first electrode tabs overlapping one another at a same position and outwardly protruding, the first electrode tabs being uncoated portions of the first electrode plates, and a fixing tape adhered between the separator positioned at each of opposite long side surfaces and outer surfaces of the first electrode tabs; a first collector portion welded to the first electrode tabs of the electrode assembly; and a case accommodating the electrode assembly and the first collector portion.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: March 15, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung Ho Kwak, Joo Young Go
  • Patent number: 11270816
    Abstract: A data cable device includes USB connectors respectively formed at opposing ends of the data cable device; at least one data line having ends electrically connected to the respective USB connectors; a protection circuit module having a printed circuit board at which an external terminal is formed; a cable battery including an external input/output terminal electrically connected to an internal terminal of the printed circuit board, an inner electrode layer having a cylindrical shape formed at an inner center of the cable battery, a separator layer formed at an outer side of the inner electrode layer, an outer electrode layer formed at an outer side of the separator layer, and an inner insulation coating layer surrounding an outer surface of the outer electrode layer; and an outer insulation coating layer formed to surround at least a portion of an outer surface of the cable battery.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: March 8, 2022
    Inventor: Hee-Gyu Kim
  • Patent number: 11264634
    Abstract: A battery is provided. The battery includes an electrode group including a positive electrode and a negative electrode, and an electrolyte including an electrolytic solution. The electrode group includes an insulating layer having an insulating material, and the electrolytic solution includes a nonaqueous solvent containing propylene carbonate in an amount of 5% by mass or more and an additive including one or more predetermined compounds.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: March 1, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Toru Odani, Tadahiko Kubota
  • Patent number: 11261762
    Abstract: A process for improving the efficiency of a steam power generation plant, the process providing utilizing steam or water from a steam cycle of a steam power plant; and supplying a steam cycle treatment to the steam cycle, thereby generating a hydrophobic coating within the steam cycle.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: March 1, 2022
    Assignee: BL Technologies, Inc.
    Inventors: Trevor James Dale, Gregory J. Robinson, James Robinson, Anthony M. Rossi, Robert Trossbach
  • Patent number: 11258140
    Abstract: Provided is a secondary battery, which can reduce defects of an uncoated portion of a current collector while ensuring a larger capacity and improving welding quality of the current collector. In one embodiment, the secondary battery includes a series of electrode assemblies each including a first electrode tab and a second electrode tab, a case accommodating the electrode assemblies, a cap plate coupled to the case at an opening in the case, a first current collector electrically connected to the first electrode tabs of the electrode assemblies, a second current collector electrically connected to the second electrode tabs of the electrode assemblies, and a first series of sub-tabs. A first sub-tab is coupled to the first electrode tab of a first electrode assembly, and a second sub-tab is coupled to the first electrode tab of a second electrode assembly. The first sub-tab is bent along a first boundary and the second sub-tab is bent along a second boundary.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: February 22, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Myung Jae Jang, Seung Ho Kwak
  • Patent number: 11258091
    Abstract: The present disclosure provides a battery and method for preparing the same. The battery includes a cell and an electrolyte; the cell includes a positive electrode plate, a negative electrode plate and a separator. Wherein in the battery, at least one surface of the positive electrode film and/or the negative electrode film is provided with protrusions, with a proviso that: 0.3?(Tc+Ta)/(Hc+Ha)?1; wherein Tc is a height of the protrusions provided on the at least one surface of the positive electrode film, Ta is a height of the protrusions provided on the at least one surface of the negative electrode film, Hc is a thickness increase of the positive electrode film when the battery has a 100% SOC, Ha is a thickness increase of the negative electrode film when the battery has a 100% SOC.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: February 22, 2022
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Limei Yang, Xiaomei Liu
  • Patent number: 11245162
    Abstract: A tab derived from an electrode body and a terminal of a battery are electrically connected to each other using a collector. The collector includes a first conductive member connected to a tab-side conductive member, and a second conductive member connected to a terminal-side conductive member. The collector opposes a sealing plate with an insulating member in between. A through hole and a thin portion provided at a peripheral edge of the through hole are provided in either one of the first conductive member and the second conductive member. The through hole and the other one of the conductive members are overlapped to join the peripheral edge of the through hole and the other one of the conductive members to each other so that the thin portion becomes a fuse. An insulating material is provided between the first conductive member and the second conductive member.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: February 8, 2022
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Ryoichi Wakimoto
  • Patent number: 11245160
    Abstract: A secondary battery and a method for manufacturing the same are provided. An electrode assembly accommodated in the secondary battery having various shapes is manufactured. In particular, a method for manufacturing a secondary battery includes an electrode stack preparation step of preparing an electrode stack which includes a first unit cell having a first area and a second unit cell having a second area that is less than the first area, and which has a structure in which the second unit cell is disposed on one surface of the first unit cell. The method further includes a curved surface formation step of pressing at least a part of an independent portion, which does not overlap the second unit cell, of the first unit cell to form a curved surface on the at least the part of the independent portion.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: February 8, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Sang Jih Kim, Sang Baek Ryu
  • Patent number: 11239516
    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: March 14, 2019
    Date of Patent: February 1, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masayuki Kimura, Junya Goto
  • Patent number: 11233297
    Abstract: The disclosure relates to a secondary battery and a battery module. The secondary battery comprises a casing, which includes a receiving hole having an opening; a top cover assembly, which includes a top cover plate connected to the casing to close the opening; an electrode assembly disposed within the receiving hole, the electrode assembly has an dimension of 0.01 mm to 1000 mm in an axial direction of the receiving hole, the electrode assembly includes two end faces opposed to each other in a first direction perpendicular to the axial direction and tabs extending from the end faces, the electrode assembly includes two or more electrode units laminated in the axial direction, and in a second direction perpendicular to the axial direction and the first direction, the dimension of the tab is smaller than the dimension of the end face; and a current collecting member electrically connected to the tab.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: January 25, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Ning Chen, Haizu Jin, Dongyang Shi, Zhenhua Li, Yuanbao Chen, Rui Yang, Fei Hu
  • Patent number: 11223089
    Abstract: A heat-resistant multi-layer composite lithium-ion battery separator, and coating device and manufacturing method for same. The battery separator comprises a base membrane (12) having two end faces provided with a coating paste, and the end faces of the base membrane (12) are both adhered with a composite layer via the coating paste. The composite layer comprises one, two, or multiple composite films (13). The composite films (13) are adhered and fixed via the coating paste. The coating device is employed during the manufacturing, and comprises a base membrane uncoiling reel (1), a coating roller (2), a composite film uncoiling mechanism, a heating and drying mechanism, and a coiling reel (6). The coating roller (2) is arranged in a one-to-one correspondence to the composite film uncoiling mechanism, and two sets of the coating roller and the composite film uncoiling mechanism are provided on two sides of the base membrane (12).
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 11, 2022
    Assignee: HEBEI GELLEC NEW ENERGY MATERIAL SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Feng Xu, Haichao Yuan, Yunfei Deng, Wenxian Ma
  • Patent number: 11205815
    Abstract: A secondary battery that includes an electrode assembly and an exterior body which houses the electrode assembly. The exterior body includes a first exterior body and a second exterior body, and a sealing edge of the exterior body is formed by a combination of the first exterior body and the second exterior body. At the sealing edge, one of the first exterior body and the second exterior body is folded back upon itself so that an end surface of the first exterior body and an end surface of the second exterior body face each other, and an insulating material is provided between the facing end surfaces of the first exterior body and the second exterior body.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: December 21, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yuji Mizuguchi
  • Patent number: 11205772
    Abstract: A method for manufacturing zinc negative electrodes includes mixing a powder including zinc with polytetrafluoroethylene to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and extruding the fibrillated dough through a die to form a ribbon. The method also includes calendering the ribbon to a target thickness to form a plaque, drying the plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate such that the current collector substrate is sandwiched between the portions to form an electrode blank, and sectioning the electrode blank into zinc negative electrodes.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: December 21, 2021
    Assignee: ZAF ENERGY SYSTEMS, INCORPORATED
    Inventors: Michael J. Gordon, Shiloh J. Williams, Allen Charkey, Andrew Souder, II
  • Patent number: 11196031
    Abstract: The present invention relates to an electrode, for reducing a difference in ductility between a non-coating portion and a coating portion of the electrode, a method for manufacturing the electrode, and a roller for manufacturing the electrode. Also, the electrode according to the present invention includes an electrode foil, a coating portion coated with an electrode active material on one surface of the electrode foil, and a non-coating portion which is disposed adjacent to the coating portion on the one surface of the electrode foil, and is not coated with the electrode active material and on which a pattern is disposed.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: December 7, 2021
    Inventors: Sang Kyun Lee, Seok Jin Kim, Cha Hun Ku
  • Patent number: 11196051
    Abstract: Provided are a positive electrode for a secondary battery which includes a positive electrode collector, a porous positive electrode active material layer disposed on a surface of the positive electrode collector and including a positive electrode active material and first carbon nanotubes, and a conductive layer disposed on a surface of the positive electrode active material layer, wherein the conductive layer includes a porous network structure formed by a plurality of second carbon nanotubes and has a porosity equal to or greater than a porosity of the positive electrode active material layer +10 vol %, and a secondary battery including the same.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: December 7, 2021
    Inventors: Young Geun Choi, Hyo Sik Kim, Joo Yul Baek, Song Taek Oh
  • Patent number: 11185948
    Abstract: A capacitor and methods of processing an anode metal foil are presented. The capacitor includes a housing, one or more anodes disposed within the housing, one or more cathodes disposed within the housing, one or more separators disposed between an adjacent anode and cathode, and an electrolyte disposed around the one or more anodes, one or more cathodes, and one or more separators within the housing. The one or more anodes each include a metal foil that includes a first plurality of tunnels through a thickness of the metal foil in a first ordered arrangement, the first ordered arrangement being a close packed hexagonal array arrangement, and having a first diameter, and a second plurality of tunnels through the thickness of the metal foil having a second ordered arrangement and a second diameter greater than the first diameter.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: November 30, 2021
    Assignee: Pacesetter, Inc.
    Inventors: Ralph Jason Hemphill, David R. Bowen, Kurt J. Erickson, Peter Fernstrom
  • Patent number: 11189861
    Abstract: Disclosed is a secondary battery obtained by rolling a cathode 31 and an anode 32 by interposing separators 33 and 34. The cathode 31 and the anode 32 have metal foils 31a and 32a, mixture layers 31b and 32b formed on the metal foils 31a and 32a, and foil exposure portion 31c and 32c that expose the metal foils 31a and 32a and are provided in one side in the width direction, respectively. The cathode 31 or the anode 32 has an insulation layer 35 that covers the mixture layers 31b and 32b, and a tip of a taper portion 32t of the mixture layer 32b, where the taper portion 32t is adjacent to the foil exposure portions 31c and 32c and has a thickness gradually reduced toward the foil exposure portions 31c and 32c, is exposed from the insulation layer 35.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: November 30, 2021
    Assignee: VEHICLE ENERGY JAPAN INC.
    Inventor: Motonari Kifune
  • Patent number: 11189889
    Abstract: The present disclosure relates to a rechargeable battery including a cell assembly including a plurality of unit cells disposed to be separated by a predetermined interval, a casing member receiving the cell assembly, a first connection part connecting the plurality of unit cells, and a second connection part disposed parallel to the first connection part and connecting the plurality of unit cells, wherein each of the plurality of unit cells includes a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: November 30, 2021
    Assignees: Samsung SDI Co., Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Da-Un Han, Minjoon Park, Jaephil Cho, Hyungyeon Cha
  • Patent number: 11183740
    Abstract: A wound battery includes an electrode assembly in which a first electrode and a second electrode are wound together via a separator, the electrode assembly being accommodated in a battery case including a bottomed tube-shaped metallic can. The first electrode has a first uncoated region defined by an exposed portion of a first current collector sheet at an end of the first current collector sheet in the axial direction of winding. The first electrode includes a first current collector lead connected to the first uncoated region. The first uncoated region is disposed on the same side as the open end of the metallic can. The second electrode includes a second current collector lead connected thereto. The first and the second current collector leads extend toward the open end of the metallic can. At least a portion of the first uncoated region is covered with an insulating layer, and the insulating layer extends beyond an end face of the first uncoated region.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: November 23, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO.
    Inventors: Tomoki Tsuji, Akira Kakinuma, Tetsuya Hayashi, Keisuke Yoneda
  • Patent number: 11183678
    Abstract: An electrode for a nonaqueous electrolyte secondary battery that is less likely to cause loss of a mixture layer and that can ensure good cycle characteristics of the battery. An electrode for a nonaqueous electrolyte secondary battery of an exemplary embodiment includes a rectangular current collector and a mixture layer that contains an active material and a binder and that is formed on the current collector. The mixture layer covers at least one edge of four linear peripheral edges of the current collector, and the binder content in the mixture layer has a maximum value at a position 0.5 mm to 5.5 mm away from the one edge in a second direction that is perpendicular to a first direction along the one edge. The maximum value is more than 100% and 240% or less of the binder content at the center in the second direction of the mixture layer.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: November 23, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yuta Fukutomi, Motoki Kinugawa, Tomofumi Yanagi
  • Patent number: 11177519
    Abstract: A secondary battery comprises an electrode assembly comprising radical units in which first and second electrodes are alternately laminated with a separator therebetween and a separation film surrounding the radical units to be repeatedly laminated, wherein the electrode assembly comprises a protection unit laminated on an outermost separation film disposed on the uppermost end or lowermost end of the separation film, the protection unit has a structure comprising a second protection electrode, a separator, and a first protection electrode which are successively laminated from the outermost separation film disposed on the uppermost end or lowermost end of the electrode assembly, the second protection electrode has a cross-sectional coating structure comprising a second collector and a second electrode active material portion coated with a second electrode active material on an inner surface of the second collector, and the inner surface is a surface facing a center of the electrode assembly.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: November 16, 2021
    Inventors: Su Hyun Yun, Kyoung Won Kang, Ki Woong Kim, Jung Shik Oh
  • Patent number: 11177521
    Abstract: A manufacturing method includes the steps of: preparing a battery case having an opening; fabricating an assembly by inserting a wound electrode body and a lid which includes a terminal connected to the wound electrode body and which closes the opening into the battery case; sandwiching the battery case by a pressing jig in a state where the opening faces downward to close a gap between the battery case and the lid; disposing the assembly so that the terminal faces upward by inverting the assembly in a state where the battery case is sandwiched by the pressing jig; and welding the lid and the battery case to each other in a state where the terminal faces upward and the battery case is sandwiched by the pressing jig.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: November 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Katsuya Shikata, Masaki Koike, Akira Tsukui
  • Patent number: 11177499
    Abstract: The present disclosure provides an assembled battery having a plurality of unit cells, spacers disposed so as to sandwich the unit cells, and restraining members that restrain the unit cells and the spacers in an array direction X. In each unit cell, a flat wound electrode body having a winding end fixed by a fixing member is accommodated in a battery case. The spacers are provided with rib portions protruding towards long side surfaces of the battery case. Flat portions of the electrode body each have a pressing region including a pressing site that opposes the rib portions, and a moderation region other than the pressing region. The pressing region includes at least the center of each flat portion in a winding axis direction, and a first pressing region over a direction along a major axis. The fixing member is disposed at the moderation region.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Minako Kondo, Keiichiro Kobayashi
  • Patent number: 11171371
    Abstract: A cylindrical secondary battery including a cylindrical battery case configured to receive an electrode assembly and an electrolytic solution, a cap assembly located on the open upper end of the cylindrical battery case, and a jelly-roll type electrode assembly configured to have a structure in which a positive electrode sheet and a negative electrode sheet are wound in the state in which a separator is interposed therebetween, wherein a protective layer, made of a material that exhibits high thermal conductivity, is formed on at least a portion of the inner surface of the cylindrical battery case, including a crimping part is provided.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: November 9, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jae Young Jang, Young Su Son, Young Kyu Lee
  • Patent number: 11158879
    Abstract: The present application provides a wound electrode assembly, comprising a first and second electrode plates having a first and second current collectors respectively, the first electrode plate has an empty foil segment having an area where the first electrode plate is bent for the first time, and the second electrode plate has a second head segment; the second current collector in the second head segment is coated with active substance on both sides, and projections of a starting end and an ending end of the empty foil segment in a thickness direction fall on the second head segment. The purpose of the present application is to provide a wound electrode assembly to effectively avoid lithium dendrite while improving the utilization of the battery material and the energy density of the battery, thereby improving the safety performance of the battery.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: October 26, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Jing Jiang, Liangzhen Xiao
  • Patent number: 11158896
    Abstract: A method for producing a button cell includes providing a first metal housing part having a first housing plane region, providing a second metal housing part having a second housing plane region, and providing a cylindrical electrode winding having a first end side, a second end side, and an outer side. The electrode winding is formed from a multi-layer assembly wound in a spiral shape about an axis. The multi-layer assembly includes a positive electrode formed from a first current collector coated with a first electrode material, a negative electrode formed from a second current collector coated with a second electrode material, and a separator disposed between the positive electrode and the negative electrode. The method further includes placing the electrode winding into the first metal housing part and forming a cell housing by assembling together the first metal housing part and the second metal housing part.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: October 26, 2021
    Assignee: VARTA MICROBATTERY GMBH
    Inventor: Winfried Gaugler
  • Patent number: 11152624
    Abstract: A positive electrode current collector, a positive electrode piece, an electrochemical device and an apparatus, where the positive electrode current collector includes a support layer and a conductive layer provided on the support layer, where a material of the conductive layer is aluminum or aluminum alloy, and a thickness D1 of the conductive layer is 300 nm?D1?2 ?m; an elongation at break B of the support layer is 10,000%?B?12%, and a volume resistivity of the support layer is greater than or equal to 1.0×10?5 ?·m; when a tensile strain of the positive electrode current collector is 2%, a square resistance growth rate T1 of the conductive layer is T1?10%. The positive electrode current collector provided in the present application can simultaneously take into account both high safety performance and electrical performance.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: October 19, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Qisen Huang, Shiwen Wang
  • Patent number: 11152638
    Abstract: The present invention relates to a secondary battery provided with a multi-tab. The secondary battery includes a jelly-roll in which an electrode and a separator are stacked to cross each other and which is wound around a central core, a plurality of multi-tab parts extending from the electrode and formed on a predetermined area at an end of the jelly-roll, a can member accommodating the jelly-roll, and an insulation member disposed adjacent to the end to insulate the can member from the jelly-roll. The insulation member includes a central hole punched in a center of the insulation member so that the central core passes therethrough and a tab hole punched around the central hole to correspond to the plurality of multi-tab parts so that the plurality of multi-tab parts pass therethrough.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: October 19, 2021
    Inventors: Hae Jin Lim, Sang Uck Kim
  • Patent number: 11145938
    Abstract: According to the present invention, a positive electrode is provided with: a positive electrode current collector; a positive electrode active material layer which contains a positive electrode active material that is configured from a lithium transition metal oxide; a protective layer which is arranged between the positive electrode current collector and the positive electrode active material layer; and a positive electrode tab which is bonded with the positive electrode current collector at a positive electrode tab bonding part where the positive electrode active material layer and the protective layer are not formed so that the positive electrode current collector is exposed. An end edge of the positive electrode active material layer facing the positive electrode tab and an end edge of the protective layer facing the positive electrode tab are arranged in different positions in the longitudinal direction of the positive electrode.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 12, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomoki Shiozaki, Daisuke Furusawa, Yuji Oura, Takahiro Takahashi, Takahito Nakayama, Hideharu Takezawa
  • Patent number: 11145939
    Abstract: A complex electrode assembly includes a first sheet-type wiring which extends in a lengthwise direction of the first sheet-type wiring and comprises a sheet region of which a width that is perpendicular to the lengthwise direction is greater than a thickness that is perpendicular to the lengthwise direction and a width direction of the first sheet-type wiring, and electrode assemblies which are arranged separate from each other in the lengthwise direction of the first sheet-type wiring and are electrically connected to the first sheet-type wiring. The first sheet-type wiring may be disposed to face an outer surface of each of the electrode assemblies.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: October 12, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Moonseok Kwon, Jaeman Choi, Kuntae Kwon, Euncheol Do, Yeonil Lee
  • Patent number: 11133560
    Abstract: The present application relates to the field of energy storage devices and, particularly, relates to an insulating tape and a Li-ion battery adopting the same. The tape includes a substrate, a hard particle layer and an adhesive layer; the substrate is of a microporous structure, the hard particle layer is stacked on the surface of the substrate, and the particle diameter of the particles of the hard particle layer is greater than the pore diameter of the microporous structure of the substrate, the adhesive layer and the hard particle layer are compositely arranged or separately arranged, the adhesive layer is stacked on a side of the hard particle layer far away from the substrate. The Li-ion battery includes the insulating tape. The Li-ion battery provided by the present application reduces the influence on energy loss of the cell caused by the arrangement of the insulating tape.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: September 28, 2021
    Assignee: DONGGUAN AMPEREX TECHNOLOGY LIMITED
    Inventors: Benzhen Li, Qingfeng Yuan
  • Patent number: 11133547
    Abstract: A rechargeable battery according to one aspect of the present invention includes: an electrode assembly that includes a first electrode and a second electrode; a case of which one side is opened, and that receives the electrode assembly; a cap assembly that includes a cap plate covering the opened portion of the case; a first current collecting member that is disposed at a lower side of the cap assembly and is thus connected with the first electrode; a sealing member that is made of an insulation material and penetrates the cap plate and the first current collecting member; and a first terminal in which a base portion fixed to an outer side of the cap plate and an extension portion formed to penetrate the sealing member such that first current collecting member is fixed to the cap assembly are formed as a single body.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: September 28, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jong-Ha Lee, Nayeon Oh, Jun-Sun Yong
  • Patent number: 11127984
    Abstract: A lithium secondary battery is provided which includes a cylindrical jelly roll in which an electrode assembly having a stacked structure including a positive electrode is wound cylindrically, wherein a semi-cylindrical first winding core and second winding core are spaced apart from each other by a predetermined interval, the positive electrode includes a non-coated portion sheet having a positive electrode tab fused thereto and a coated portion sheet, and the non-coated portion sheet and the coated portion sheet are attached by a tape to provide the positive electrode, one end of the positive electrode is positioned at the core portion of the cylindrical jelly roll, and a portion of the positive electrode having the tape is positioned around a circumference of the winding core member such that it avoids a portion where the first winding core is spaced apart from the second winding core by the predetermined interval.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: September 21, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jong-Hoon Park, Joo-Hwan Sung, Han-Gab Song, Pil-Kyu Park, Sung-Min Park
  • Patent number: 11127985
    Abstract: The present invention provides a high voltage battery cell, and specifically a high voltage battery cell including a jelly roll in which three different types of jelly roll units are stacked freely and connected in series. According to embodiments of the present invention, there is provided a high voltage battery cell which is capable of implementing various cell structures while having a high voltage, and is relatively resistant to an external impact than other typical secondary cells.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: September 21, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Hee Gyoung Kang