Blowout Type Patents (Class 429/56)
  • Patent number: 11217849
    Abstract: A battery unit for a traction battery of a motor vehicle is provided. The battery unit includes at least two battery cells arranged adjacent to one another, which each include at least one venting unit for venting the cell housing thereof. The venting units are arranged on sides of the battery cells that are facing each other, and at least two shield units are arranged between the sides of the battery cells that face each other and at a distance from one another. Each shield unit includes a shield wall having at least one opening and at least one closure element. The opening of each shield wall is arranged aligned with the venting unit of the battery cell arranged closest to this shield wall in each case. The closure element, in a closing position, in which the closure element closes the opening, is arranged fully against the shield wall and in an open position, in which the closure element at least partially reveals the opening, is at least partially separated from the shield wall.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: January 4, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Sebastian Scharner
  • Patent number: 11165088
    Abstract: A button battery and a manufacturing method thereof are provided. The button battery includes a housing with a positive electrode shell and a negative electrode shell, wherein a plurality of positive electrode plates and a plurality of negative electrode plates are provided in the housing. The positive electrode plates and negative electrode plates are stacked at intervals to form a columnar cell. The positive electrode plates and the negative electrode plates are connected to the positive electrode shell and the negative electrode shell through a current collector respectively.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: November 2, 2021
    Assignee: CHONGQING VDL ELECTRONICS CO., LTD.
    Inventors: Chuanqin Zhu, Xianmao Zhou
  • Patent number: 11145944
    Abstract: The present disclosure relates to a technical field of cells, and discloses a protection device and a battery. The protection device includes: a first connecting member; a second connecting member; a first element; and an elastic sheet. When the elastic sheet has a temperature lower than a first temperature, the elastic sheet is connected to at least one of the first connecting member and the second connecting member; when the temperature of the elastic sheet is equal to the first temperature, the elastic sheet is deformed to allow the first connecting member, the second connecting member, the elastic sheet and the first element to form a series circuit. When the protection device is not triggered, the temperature of the elastic sheet is lower than the first temperature, and the elastic sheet is connected to at least one of the first connecting member and the second connecting member.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: October 12, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Chuantao Song, Zuchao Liu, Haiyang Nan, Zhiwen Xiao, Xinru Su
  • Patent number: 11145937
    Abstract: A battery pack includes a series of battery cells, a series of bus bars electrically connecting the series of battery cells, and a terminal member. The terminal member includes a first metal layer extending from an internal connection position connected to at least one of the series of bus bars to an external connection position for supplying output power of the battery pack. The terminal member also includes a second metal layer covering the first metal layer at the external connection position. The second metal layer includes a second metal different from a first metal of the first metal layer. Therefore, the battery pack has an improved structure for stable and low-resistance connection.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: October 12, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seungwoo Yang, Eungyeong Gu, Junyoung Kim, Kyungho Cho
  • Patent number: 11101576
    Abstract: A connection assembly is provided and includes a first conductor, a second conductor and a friction stir welded connection connecting the first conductor and the second conductor, with the second conductor having a bundle of conductor wires. The friction stir welded connection is provided by a friction stir welding tool having a pin connecting a front side of the second conductor pressed onto the first conductor along a connecting direction between the first conductor and the second conductor.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: August 24, 2021
    Assignees: TE Connectivity Germany GmbH, Technical University of Ilmenau
    Inventors: Uwe Hauck, Helge Schmidt, Andre Martin Dressel, Rudi Blumenschein, Jean Pierre Bergmann, Anna Regensburg
  • Patent number: 11095002
    Abstract: A battery pack includes a series of battery cells, a series of bus bars electrically connecting the series of battery cells, and a terminal member. The terminal member includes a first metal layer extending from an internal connection position connected to at least one of the series of bus bars to an external connection position for supplying output power of the battery pack. The terminal member also includes a second metal layer covering the first metal layer at the external connection position. The second metal layer includes a second metal different from a first metal of the first metal layer. Therefore, the battery pack has an improved structure for stable and low-resistance connection.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 17, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seungwoo Yang, Eungyeong Gu, Junyoung Kim, Kyungho Cho
  • Patent number: 11094985
    Abstract: The present disclosure provides a top cover assembly of a secondary battery. The top cover assembly includes: a top cover plate and a gas exhaust valve mounted in the top cover plate. The gas exhaust valve includes a valve body, a valve sleeve and a valve cover. The valve body includes a valve part, and the valve part is provided with a gas exhaust hole that communicates with an interior of the secondary battery. The valve cover seals and is connected to the valve body to form an accommodation space. The valve sleeve is located in the accommodation space, and the valve sleeve covers the valve part. A gas exhaust passage is disposed between the valve sleeve and the valve part, the valve cover is provided with a venting hole that communicates with outside, and the gas exhaust passage communicates with the gas exhaust hole and the venting hole.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: August 17, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Xinxiang Chen, Chengyou Xing, Shoujun Huang, Yulian Zheng, Peng Wang
  • Patent number: 11081738
    Abstract: An apparatus for cooling and containing packaged battery cells includes a first structure disposed on a printed circuit board for encasing a first battery cell, the first battery cell being electrically coupled to the circuit board, the first structure includes an external surface and an internal surface defining a first cavity in which the first battery cell is located. The apparatus further includes a first seal surrounding the first battery cell between the printed circuit board coupled to the first structure. The apparatus further includes a first thermal interface material located in the first cavity, wherein a first portion of the first thermal interface material is thermally coupled to an interior surface and a second portion of the first thermal interface material is thermally coupled to the first battery cell. The apparatus further includes a plurality of heatsink fins located on the external surface of the first structure.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: August 3, 2021
    Assignee: International Business Machines Corporation
    Inventors: Robert B. Schlak, Noah Singer, John Torok, Xiaojin Wei, Mitchell Zapotoski
  • Patent number: 11063328
    Abstract: A conductive member (61) is disposed near a side of the sealing plate (2) facing the inside of a battery with a first insulating member (10) disposed therebetween. The conductive member (61) has a conductive-member opening portion (61f) at a side facing the electrode assembly. An inserting portion (7b) of a positive electrode terminal (7) is inserted through a third terminal-receiving hole (61c) in the conductive member (61) and connected to the conductive member (61). The conductive-member opening portion (61f) of the conductive member (61) is sealed by a deformation plate (62), and the deformation plate (62) is connected to a first positive-electrode current collector (6a), which is electrically connected to positive electrode plates. The conductive member (61) includes a pressing projection (61e) that projects toward the first insulating member (10) from a portion thereof that faces the first insulating member (10).
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: July 13, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Hiroyuki Yamada
  • Patent number: 11050127
    Abstract: A battery includes an electrode body and an internal terminal attached to the electrode body. The electrode body includes positive electrode sheets, negative electrode sheets, and separators. The positive electrode sheets and the negative electrode sheets are alternately stacked in a stacking direction, with each separator interposed between associated adjacent ones of the positive electrode sheets and the negative electrode sheets. The positive electrode sheets and the negative electrode sheets each include a collector foil. At least either portions of the collector foils of the positive electrode sheets or the negative electrode sheets are protruded beyond the separators in one direction. The protruded portions of the collector foils are piled in a stack in the stacking direction. The internal terminal includes a connector connected to the stack of the protruded portions of the collector foils. The stack of the protruded portions is bent around a base end of the protruded portions of the collector foils.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: June 29, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Koike, Yoshinori Shibata, Kousuke Suzuki
  • Patent number: 11024922
    Abstract: Disclosed herein is a cap assembly disposed on an open upper end part of a cylindrical can of a battery, the battery being configured to have an electrode assembly mounted in the cylindrical can, the cap assembly including a safety vent configured to rupture in order to exhaust gas when the interior pressure of the battery reaches a predetermined pressure limit, an upwardly-protruding cap plate disposed on the upper part of the safety vent, the cap plate having a through-opening configured to receive the gas exhausted therethrough, a current interrupt member attached to the lower end of the safety vent, the current interrupt member configured to interrupt electric current when the interior pressure of the battery reaches the predetermined pressure limit, and a guide member attached to the inside of the cap plate, the guide member being configured to prevent escape of a ruptured portion of the safety vent.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 1, 2021
    Inventors: Sang Gu Ji, Sang Uck Kim, Cheon Hee Bok, Myung An Lee, Geun Young Park, Yong Han Kim, Da Na Kim
  • Patent number: 11011812
    Abstract: A secondary battery includes a diaphragm which is disposed on a current path between a current collector plate connected to a wound electrode group in a battery container and an external terminal, deforms when an internal pressure of the battery container increases, and breaks the current path. The diaphragm has a convex portion which protrudes to the current collector plate. The current collector plate has a through-hole into which the convex portion is inserted. An inner wall portion of the through-hole and a side wall portion of the convex portion facing each other are welded.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: May 18, 2021
    Assignee: Vehicle Energy Japan Inc.
    Inventors: Kazuaki Urano, Keisuke Sawada, Shou Saimaru, Naoki Kojima
  • Patent number: 10998539
    Abstract: A secondary battery is disclosed. According to the present invention, when an internal pressure exceeding a certain level occurs, current may be interrupted to stop an operation of the secondary battery, thereby preventing the secondary battery from being ignited or exploded by the increase in internal pressure of the secondary battery and improving safety of the secondary battery.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: May 4, 2021
    Inventors: Sang Hun Kim, Yong Kim, Yong Su Choi, Hyung Kyun Yu, Soo Ji Hwang, Na Yoon Kim, Min Hyeong Kang
  • Patent number: 10971780
    Abstract: A device can include a processor; memory accessible by the processor; a battery bay that includes a first surface; a battery package disposed in the battery bay and operatively coupled to the processor, where the battery package includes a second surface; and materials disposed between the first surface and the second surface, where the materials include an adhesive and a thermoplastic.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: April 6, 2021
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Bouziane Yebka, Philip John Jakes, Tin-Lup Wong
  • Patent number: 10950829
    Abstract: A sealing body of a cylindrical battery, including: a sealing plate with a through-hole formed at a center of a metallic disk and a thin-walled portion formed into a groove in a planar surface of the disk, the sealing plate mounted to a cylindrical battery can having a closed bottom, so as to seal an opening of the battery can, the battery can doubling as an electrode current collector of either a positive or negative electrode and housing a power generating element; an electrode terminal of another of the positive or negative electrode, the electrode terminal including a shaft portion inserted into the through-hole and fitted to the sealing plate; and a sealing gasket made of resin and interposed between the shaft portion and the through-hole. The thin-walled portion has an arc shape and is not formed along a circle concentric with an outer periphery of the sealing plate.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: March 16, 2021
    Assignee: FDK CORPORATION
    Inventor: Kanji Urushihara
  • Patent number: 10910627
    Abstract: The disclosure is related to a battery formation system and probe supporting structure thereof. The battery formation system includes a base, a holder, a probe supporting structure and at least one probe. The base is adaptive to bear at least one battery, and the holder is located on one side of the base. The probe supporting structure is disposed on the holder. The probe supporting structure has an air flow passage and at least one air discharge channel connected to each other, and an extension direction of the air flow passage intersects an extension direction of the at least one air discharge channel. The at least one probe is disposed on the probe supporting structure, and a probing end of the at least one probe and an air outlet of the at least one air discharge channel are located at a same side of the probe supporting structure.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: February 2, 2021
    Assignee: CHROMA ATE INC.
    Inventors: Hsu-Chang Hsu, Kuo-Yen Hsu, Kuan-Chen Chen, Chuan-Tse Lin
  • Patent number: 10873066
    Abstract: The present disclosure relates to a vent for a secondary battery top cover, a top cover assembly, a secondary battery and a vehicle. The vent includes a flat base and a protrusion protruding outward with respect to flat base. The protrusion has a main nick and at least one branch nick connected to at least one end of the main nick. An angle formed between the main nick and the branch nick is more than zero. When the pressure inside the case increases excessively, gas causes stress concentration at the protrusion such that the vent is torn along the main nick and the at least one branch nick, thereby releasing the gas in the case, reducing explosion risk of the secondary battery, and improving safety of the secondary battery.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: December 22, 2020
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Xiang Li, Peng Wang, Chengyou Xing, Rulai Cai
  • Patent number: 10873060
    Abstract: The present invention relates to a battery can, in particular for a rechargeable lithium-ion battery, configured to receive an electrode assembly formed by winding an anode and a cathode that are isolated by a separator, wherein the battery can is configured to be closed by cap assembly. The battery can comprises a cylindrical can body for containing the electrode assembly and has a first end forming a base and a peripheral side wall extending from the base in a longitudinal direction to a second end of the can body comprising an opening, wherein the side wall of the can body ends in an end edge at the second end, and wherein the side wall of the can body is adapted to be crimped inwardly at the second end of the second end to attach a cap assembly that is inserted into the can body opening to the can body. According to the invention, the end edge of the peripheral side wall is formed in an inwardly extending loop into an annular shoulder surrounding the opening.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: December 22, 2020
    Assignee: H&T Rechargeable LLC
    Inventors: Volker Seefeldt, Florian Schröder, Patrick Hefer
  • Patent number: 10862079
    Abstract: The present disclosure relates to an insulation plate for a secondary battery and a secondary battery. The insulation plate includes two side portions and a top portion between the two side portions. Each of the two side portion includes a transverse covering portion and a longitudinal covering portion that are used to cover a transverse transition part and a longitudinal transition part of an electrode assembly of the secondary battery, respectively. During placing the electrode assembly into a case of the secondary battery, since transition parts of the electrode assembly are covered by the insulation plate, the transition parts of the electrode assembly are prevented from directly contacting the case, thereby reducing the possibility of being scratched and rubbed by the opening of the case. Therefore, electrical connection between negative and positive electrode plates of the electrode assembly is avoided and thus the reliability of the secondary battery is improved.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: December 8, 2020
    Inventor: Xiang Li
  • Patent number: 10847772
    Abstract: Apparatus, methods and systems are provided for thermal runaway and gas exhaust management for high power batteries. A battery module has a plurality of cell-containing carriers stacked on top of one another to form a cell stack having a front end and a rear end. A duct extends through the cell stack between the front end and the rear end for collecting escaped gases from the battery cells. A self-closing one-way pressure relief valve is located in the duct toward the rear end of the cell stack. The pressure relief valve connects to a piping system for carrying the gases to a remote location where the gases can be safely released and dispersed.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: November 24, 2020
    Assignee: Sterling PBES Energy Solutions Ltd.
    Inventor: Johannes Christian Kruger
  • Patent number: 10819049
    Abstract: Provided is a welded structure in which a voltage detection terminal (21) plated with tin and a busbar (25) plated with nickel are welded, the busbar (25) having a thickness greater than that of the voltage detection terminal (21) and being formed with a protrusion (25c) which protrudes toward the voltage detection terminal (21) on a part of a surface facing the voltage detection terminal (21) at the time of being welded with the voltage detection terminal (21).
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: October 27, 2020
    Assignee: YAZAKI CORPORATION
    Inventor: Yuta Matsunaga
  • Patent number: 10811650
    Abstract: A secondary battery includes: an electrode assembly including a positive electrode plate and a negative electrode plate; an exterior housing that has an opening and houses the electrode assembly; and a sealing plate (2) that seals the opening. The exterior housing and the sealing plate (2) form a battery case. A deformable member (19) that deforms when the pressure inside the battery case reaches a prescribed value or higher and a gas release valve (18) that breaks when the pressure inside the battery case reaches a prescribed value or higher to release gas inside the battery case to the outside of the battery case are provided in the sealing plate (2). A metallic reinforcing member (30) is connected to the inner surface of the sealing plate (2).
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: October 20, 2020
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Hiroyuki Yamada
  • Patent number: 10811738
    Abstract: A battery modules includes a battery cell assembly including at least one battery cell, and at least one cooling fin configured to contact the at least one battery cell and to be exposed on opposite side parts of the battery cell assembly and a side part perpendicular to the opposite side parts, a first end plate including at least one first insulating member mounted contacting the at least one cooling fin exposed on the opposite side parts of the battery cell assembly, and configured to support the opposite side parts of the battery cell assembly, a second end plate coupled to the first end plate, and configured to support the side part of the battery cell assembly, a cooling plate between the second end plate and the battery cell assembly, and at least one second insulating member arranged between the cooling plate and the at least one cooling fin.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: October 20, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Nam-In Kim, Jae-Hyun Seo, Young-Sop Eom, Bo-Hyon Kim, Hyun-Young Cho
  • Patent number: 10804515
    Abstract: Batteries having vents are disclosed. An example battery includes a housing, including: a first terminal and a second terminal. The first terminal includes a cover. The cover includes at least one line of weakness therein. The line of weakness is structured to form an opening when a threshold pressure is satisfied within the housing to enable gas to vent from the housing through the opening. A filter is positioned within the housing and adjacent the cover. The filter has an aperture structured to enable the gas to vent from the housing and to deter solid material housed within the housing from exiting the opening when the threshold pressure is satisfied.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: October 13, 2020
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Mark Ashbolt, Alexander Shelekhin, Brien Merrill, Oleg Podoprigora, Robert S. Ferrin
  • Patent number: 10797295
    Abstract: A secondary battery includes an electrode assembly, a case, a cap plate, and a terminal plate. The electrode assembly includes a separator between first and second plates. The case includes the electrode assembly and has an opening. The cap plate seals the opening of the case and has a hole. The terminal plate is on the cap plate and includes a discharge hole aligned with the hole in the cap plate. A short circuit area with a vent may be included in the hole of the cap plate.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jiho Lee, Mincheol Bae, Ikjae Jeong, Kyounghwan Noh, Hongkeun Choi
  • Patent number: 10763460
    Abstract: Provided are a case assembly, a prismatic secondary battery, and a method of fabricating the prismatic secondary battery. The prismatic secondary battery includes: an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first and second electrode plates; a case formed of a first material, wherein an electrode assembly accommodation cavity is formed in the case to accommodate the electrode assembly, and an opening through which the electrode assembly is to be inserted is formed in a portion of the case; and a cap plate sealing the opening. A gas discharge hole is formed in the case to discharge gas generated during a pre-charging operation. The gas discharge hole is sealed with a gas seal formed of a second material.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: September 1, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Kangkook Jung
  • Patent number: 10752736
    Abstract: The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH-terminated oligo- or polyalkylene ethers in the presence of an alkanesulfonic acid as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: August 25, 2020
    Assignee: BASF SE
    Inventors: Lothar Engelbrecht, Wolfgang Peter, Andreas Gernandt, Clemens Auschra, Ralf Knischka, Reiner Kranwetvogel
  • Patent number: 10714795
    Abstract: Techniques for monitoring an internal pressure of a battery cell, whereby a membrane that is part of an outer shell of the battery cell is used as an element of capacitive-based or inductive-based sensor circuitry in order to measure a change of capacitance or inductance under deformation of the membrane from the internal pressure of the battery cell. The change of capacitance or inductance may in turn be used to derive a value for the internal pressure of the battery cell.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: July 14, 2020
    Assignee: Infineon Technologies AG
    Inventors: Guenter Schwarzberger, Jens Barrenscheen, Goran Keser, Christopher Roemmelmayer
  • Patent number: 10686177
    Abstract: There is disclosed an electrode cartridge for use in a hermetic zinc secondary battery comprising a separator structure including a separator exhibiting hydroxide ion conductivity and water impermeability; a counter member liquid-tightly sealed to the separator structure so as to form an internal space and constituting an open-top water impermeable case together with the separator structure; and an electrode that is accommodated in the internal space of the water impermeable case and is a negative electrode containing zinc and/or zinc oxide or a positive electrode. According to the present invention, there is provided an electrode built-in component that can reliably isolate the positive and negative electrodes from each other with a hydroxide ion conductive separator, in the form of an electrode cartridge that is easy to handle and manufacture and that is more advantageous for assembling a stacked-cell battery, while reducing the number of sealing joints.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: June 16, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Yuichi Gonda, Naohito Yamada, Kenshin Kitoh
  • Patent number: 10673038
    Abstract: Provided herein are battery cells for battery packs in electric vehicles. A battery cell can include a housing. The housing can have a body region, a neck region, and a head region. The body region can include an electrolyte, anode, and cathode. The battery cell can include a sealing element disposed in the head region. The battery cell can include two conductive layers and an insulation layer disposed within the sealing element. The first conductive layer can include a positive terminal to couple with a first wire connected to the cathode. The first conductive layer can define a first opening to pass a second wire. The second conductive layer can include a negative terminal to couple with the second wire connected to the anode. The second conductive layer can define a second opening to pass the first wire. The insulation layer can be disposed between the two conductive layers.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: June 2, 2020
    Assignees: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD., SF MOTORS, INC.
    Inventor: Jeremy Andrew Elsberry
  • Patent number: 10665836
    Abstract: A pouch-type secondary battery includes an electrode assembly equipped with an electrode tab, an electrode lead connected to the tab, a pouch housing accommodating and sealing the electrode assembly such that the lead is exposed partly and equipped with a sealing zone at the edge thereof, a first sealant interposed between the top surface of the lead and the inner surface of the housing and a second sealant interposed between the lower surface of the lead and the inner surface of the housing. The lead includes a joint portion joined to the tab, a terminal portion exposed to the outside of the housing and a fuse portion therebetween. The fuse portion includes a separating groove separated from the sealing zone toward the joint portion and including at least a horizontal slit and a breaking portion connected to the separating groove for separating the terminal portion from the joint portion.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: May 26, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Seung-Su Cho, Jin-Young Kim, Gi-Su Jeong, Won-Seok Jeong, Seung-Don Choi, Won-Pill Hwang
  • Patent number: 10658638
    Abstract: A rechargeable battery according to an exemplary embodiments includes: an electrode assembly; a case configured to accommodate the electrode assembly and having an opening at one side thereof; and a cap assembly including: a cap plate configured to close and seal the opening of the case, the cap plate having a vent portion and defining a vent opening that is configured to discharge an internal gas generated inside the case to the outside of the case, the vent portion comprising: a vent plate configured to close and seal the vent opening; and a bending portion that is raised from the vent plate; and an electrode terminal at an upper portion of the cap plate and electrically connected to the electrode assembly.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: May 19, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hyun-Soo Lee
  • Patent number: 10658632
    Abstract: Battery housings and batteries are presented for accommodating swelling of an electrode assembly. In one aspect, a battery includes an electrode assembly that includes a cathode and an anode. The battery also includes a receptacle that includes at least one feedthrough disposed through one or more sides of the receptacle. A lid is sealed to the receptacle. The receptacle, the at least one feedthrough, and the lid form a sealed volume in which the electrode assembly and an electrolyte are disposed. The lid is configured to displace from a first position to a second position in response to a swelling of the electrode assembly within the sealed volume. The receptacle is configured to strain less than the lid during the swelling of the electrode assembly. The second position of the lid may correspond to an expanded volume of the electrode assembly that is 15% greater than an initial volume.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: May 19, 2020
    Inventors: Qingcheng Zeng, Donald G. Dafoe, Kenzo Nagai
  • Patent number: 10651441
    Abstract: A battery cell of a venting structure using taping is disclosed. The battery cell includes a battery case including a first case and a second case, at least one of the first and second cases being provided with a receiving part for receiving the electrode assembly, thermally bonded edges for sealing the receiving part being provided outside the receiving part, a positive electrode lead and a negative electrode lead protruding outward from the battery case, and an electrode assembly received in the battery case, the electrode assembly having electrode tabs protruding from one end thereof, the electrode tabs being coupled to the positive electrode lead and the negative electrode lead, wherein seal reinforcement tapes are attached to some of the thermally bonded edges so as to surround outer ends of the some thermally bonded edges.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: May 12, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Seong Yoon Lim, Ji Hyun Kim
  • Patent number: 10644366
    Abstract: A method is provided for producing an assembly for an energy supply system, having an energy storage module and a plate-shaped cooling element. Between a contact side of the energy storage module and a contact side of the cooling element, a deformable, adhesive heat conducting layer is applied. Subsequently, the energy storage module and the cooling element are pressed together, wherein by way of the heat conducting layer, a dimensionally stable adhesive connection between the energy storage module and the cooling element is produced, which permanently connects the energy storage module to the cooling element. By way of the adhesive connection, the contact side of the energy storage module is bonded with the contact side of the cooling element in a planar, material-fit, durable, and dimensionally stable manner such that the energy storage module and the cooling element form a structural unit.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: May 5, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Florian Landerer, Sebastian Siering, Fabian Burkart
  • Patent number: 10629879
    Abstract: The present disclosure relates to a battery module, including: a housing having two oppositely disposed openings and a hollow chamber communicating with the two openings in a first direction; a battery stack disposed in the hollow chamber and comprising two or more battery cells, wherein each battery cell has first and second vent plates disposed opposite to each other in the first direction; a first end plate corresponding to one of the two openings and connected to the housing, wherein the first end plate is provided with a module output pole electrically connected to the battery stack and a deformable plate disposed opposite to the module output pole, and the deformable plate faces the first vent plate; a second end plate corresponding to the other of the two openings and connected to the housing; and a blocking member disposed between the second end plate and the battery stack.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 21, 2020
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Feng Qin, Zhi Wang, Lin Ma, Hua Zhang, Xiaofan Wang, Xinfu Xiao
  • Patent number: 10559784
    Abstract: An insulating molding (1) for a housing of at least one battery cell is disclosed, specifically for a housing of at least one lithium-ion battery cell, wherein, on at least one molding sidewall (3a, 3b) of the insulating molding (1), a depression (5) is configured, which is constituted by means of a reduced wall thickness, in order to reduce the force acting on the battery cell.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: February 11, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Kai-Uli Striegel, Martin Gerlach, Thomas Kretschmar, Timo Kegel
  • Patent number: 10559798
    Abstract: The disclosure relates to a battery module comprises a housing, a battery stack, a cover plate assembly, and a guiding component. The battery stack is disposed in a containing chamber of the housing. The cover plate assembly comprises a plate, a deformable plate and a module output, the plate is arranged to close the opening, the deformable plate is connected to the plate and is deformable in a thickness direction of the plate, the module output is connected to the plate and is disposed opposite to the deformable plate, the module output and the battery stack are electrically connected. The guiding component is disposed between the cover plate assembly and the battery stack, and comprises a guiding channel and an exhaust port, and the gas released after the first vent plate is opening flows to the deformable plate through the exhaust port and the guiding channel.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: February 11, 2020
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Feng Qin, Zhi Wang, Lin Ma, Hua Zhang, Zhiyi You, Runyong He
  • Patent number: 10516151
    Abstract: The present application provides a top cover of power battery, including top cover plate, first electrode unit and second electrode unit, the first electrode unit includes insulation piece, conductive plate, deformable plate and sealing piece, the top cover plate is provided with deformable plate connecting hole and fixing hole, the deformable plate seals the deformable plate connecting hole, the insulation piece is provided with top cover plate connecting portion and conductive plate connecting portion, the insulation piece is fixed underneath the top cover plate through cooperation of top cover plate connecting portion and fixing hole, the conductive plate is insulated from and fixed with the top cover plate through the conductive plate connecting portion, the conductive plate is electrically connected with the deformable plate, the sealing piece seals path from the fixing hole to interior of the power battery passing through gap between insulation piece and top cover plate.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: December 24, 2019
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Quankun Li, Pinghua Deng, Peng Wang, Jian Guo, Lingbo Zhu, Yongshou Lin
  • Patent number: 10505166
    Abstract: An energy storage apparatus includes one or more energy storage devices, and an outer housing that houses the one or more energy storage devices. The outer housing includes an outer housing main body, a cover that closes an opening of the outer housing main body, an outer terminal disposed on the cover, and a communication part defining a passageway allowing a communication between an interior and an exterior of the outer housing. The communication part includes a functional membrane. A ventilation hose for passage of a gas, which has passed the functional membrane, is connected to an end of the communication part.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: December 10, 2019
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Toshiki Kusunoki, Osamu Ushijima
  • Patent number: 10483521
    Abstract: A sealed battery includes a battery outer case, a collector terminal, an outwardly exposed terminal, and a current shut-off mechanism configured to cut off a conductive path from the collector terminal to the outwardly exposed terminal when the internal pressure of the battery outer case exceeds a predetermined pressure. The current shut-off mechanism includes a connection plate with a vent hole, and a shut-off valve including a reversing portion. A joint region in the connection plate is in contact with a surface, of the reversing portion, that faces the inner side of the battery outer case. A thermal-spray joint portion configured to cover a border between the joint region and the reversing portion is provided, such that the shut-off valve is joined to the connection plate via the thermal-spray joint portion.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 19, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiro Ono, Yuta Nemoto
  • Patent number: 10461295
    Abstract: A separator includes a support formed in a grid, and a porous ion migration inhibition layer with which the grid of the support is coated and which has a plurality of pores formed therein, wherein each of the plurality of pores of the porous ion migration inhibition layer is formed to have a size smaller than the size of an electromigration-promoting ion contained in an electrolyte, whereby the electromigration-promoting ion does not pass through the porous ion migration inhibition layer. In addition, potassium is prevented from migrating to the carbon layer, thereby preventing potassium hydroxide from being precipitated even when oxygen is moved to a positive electrode side during charging. Furthermore, when the separator is applied to a separator of an alkaline battery, potassium hydroxide may be prevented from being precipitated during charging, thereby achieving an effect that an alkaline primary battery can be used as a secondary battery.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: October 29, 2019
    Assignee: REKRIX CO., LTD.
    Inventors: Byoung Hoon Ryou, Jae Kyung Kong
  • Patent number: 10439195
    Abstract: A power storage device includes a case accommodating an electrode assembly and having a lid, a current interrupting device, and an insulating member. The electrode assembly has a tab-side end face opposed to an inner face of the lid. The current interrupting device has a device end face opposed to the tab-side end face. The insulating member has an insulating end face opposed to the tab-side end face. A distance from the inner face to the device end face in a state where the current interrupting device is positioned closest to the inner face is defined as a first dimension. A distance from the inner face to the insulating end face in a state where the insulating member is positioned closest to the inner face is defined as a second dimension. The first dimension is smaller than the second dimension.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 8, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takayuki Hirose, Motoaki Okuda, Hiroyasu Nishihara, Kojiro Tamaru
  • Patent number: 10439184
    Abstract: A gas release valve has a valve body that is made from rubber or resin and closes a communication passage providing communication between an outside and an inside of a battery case. In an inner communication passage, which is positioned on an inner side of the battery case with respect to a valve body in the communication passage, a moisture absorber is arranged in a state where gas in the battery case is able to pass inside the inner communication passage.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: October 8, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tomohiro Matsuura
  • Patent number: 10411232
    Abstract: A non-aqueous electrolyte secondary battery (10) proposed herein includes an electrode assembly (40), an electrolyte solution (80), and a battery case (20). The battery case (20) accommodates the electrode assembly (40) and the electrolyte solution (80). A membrane (201) capable of selectively releasing a hydrogen gas is provided on a portion of the battery case (20) so as to separate the interior and the exterior of the battery case (20).
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: September 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Abe, Ryuta Sugiura
  • Patent number: 10388980
    Abstract: The present invention provides a cap assembly mounted on an opening of a can, the cap assembly comprising: a top cap; a safety element disposed on a lower portion of the top cap; a safety vent disposed on a lower portion of the safety element and having a cut part; a down cap disposed on a lower portion of the safety vent; a gasket surrounding edges of the top cap, the safety element, the safety vent, and the down cap and mounted on the opening of the can; and a lifting guide part disposed between the safety vent and the down cap to lift the safety vent while being expanded by a high-temperature gas transferred from the inside of the can and thereby to cut the cut part so that the high-temperature gas is released to the outside.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: August 20, 2019
    Assignee: LG CHEM, LTD.
    Inventor: Han Gab Song
  • Patent number: 10340500
    Abstract: A pouch battery having improved overcharging safety includes a CID interrupting an electrical connection between an electrode assembly and a lead tab when the pouch is expanded. When the pouch is expanded, the CID discharges gas generated inside the pouch to the outside, and at the time of overcharging a secondary battery, the CID interrupts a flow of current introduced into the secondary battery and discharges the gas generated due to the overcharging to the outside of the pouch, thereby reducing an ignition risk and improving the overcharging safety.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: July 2, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Min Choi, Ik Kyu Kim, Seung Ho Ahn, Hong Seok Min
  • Patent number: 10333121
    Abstract: A secondary battery is provided with an electrode assembly, a case for accommodating the electrode assembly, and a pressure-release valve for releasing the pressure in the case to the outside of the case. The pressure-release valve has a groove including an intersection point. An opening width at a portion of the groove near the intersection point is wider than an opening width at a portion of the groove on the opposite side of the intersection point.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: June 25, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Akihisa Matsudo, Motoaki Okuda, Masami Tomioka
  • Patent number: 10312490
    Abstract: A battery pack according to an exemplary aspect of the present disclosure includes, among other things, an enclosure that houses at least one battery cell and a vent device comprised of a polymeric material and adapted to discharge battery vent byproducts vented by the battery cell to a location external to the enclosure while preventing ingress of environmental fluids into the enclosure.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: June 4, 2019
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Patrick Daniel Maguire
  • Patent number: 10283742
    Abstract: Provided is a top cover structure for power battery, including a first electrode assembly, a second electrode assembly, a top cover plate electrically connected with the first electrode assembly, and a deformable plate attached to the top cover plate; the second electrode assembly includes a second electrode terminal, a second connecting block, a second insulating piece in which a via-hole and an gas-guide hole are defined, an upper sealing piece arranged between the second insulating piece and the second connecting block and including a sealing area for deforming space and a sealing area for electrode terminal, and a lower sealing piece arranged between the second insulating piece and the top cover plate and enclosing the via-hole for deformable plate. The sealing area for deforming space encloses the via-hole and the gas-guide hole, the sealing area for electrode terminal enclose the second electrode terminal.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: May 7, 2019
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chengyou Xing, Jian Guo