Blowout Type Patents (Class 429/56)
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
  • Patent number: 10283741
    Abstract: A secondary battery which can improve safety is provided. The secondary battery includes an electrode assembly, a can accommodating the electrode assembly and a cap assembly coupled to a top portion of the can, wherein the cap assembly comprises a cap-up, a safety vent installed under the cap-up, a cap-down installed under the safety vent, an insulator interposed between the safety vent and the cap-down, and a sub-plate positioned on a bottom surface of the cap-down, and an insulation layer is formed on a top surface of the cap-down.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: May 7, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jihyun Kim, Hyunki Jung, Hyorim Bak, Jungho Ha
  • Patent number: 10256456
    Abstract: A rectangular secondary battery according to the present invention includes an electroconductive member, a first insulating member, a pressure-sensitive circuit breaker that includes an inversion plate and a positive electrode current collector. The electroconductive member has a first outer side surface and a second outer side surface that face away from each other. The first insulating member includes a pair of short side walls. One of the short side walls is located outside of the first outer side surface and presses the first outer side surface toward the second outer side surface. The other short side wall is located outside of the second outer side surface and presses the second outer side surface toward the first outer side surface.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: April 9, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Hiromasa Nishijima, Yasuhiro Yamauchi
  • Patent number: 10256455
    Abstract: There is provided a secondary battery comprising an electrode assembly including a first electrode plate having a first electrode tab, a second electrode plate having a second electrode tab and a separator between the first electrode plate and the second electrode plate, a case including a body accommodating the electrode assembly, a cap plate covering a top portion of the body, and a bottom plate covering a bottom portion of the body, a first electrode terminal electrically connected to the first electrode tab, a second electrode terminal electrically connected to the second electrode tab through the case, and a connection plate electrically connected to the second electrode tab and configured to bend away from the bottom plate, the connection plate being on the bottom plate.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 9, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seungyeol Yoo, Seokyoon Yoo, Yongwoo Jung, Seungwon Shin, Eunha Kim, Youngjin Yoon, Backgun Kim, Wooksu Lee
  • Patent number: 10211434
    Abstract: Each battery module of a battery pack includes a stack of serially connected battery cells, a gas discharge duct extending in a cell arrangement direction to guide gas discharged from a relief valve of each battery cell to an outside of the battery module, the gas discharge duct having a first connection opening at one end and a second connection opening at the other end, a first connection terminal piece having an inner end portion electrically connected to an electrode of one of the battery cells at one end of the serial connection and an outer end portion disposed inside the first connection opening, and a second connection terminal piece having an inner end portion electrically connected to an electrode of another one of the battery cells at another end of the serial connection and an outer end portion disposed inside the second connection opening.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: February 19, 2019
    Assignees: YAZAKI CORPORATION, DENSO CORPORATION
    Inventors: Yoshiaki Ichikawa, Katsunori Sato, Hidehiro Takasugi, Hirokuni Koike, Hisato Inoue, Hiroyoshi Yamamoto
  • Patent number: 10164228
    Abstract: The battery is sealed by a sealing member including a safety valve for exhausting the gas generated in the battery to the outside of the battery when the pressure in the battery is increased. A part of the sealing member is formed of a member having a melting point lower than that of high-temperature gas generated in the abnormal time and having a ratio of an area of an opening of the battery case to an area of a gas exhaust hole is 3.0×10?5 or more and 9.1×10?3 or less.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: December 25, 2018
    Assignee: SANYO ELECTRIC CO., LTD.
    Inventors: Keisuke Shimizu, Masato Fujikawa, Tomohiko Yokoyama, Kyosuke Miyata, Koki Inoue
  • Patent number: 10147912
    Abstract: Provided are a battery cell and a battery module including the same. The battery cell is provided with a vent part, which is a predetermined region of a sealing part of a case having a width narrower than that of the other region thereof, thereby making it possible to easily discharge gas.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: December 4, 2018
    Assignee: SK Innovation Co., LTD.
    Inventors: Heechan Park, Sang Bum Kim
  • Patent number: 10147916
    Abstract: A battery cell includes: an electrode assembly; a pouch case accommodating the electrode assembly therein; and an electrode lead including an outer lead protruding to an outside of the pouch case and an inner lead disposed between the outer lead and the electrode assembly, accommodated in the pouch case, bent plural times in a direction in which it connects the electrode assembly and the outer lead to each other, and cut by expansion force of the pouch case.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: December 4, 2018
    Assignee: Hyundai Motor Company
    Inventors: Seung Ho Ahn, Ik Kyu Kim, Woo Jin Shin, Hong Seok Min, Sung Min Choi, Jung Je Woo, Jung Young Cho, Se Jung Oh, Hoi Suk Han
  • Patent number: 10115946
    Abstract: A secondary battery according to one or more embodiments includes an electrode assembly including a first electrode plate including a first electrode tab, a second electrode plate including a second electrode tab, and a separator between the first electrode plate and the second electrode plate, a case including a body accommodating the electrode assembly, a cap plate at an upper portion of the body, and a bottom plate at a lower portion of the body, an electrode terminal including a first electrode terminal electrically connected to the first electrode tab and extending through the cap plate, and a second electrode terminal electrically connected to the second electrode tab via the case and on the cap plate, and a first safety vent in the bottom plate, wherein an exterior surface of the bottom plate defines a gas exhaust groove in communication with the first safety vent.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: October 30, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Minhyung Guen
  • Patent number: 10109823
    Abstract: A battery pack includes an enclosure assembly including a tray and a cover system secured relative to the tray. The cover system includes a first cover and a second cover that overlap one another. At least one of the first cover and the second cover includes a stepped design. Another battery pack includes an insert received within a tray and adapted to establish a first compartment and a second compartment within the tray. A first cover is positioned to cover the first compartment and a second cover is positioned to cover the second compartment.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: October 23, 2018
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jeffrey Matthew Haag, Brock Dunlap, Joseph Todd White, Scott Benedict
  • Patent number: 10084177
    Abstract: A rechargeable battery includes an electrode assembly including a first electrode and a second electrode; a case accommodating the electrode assembly; a cap plate coupled to the case; a terminal electrically connected to the first electrode and protruding out of the cap plate; a short-circuit member at a short-circuit opening in the cap plate and configured to deform to electrically connect the first electrode and the second electrode; and a blocking member below the short-circuit opening and having a plurality of openings.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: September 25, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Min-Hyung Guen
  • Patent number: 10050241
    Abstract: A rechargeable battery includes an electrode assembly comprising electrodes having coated and uncoated regions and being located at opposite sides of a separator; a case accommodating the electrode assembly; a cap plate sealing the case and having terminal holes through which electrode terminals coupled to the uncoated regions extend; a gasket between each electrode terminal and the cap plate; and a first insulating plate between the cap plate and the electrode assembly and fastened to the gaskets.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: August 14, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Kyoon Park, Yong-Chul Seo, Seung-Ho Kwak
  • Patent number: 10020477
    Abstract: An exemplary assembly includes an enclosure wall of an enclosure that houses at least one battery cell, and a vent of the enclosure wall. The vent is configured to move from a first position to a second position in response to an increase in a pressure within an interior of the enclosure. The vent in the second position provides a passage to discharge battery vent byproducts from the interior. An exemplary battery pack venting method includes moving a vent of an enclosure wall from a first position to a second position in response to an increase in a pressure within an interior of an enclosure having the enclosure wall. The vent in the second position provides a passage to discharge battery vent byproducts from the interior.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: July 10, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Olivia Lomax, Patrick Daniel Maguire, Stephen Liptak
  • Patent number: 9960407
    Abstract: A sealed battery includes a filling hole, and a gasket and a blind rivet that seal the filling hole. A tapered surface that is inclined toward an inside of a battery case is formed around the filling hole of the battery case. The filling hole is sealed by the gasket and the blind rivet by the blind rivet plastic deforming.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: May 1, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Nakayama, Takashi Harayama, Kazuyuki Kusama
  • Patent number: 9899651
    Abstract: A power storage device includes a case and a pressure release valve. The pressure release valve includes arcuate portions, intersecting grooves, and arcuate grooves that are connected to the ends of the intersecting grooves and extend along the arcuate portions. When imaginary straight lines extend along the intersecting grooves and intersect the circumferential edge of the pressure release valve, a first region, which is surrounded by the imaginary straight lines and the circumferential edge of the pressure release valve, and a second region, which is surrounded by the imaginary straight lines and the circumferential edge of the pressure release valve, are defined. The part of the first region that is in contact with the arcuate portions is larger than the part of the second region that is in contact with the arcuate portions. The area of the first region is greater than the area of the second region.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: February 20, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Akihisa Matsudo, Motoaki Okuda, Masami Tomioka, Hiroyasu Nishihara, Mikiya Kurita
  • Patent number: 9871233
    Abstract: A rechargeable battery includes an electrode assembly comprising electrodes having coated and uncoated regions and being located at opposite sides of a separator; a case accommodating the electrode assembly; a cap plate sealing the case and having terminal holes through which electrode terminals coupled to the uncoated regions extend; a gasket between each electrode terminal and the cap plate; and a first insulating plate between the cap plate and the electrode assembly and fastened to the gaskets.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: January 16, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Kyoon Park, Yong-Chul Seo, Seung-Ho Kwak
  • Patent number: 9865864
    Abstract: A rechargeable battery that simplifies a structure that implements an external short circuit and that reduces a production cost is provided. The rechargeable battery includes: an electrode assembly that is formed by spiral-winding a first electrode and a second electrode that are disposed at respective surfaces of a separator interposed therebetween; a case that houses the electrode assembly; a cap plate that closes and seals an opening of the case; a first electrode terminal that is connected to the first electrode and that is installed in an insulation state in the cap plate; a second electrode terminal that is connected to the second electrode and that is electrically connected to the cap plate; and a vent plate that is installed in a vent hole of the cap plate and that is short-circuited with the first electrode terminal when the vent hole is opened.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: January 9, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chi-Young Lee, Myung-Jae Jang, Seung-Ho Kwak
  • Patent number: 9859547
    Abstract: A current interrupting device of a sealed battery includes a conductive member that is electrically connected to an external terminal of a battery case; a collector terminal that is arranged inside the battery case; and a reversing plate that is interposed between the conductive member and the collector terminal, and that electrically cuts off the conductive member from the collector terminal by deforming in response to an increase in pressure inside the battery case. An inner peripheral surface of the conductive member is joined to an outer peripheral surface of the reversing plate. An upper surface of the reversing plate does not contact the conductive member regardless of an activation of the current interrupting device.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: January 2, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Nagata, Shigeru Takashiro
  • Patent number: 9831479
    Abstract: The battery is sealed by a sealing member including a safety valve for exhausting the gas generated in the battery to the outside of the battery when the pressure in the battery is increased. A part of the sealing member is formed of a member having a melting point lower than that of high-temperature gas generated in the abnormal time and having a ratio of an area of an opening of the battery case to an area of a gas exhaust hole is 3.0×10?5 or more and 9.1×10?3 or less.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: November 28, 2017
    Assignee: SANYO ELECTRIC CO., LTD.
    Inventors: Keisuke Shimizu, Masato Fujikawa, Tomohiko Yokoyama, Kyosuke Miyata, Koki Inoue
  • Patent number: 9819003
    Abstract: A rechargeable battery includes an electrode assembly including first and second electrodes; a case accommodating the electrode assembly; a cap plate having a short-circuit opening; a first terminal coupled to the first electrode; a second terminal coupled to the second electrode; and a short-circuit member at the cap plate, corresponding to the short-circuit opening, and configured to deform to electrically couple the first and second electrodes; and a short-circuit protrusion at the second terminal and configured to contact the short-circuit member, wherein a surface roughness of the short-circuit protrusion is greater than that of the cap plate.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: November 14, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Min-Hyung Guen, Yong-Chul Seo