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公开(公告)号：US10461369B2
公开(公告)日：2019-10-29
申请号：US15842296
申请日：2017-12-14
发明人： Nobuyasu Negishi , Tatsuya Hashimoto , Koichi Kawamura , Tatsuya Shinoda , Naoki Iwamura , Koichi Takeshita , Hirokiyo Mamyoda
IPC分类号： H01M4/02 , H01M10/28 , H01M2/02 , H01M2/06 , H01M2/20 , H01M2/26 , H01M2/30 , H01M2/34 , H01M10/04
摘要： According to one embodiment, a battery includes a flat-shaped electrode group, a package member and a terminal section. The package member includes a stainless steel-made first package having a flange at an opening and a stainless steel-made second package. The electrode group is stored in a space formed by welding the flange of the first package to the second package. The terminal section includes a through-hole that is open to the first package, a ring-shaped rising portion that extends from a periphery of the through-hole toward an inside of the package member, a ring-shaped member that is arranged on an outer surface of the rising portion, an insulation gasket, and an external terminal. The external terminal is fixed to the first package by caulking.
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公开(公告)号：US20180108949A1
公开(公告)日：2018-04-19
申请号：US15842296
申请日：2017-12-14
发明人： Nobuyasu Negishi , Tatsuya Hashimoto , Koichi Kawamura , Tatsuya Shinoda , Naoki Iwamura , Koichi Takeshita , Hirokiyo Mamyoda
CPC分类号： H01M10/286 , H01M2/02 , H01M2/06 , H01M2/20 , H01M2/26 , H01M2/30 , H01M2/34 , H01M10/04 , H01M10/0413
摘要： According to one embodiment, a battery includes a flat-shaped electrode group, a package member and a terminal section. The package member includes a stainless steel-made first package having a flange at an opening and a stainless steel-made second package. The electrode group is stored in a space formed by welding the flange of the first package to the second package. The terminal section includes a through-hole that is open to the first package, a ring-shaped rising portion that extends from a periphery of the through-hole toward an inside of the package member, a ring-shaped member that is arranged on an outer surface of the rising portion, an insulation gasket, and an external terminal. The external terminal is fixed to the first package by caulking.
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公开(公告)号：US10418612B2
公开(公告)日：2019-09-17
申请号：US15218111
申请日：2016-07-25
发明人： Tatsuya Shinoda , Tatsuya Hashimoto , Koichi Kawamura , Nobuyasu Negishi , Koichi Takeshita , Yasuaki Murashi
IPC分类号： H01M2/26 , H01M10/04 , H01M10/0525 , H01M10/0587 , B23K101/36 , B23K20/10
摘要： A secondary battery according to one embodiment includes, an electrode group which is a cathode and an anode wound with a separator being interposed therebetween, a first lead having a first welding surface, a second lead having a second welding surface which is bent with respect to a winding axial direction of the electrode group, a first current collecting tab which is extended from one end of the electrode group on the winding axial direction, and welded onto the first welding surface of the first lead, a second current collecting tab which is extended from the other end of the electrode group on the winding axial direction, and welded onto the second welding surface of the second lead, a first terminal connected to the first lead, and a second terminal connected to the second lead.
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公开(公告)号：US09960393B2
公开(公告)日：2018-05-01
申请号：US15223934
申请日：2016-07-29
CPC分类号： H01M2/08 , F16J15/08 , F16J15/10 , F16J15/104 , H01M2/06 , H01M2/26 , H01M2/30 , H01M10/0525
摘要： A battery disclosed herein includes a container member housing an electrode body and a lead, a gasket, an external terminal, and a restraining member. The container member includes a terminal-connecting part having a thickness of 0.3 mm or less. The terminal-connecting part includes a through hole including a rising part. The gasket includes a hollow shaft inserted into the rising part. The external terminal includes a terminal shaft. The terminal shaft includes a diameter-reduction part. The restraining member restrains at least a part of the diameter-reduction part of the terminal shaft via the diameter-reduction part of the rising part and the shaft of the gasket. The inclination angle of the rising part is larger than the inclination angle of the terminal shaft.
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公开(公告)号：US12040486B2
公开(公告)日：2024-07-16
申请号：US17474532
申请日：2021-09-14
发明人： Keigo Hoshina , Dai Yamamoto , Tetsuro Kano , Masanori Tanaka , Yuki Watanabe , Nobuyasu Negishi
CPC分类号： H01M4/525 , H01M4/366 , H01M4/505 , H01M2004/021 , H01M2004/027 , H01M2004/028
摘要： According to one embodiment, an electrode is provided. The electrode includes a current collector and an active material-containing layer formed on the current collector. The active material-containing layer contains a lithium nickel cobalt manganese composite oxide and a lithium cobalt composite oxide. Pore size distribution obtained by mercury intrusion porosimetry for the active material-containing layer has a first peak top indicating a highest intensity I1 within a pore size range of from 0.1 μm to 1 μm and a second peak top indicating an intensity I2 which is a second highest intensity after the highest intensity I1 within the pore size range of from 0.1 μm to 1 μm. A pore size at the first peak top is smaller than a pore size at the second peak top.
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公开(公告)号：US10559806B2
公开(公告)日：2020-02-11
申请号：US15835521
申请日：2017-12-08
发明人： Nobuyasu Negishi , Tatsuya Hashimoto , Naoki Iwamura , Tatsuya Shinoda , Koichi Takeshita , Yasuaki Murashi
摘要： According to one embodiment, a battery is provided. The battery includes an electrode body, a lead, a container member, and a terminal. The container member includes a main part and a terminal-connecting part adjacent to the main part. The electrode body is housed in the main part of the container member. The lead is electrically connected to the electrode body. The lead is housed in the terminal-connecting part of the container member. The terminal is electrically connected to the lead. The terminal is provided on the terminal-connecting part. A thickness of the main part of the container member is larger than a thickness of the terminal-connecting part of the container member.
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公开(公告)号：US10468679B2
公开(公告)日：2019-11-05
申请号：US15454454
申请日：2017-03-09
IPC分类号： H01M4/485 , H01M4/525 , H01M4/505 , H01M10/0525 , H01M10/0569 , H01M10/06 , H01M16/00 , H01M4/02 , H01M6/50
摘要： According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode includes a positive electrode active material layer including a lithium nickel cobalt manganese composite oxide. The negative electrode includes a negative electrode active material layer including a spinel type lithium titanate. The nonaqueous electrolyte has an ion conductivity of not less than 7 mS/cm and not more than 10 mS/cm at 25° C. A capacity ratio p/n is within a range of not less than 1.4 and not more than 1.8. A thickness ratio Tp/Tn is within a range of not less than 1.05 and less than 1.3. A ratio Pp/Pn is within a range of not less than 0.55 and less than 0.8.
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公开(公告)号：US11309603B2
公开(公告)日：2022-04-19
申请号：US16807225
申请日：2020-03-03
发明人： Tatsuya Shinoda , Nobuyasu Negishi
IPC分类号： H01M50/148 , H01M50/147 , H01M50/543
摘要： A square secondary battery of an embodiment includes an outer can formed in a shape of a bottomed cylinder having a cross-sectional shape of a substantially quadrangular shape, the outer can having an opening, a power generation element contained in the outer can, and a lid having a positive electrode terminal and a negative electrode terminal, the lid covering the opening of the outer can. Two or more convex portions exist on each of one or more surfaces of a side surface of an outer surface of the outer can, a bottom surface of the outer surface of the outer can, and a surface having the positive electrode terminal and the negative electrode terminal of an outer surface of the lid.
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公开(公告)号：US20190097202A1
公开(公告)日：2019-03-28
申请号：US16136479
申请日：2018-09-20
发明人： Masahito Morone , Hirofumi Yamamoto , Tatsumi Matsuo , Motohiro Itou , Shinya Sato , Kazuto Kuroda , Ryo Okabe , Norihiro Kaneko , Minoru Gyoda , Yuji Sasaki , Kota Asami , Nobuyasu Negishi
摘要： According to an embodiment, a battery module includes, for example, a plurality of battery cells, a first chassis, and a connection member. The battery cells are aligned in a first direction. The first chassis includes a plurality of first compartments in which the battery cells are housed one by one, and at least one second compartment that is partitioned in the first direction. The connection member includes a body that is housed in the second compartment; a pair of connection terminals that is mounted on a first face of the body and is electrically connectable to the electrodes of the battery cells via a conductive member, the first face facing in a second direction intersecting with the first direction; and a conductor that extends across the pair of connection terminals.
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公开(公告)号：US10522812B2
公开(公告)日：2019-12-31
申请号：US15835521
申请日：2017-12-08
发明人： Nobuyasu Negishi , Tatsuya Hashimoto , Naoki Iwamura , Tatsuya Shinoda , Koichi Takeshita , Yasuaki Murashi
摘要： According to one embodiment, a battery is provided. The battery includes an electrode body, a lead, a container member, and a terminal. The container member includes a main part and a terminal-connecting part adjacent to the main part. The electrode body is housed in the main part of the container member. The lead is electrically connected to the electrode body. The lead is housed in the terminal-connecting part of the container member. The terminal is electrically connected to the lead. The terminal is provided on the terminal-connecting part. A thickness of the main part of the container member is larger than a thickness of the terminal-connecting part of the container member.
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