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公开(公告)号：US20180034095A1
公开(公告)日：2018-02-01
申请号：US15637076
申请日：2017-06-29
Applicant: Sanyo Electric Co., Ltd.
Inventor： Shinichirou Yoshida , Yohei Muroya , Hiroshi Maesono , Hiroyuki Inoue
Abstract: A secondary battery including an electrode body that includes a positive electrode plate and a negative electrode plate, an outer body that houses the electrode body, a metal sealing plate that seals an opening of the outer body, a positive electrode collector electrically connected to the positive electrode plate and the sealing plate, a negative electrode external terminal connected to the negative electrode plate through a negative electrode collector. In the secondary battery, a first projection and a second projection are formed on a surface of the sealing plate on a battery inner side, the positive electrode collector includes a first opening and a cut-out, the first projection is disposed in the first opening, the first projection and an edge portion of the first opening is welded and connected to each other, and the second projection is disposed in the cut-out.
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公开(公告)号：US11342639B2
公开(公告)日：2022-05-24
申请号：US16217774
申请日：2018-12-12
Applicant: SANYO Electric Co., Ltd. , Panasonic Corporation
Inventor： Yohei Muroya , Ryoichi Wakimoto , Hiroyuki Inoue , Keisuke Shimizu
IPC: H01M50/572 , H01M50/578 , H01M50/155 , H01M50/543 , H01M10/0525 , H01M50/15 , H01M50/528
Abstract: A secondary battery includes an electrode body that includes a positive electrode plate and a negative electrode plate; an outer body that houses the electrode body; a sealing plate that is made of metal and seals an opening of the outer body; and a positive electrode terminal that is electrically connected to the positive electrode plate. At least part of the positive electrode terminal is disposed on the battery outer side with respect to the sealing plate. An external insulating member made of resin is disposed between the sealing plate and the positive electrode terminal. The conduction path between the positive electrode plate and the positive electrode terminal is provided with a current interrupting mechanism. An electrically insulating, heat-resistant layer is disposed between the positive electrode terminal and the sealing plate.
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公开(公告)号：US20190103596A1
公开(公告)日：2019-04-04
申请号：US16142454
申请日：2018-09-26
Applicant: SANYO Electric Co., Ltd.
Inventor： Yohei Muroya , Hiroyuki Inoue
Abstract: A secondary battery includes an electrode body that includes a positive-electrode sheet and a negative-electrode sheet, a prismatic exterior body that accommodates the electrode body, a metallic sealing plate that seals an opening of the prismatic exterior body, and a positive-electrode current collector that is electrically connected to the positive-electrode sheet and the sealing plate. The positive-electrode current collector includes a base that faces the sealing plate and a lead that is disposed on an end portion of the base. A projection is formed on the sealing plate. The projection is fitted in a connection opening that is formed in the base. The projection and the base are welded to each other.
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公开(公告)号：US10424809B2
公开(公告)日：2019-09-24
申请号：US15637076
申请日：2017-06-29
Applicant: Sanyo Electric Co., Ltd.
Inventor： Shinichirou Yoshida , Yohei Muroya , Hiroshi Maesono , Hiroyuki Inoue
Abstract: A secondary battery including an electrode body that includes a positive electrode plate and a negative electrode plate, an outer body that houses the electrode body, a metal sealing plate that seals an opening of the outer body, a positive electrode collector electrically connected to the positive electrode plate and the sealing plate, a negative electrode external terminal connected to the negative electrode plate through a negative electrode collector. In the secondary battery, a first projection and a second projection are formed on a surface of the sealing plate on a battery inner side, the positive electrode collector includes a first opening and a cut-out, the first projection is disposed in the first opening, the first projection and an edge portion of the first opening is welded and connected to each other, and the second projection is disposed in the cut-out.
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Patent Agency Ranking
公开(公告)号：US20180062152A1
公开(公告)日：2018-03-01
申请号：US15666713
申请日：2017-08-02
Applicant: Sanyo Electric Co., Ltd.
Inventor： Shinichirou Yoshida , Tomokazu Yamanaka , Hiroyuki Inoue
IPC: H01M2/34 , H01M10/0587
CPC classification number: H01M2/348 , H01M2/347 , H01M10/0585 , H01M10/0587 , H01M2200/103
Abstract: A prismatic secondary battery includes an electrode assembly, a casing having an opening, a sealing plate sealing the opening, a terminal connected to an electrode that constitutes the electrode assembly, and a current collector connected to the electrode. The current collector has a base portion located along the sealing plate and a lead portion extending from an end portion of the base portion toward a bottom of the casing. The base portion is welded to the terminal. The lead portion is connected to a substrate exposure portion of the electrode and has a fusible portion that is fusible by an excessive current and that has a smallest cross section compared to the remaining portion. The fusible portion has a cross section equal to or smaller than 92% of a cross section of the base portion that passes through an end portion of a weld-connection portion closer to the lead portion.
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公开(公告)号：US20190189998A1
公开(公告)日：2019-06-20
申请号：US16217774
申请日：2018-12-12
Applicant: SANYO Electric Co., Ltd. , Panasonic Corporation
Inventor： Yohei Muroya , Ryoichi Wakimoto , Hiroyuki Inoue , Keisuke Shimizu
IPC: H01M2/34
CPC classification number: H01M2/345 , H01M10/0525
Abstract: A secondary battery includes an electrode body that includes a positive electrode plate and a negative electrode plate an outer body that houses the electrode body; a sealing plate that is made of metal and seals an opening of the outer body; and a positive electrode terminal that is electrically connected to the positive electrode plate. At least part of the positive electrode terminal is disposed on the battery outer side with respect to the sealing plate. An external insulating member made of resin is disposed between the sealing plate and the positive electrode terminal. The conduction path between the positive electrode plate and the positive electrode terminal is provided with a current interrupting mechanism. An electrically insulating, heat resistant layer is disposed between the positive electrode terminal and the sealing plate.
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公开(公告)号：US10147931B2
公开(公告)日：2018-12-04
申请号：US15666713
申请日：2017-08-02
Applicant: Sanyo Electric Co., Ltd.
Inventor： Shinichirou Yoshida , Tomokazu Yamanaka , Hiroyuki Inoue
IPC: H01M2/34 , H01M10/0587
Abstract: A prismatic secondary battery includes an electrode assembly, a casing having an opening, a sealing plate sealing the opening, a terminal connected to an electrode that constitutes the electrode assembly, and a current collector connected to the electrode. The current collector has a base portion located along the sealing plate and a lead portion extending from an end portion of the base portion toward a bottom of the casing. The base portion is welded to the terminal. The lead portion is connected to a substrate exposure portion of the electrode and has a fusible portion that is fusible by an excessive current and that has a smallest cross section compared to the remaining portion. The fusible portion has a cross section equal to or smaller than 92% of a cross section of the base portion that passes through an end portion of a weld-connection portion closer to the lead portion.
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公开(公告)号：US10680230B2
公开(公告)日：2020-06-09
申请号：US15926188
申请日：2018-03-20
Applicant: SANYO Electric Co., Ltd. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shinichirou Yoshida , Hiroyuki Inoue , Eiji Okutani , Takashi Tokunaga , Toshihiro Takada , Takenori Tsuchiya
Abstract: A battery includes: an electrode body; an electrode current collector; a sealing body; an external terminal; an electrical conductor connected to the external terminal; a deforming plate sealing an opening of the electrical conductor, electrically connected to the electrical conductor and to the current collector, and deformed when an internal pressure reaches a predetermined pressure; and a first insulator between the deforming plate and the current collector. The current collector includes a base, and a lead connecting to the electrode body. First to fourth fasteners fasten the base and the first insulator. Between the first and second fasteners, the base is electrically connected to the deforming plate. The second fastener is closer to the lead than the first fastener. The second fastener is closer to a connection between the deforming plate and the electrode current collector than a position of the first insulator supported toward the sealing body.
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公开(公告)号：US20180277823A1
公开(公告)日：2018-09-27
申请号：US15926188
申请日：2018-03-20
Applicant: SANYO Electric Co., Ltd. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shinichirou Yoshida , Hiroyuki Inoue , Eiji Okutani , Takashi Tokunaga , Toshihiro Takada , Takenori Tsuchiya
CPC classification number: H01M2/345 , H01M2/0217 , H01M2/0277 , H01M2/0426 , H01M2/06 , H01M2/08 , H01M2/263 , H01M2/30 , H01M10/0431 , H01M2220/20
Abstract: A battery includes: an electrode body; an electrode current collector; a sealing body; an external terminal; an electrical conductor connected to the external terminal; a deforming plate sealing an opening of the electrical conductor, electrically connected to the electrical conductor and to the current collector, and deformed when an internal pressure reaches a predetermined pressure; and a first insulator between the deforming plate and the current collector. The current collector includes a base, and a lead connecting to the electrode body. First to fourth fasteners fasten the base and the first insulator. Between the first and second fasteners, the base is electrically connected to the deforming plate. The second fastener is closer to the lead than the first fastener. The second fastener is closer to a connection between the deforming plate and the electrode current collector than a position of the first insulator supported toward the sealing body.
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