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公开(公告)号：US20230261346A1
公开(公告)日：2023-08-17
申请号：US18167885
申请日：2023-02-13
发明人： Yukinobu MIYAMURA
IPC分类号： H01M50/566 , H01M50/103 , H01M50/557 , H01M50/562
CPC分类号： H01M50/566 , H01M50/103 , H01M50/557 , H01M50/562
摘要： A battery disclosed herein includes a terminal. The terminal includes: a first conductive member having a plate shape; a second conductive member including a flange electrically connected to the first conductive member; a fastener mechanically securing the first conductive member and the flange of the second conductive member to each other; and a metal joint metal-joining the first conductive member and the flange of the second conductive member to each other at a location away from the fastener. The metal joint includes a first connection region and a second connection region. The second connection region is located closer to a center of the flang than the first connection region.
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公开(公告)号：US20230039913A1
公开(公告)日：2023-02-09
申请号：US17876532
申请日：2022-07-29
IPC分类号： H01M50/46 , H01M10/04 , H01M50/184 , H01M50/469 , H01M50/466 , H01M50/538
摘要： A battery is provided in which an electrode tab group is hardly damaged. In the herein disclosed battery, an electrode body includes an electrode body main body part, a positive electrode tab group protruding from a first end part, and a negative electrode tab group protruding from a second end part. The positive electrode tab group and the negative electrode tab group are folded and bent to make tip ends of electrode tabs respectively configuring these tab groups be arranged along a second side wall of the battery case. A portion of the folded and bent electrode tab is joined to the electrical collector body of the same pole. The battery includes a spacer between the electrode body main body part and the second side wall, and the spacer is to regulate movement of the electrode body.
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公开(公告)号：US20220263140A1
公开(公告)日：2022-08-18
申请号：US17672585
申请日：2022-02-15
IPC分类号： H01M10/0587 , H01M50/103 , H01M10/0585 , H01M50/54 , H01M50/533
摘要： An electrode assembly has a positive electrode plate and a negative electrode plate. The battery case accommodates the electrode assembly. A tab portion is provided on at least one of the positive electrode plate and the negative electrode plate and extends on a side of the electrode assembly. A current collector is connected to the tab portion. An insulating sheet is disposed between the electrode assembly and the battery case and has a fold-over portion between the battery case and the current collector. The current collector faces a side surface of the battery case with the tab portion being folded. A joined portion at which portions of the insulating sheet are joined to each other is formed in the fold-over portion.
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公开(公告)号：US20240145786A1
公开(公告)日：2024-05-02
申请号：US18470422
申请日：2023-09-20
IPC分类号： H01M10/0587 , H01M50/11 , H01M50/183 , H01M50/593 , H01M50/636
CPC分类号： H01M10/0587 , H01M50/11 , H01M50/183 , H01M50/593 , H01M50/636
摘要： A battery disclosed herein includes a wound electrode body, a battery case having a substantially rectangular first surface, and an electrolytic solution injection hole formed on the first surface of the battery case, a sealing member for sealing the electrolytic solution injection hole, and an insulating member fixed to the first surface. The electrolytic solution injection hole is formed in a position that does not overlap with vertexes of the curved portions of the plurality of wound electrode bodies. Herein, a part of the insulating member is disposed in a valley portion surrounded by a surface linking the vertexes of the adjacent wound electrode bodies and the curved surface of the curved portion of the adjacent wound electrode bodies, and a part of the sealing member is disposed in the valley portion.
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公开(公告)号：US20230395953A1
公开(公告)日：2023-12-07
申请号：US18167894
申请日：2023-02-13
发明人： Shota YAMAMOTO , Yukinobu MIYAMURA
IPC分类号： H01M50/557 , H01M50/566 , H01M50/567 , H01M50/528
CPC分类号： H01M50/557 , H01M50/566 , H01M50/567 , H01M50/528 , H01M10/0525
摘要： A battery disclosed herein includes a terminal. The terminal includes: a first conductive member; a second conductive member electrically connected to the first conductive member; a fastener mechanically securing the first conductive member and the second conductive member to each other; and a metal joint metal-joining the first conductive member and the second conductive member to each other. The metal joint includes a fused and solidified portion. The fused and solidified portion includes a first sub-portion formed in the first conductive member, and a second sub-portion formed in the second conductive member. When viewed in cross section, an area of the second sub-portion is 35% or less of an area of the first sub-portion.
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公开(公告)号：US20240283065A1
公开(公告)日：2024-08-22
申请号：US18582367
申请日：2024-02-20
IPC分类号： H01M50/176 , H01G11/10 , H01G11/30 , H01G11/78 , H01M50/209 , H01M50/507 , H01M50/557 , H01M50/562
CPC分类号： H01M50/176 , H01G11/10 , H01G11/78 , H01M50/209 , H01M50/507 , H01M50/557 , H01M50/562 , H01G11/30
摘要： A power storage device disclosed herein includes a first electrode terminal including a first conductive member, a second conductive member, and a metal joined part. The metal joined part includes a first region in which a first metal occupies 70 mass % or more and a second region in which a second metal occupies 70 mass % or more. The first region includes a region that exists on the first conductive member side relative to a border surface and a first protrusion region that protrudes toward the second conductive member relative to the border surface, and the second region includes a region that exists on the second conductive member side relative to the border surface and a second protrusion region that protrudes toward the first conductive member relative to the border surface.
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