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公开(公告)号：US20230094372A1
公开(公告)日：2023-03-30
申请号：US17911384
申请日：2021-02-22
发明人： Jun FUKUDA
IPC分类号： H01M50/547 , H01G11/80 , H01G11/10 , B60L50/64 , H01M50/284 , H01M10/613 , H01M10/625 , H01M50/271
摘要： An electricity storage device has an electricity storage element sealed in a package member of a laminate material including a thermal adhesive resin layer. The package member has a housing portion having a substantially rectangular opening and formed to have a predetermined depth; a flange portion protruding outward from the circumferential edge of the opening; and a lid portion covering the opening and thermally bonded to the flange portion. The electricity storage element has a pair of electrode terminals protruding respectively from opposite longer-side edges of the opening and held between the flange portion and the lid portion.
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公开(公告)号：US20230087851A1
公开(公告)日：2023-03-23
申请号：US17841277
申请日：2022-06-15
申请人： Apple Inc.
IPC分类号： H01M50/533 , H01M50/103 , H01M50/119 , H01M50/547 , H01M50/593 , H01M50/124
摘要： The disclosed technology relates to a looped tab for a battery cell. The looped tab may extend from a set of layers. The looped tab may comprise a first portion adjacent to the set of layers and a second portion adjacent to an inner sidewall of the enclosure. The first portion may comprise a covered portion, the covered portion comprising a metal surface and an oxide coating covering the metal surface, the oxide coating configured to prevent contact between a layer in the set of layers or the enclosure and the metal surface of the covered portion.
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公开(公告)号：US20220407191A1
公开(公告)日：2022-12-22
申请号：US17779389
申请日：2020-11-12
发明人： Daisuke ITO , Yukihiro MIZONOBE , Kensuke WATANABE
IPC分类号： H01M50/531 , H01M50/107 , H01M50/188 , H01M50/547 , H01M10/0525
摘要： This electrical storage device comprises: an electrode body; a bottomed cylindrical outer can; a sealing plate to which a positive electrode terminal and a negative electrode terminal are attached; and a functional part placed near the positive electrode terminal or the negative electrode terminal on the inner surface of the sealing plate. The electrode body has a positive electrode tab group for which a plurality of positive electrode tabs are laminated, and a negative electrode tab group for which a plurality of negative electrode tabs are laminated, and each tab group functions as a spring that connects the electrode body and the sealing plate. Of the positive electrode tab group and the negative electrode tab group, the spring constant of one tab group near the functional part is greater than the spring constant of the other tab group.
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公开(公告)号：US20220255205A1
公开(公告)日：2022-08-11
申请号：US17591664
申请日：2022-02-03
发明人： Masashi KATO
IPC分类号： H01M50/593 , H01M50/204 , H01M50/224 , H01M50/249 , H01M50/547 , H01M10/625 , H01M10/655 , H01M50/528
摘要： Provided is a battery pack capable of advantageously maintaining conduction. In the embodiment of the battery pack disclosed herein includes a stacked body in which a plurality of unit cells are stacked in a predetermined stacking direction, and a housing that accommodates the stacked body. An insulating member having an insulating property is arranged inside the housing. Here, a positive-negative electrode joint in which at least a part of the positive electrode terminal of one unit cell and at least a part of the negative electrode terminal of the other unit cell are joined to each other is present between the unit cells adjacent in the stacking direction, and the positive-negative electrode joints are embedded with the insulating member in order to prevent a liquid from penetrating from the outside.
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公开(公告)号：US20220209345A1
公开(公告)日：2022-06-30
申请号：US17561749
申请日：2021-12-24
发明人： Yuki SATO , Yozo UCHIDA , Hideki ASADACHI , Syoichi TSUCHIYA , Masataka ASAI , Tsuyoshi ASANO , Masahiro UCHIMURA , Nozomi TATEYAMA
IPC分类号： H01M50/195 , H01M10/0525 , H01M50/147 , H01M50/547 , H01M50/188
摘要： A lid body includes a terminal member of at least one of a positive electrode and a negative electrode, a sealing plate including an attachment hole for attaching the terminal member, and a sealing material containing a thermoplastic resin and an inorganic filler. The terminal member is inserted into the attachment hole and attached to the sealing plate in a state in which the sealing material is joined to a peripheral portion of the attachment hole. Here, as the inorganic filler, an inorganic substance having a volume change rate of 20% or less after being immersed for 7 days in a test electrolyte, which is prepared at 65° C., and which contains 1200 ppm of water and 1 M of LiPF6, and moreover in which a volume ratio of a solvent thereof satisfies a relationship of ethylene carbonate:diethyl carbonate:dimethyl carbonate=1:1:1, is used.
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公开(公告)号：US20210359461A1
公开(公告)日：2021-11-18
申请号：US17207310
申请日：2021-03-19
发明人： Fukinuki Masatoshi , Xiang Zhao , Muyang Ni
IPC分类号： H01R13/533 , H01R13/631 , H01R13/502 , B25F5/02 , H01M50/247 , H01M50/244 , H01M50/204 , H01M50/547
摘要： An electric tool includes a body, a battery pack, and a guide portion including a primary guide unit and a secondary guide unit. The primary guide unit and the secondary guide unit each extend in a preset direction and the primary guide unit and the secondary guide unit each are arranged in the longitudinal direction between a connecting portion of the battery pack and a mounting portion of the body. The primary guide unit and the secondary guide unit implement rigid mating. The primary guide unit includes primary mating surfaces mating with each other in the transverse direction, the secondary guide unit includes secondary mating surfaces mating with each other in the transverse direction, and a ratio of a width of a transverse gap between the primary mating surfaces to a width of a transverse gap between the secondary mating surfaces is greater than or equal to 0.3.
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公开(公告)号：US20210296746A1
公开(公告)日：2021-09-23
申请号：US17341594
申请日：2021-06-08
发明人： Ryoichi Wakimoto , Hiroyuki Yamada
IPC分类号： H01M50/593 , H01M50/547 , H01M50/588 , H01M50/553
摘要： 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).
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公开(公告)号：US20210249696A1
公开(公告)日：2021-08-12
申请号：US17237514
申请日：2021-04-22
发明人： Takeshi Maniwa , Osamu Chikagawa
IPC分类号： H01M10/0585 , H01M10/0562 , H01M50/547
摘要： A solid-state battery that includes: at least one battery building block including: a positive electrode layer having a positive electrode active material layer; a negative electrode layer having a negative electrode active material layer; and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer. The positive electrode layer has a first buffer portion at or adjacent to at least one end of the positive electrode layer, the first buffer portion having a density lower than a density of the positive active material layer in portions other than the at least one end thereof, and the negative electrode layer has a second buffer portion at or adjacent to at least one end of the negative electrode layer, the second buffer portion having a density lower than a density of the negative active material layer in portions other than the at least one end thereof.
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公开(公告)号：US20210143513A1
公开(公告)日：2021-05-13
申请号：US17253539
申请日：2019-06-21
发明人： Yoshimasa TOSHIOKA
IPC分类号： H01M50/547 , H01M50/204
摘要： An embodiment includes at least one energy storage device, an end member arranged in a first direction with the energy storage device, and an external connection terminal fixed to the end member and forming a conduction path between an external device and the energy storage device, in which the external connection terminal has a conduction surface that conducts with the energy storage device and is fixed to the end member in a normal direction of the conduction surface.
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公开(公告)号：US20210126321A1
公开(公告)日：2021-04-29
申请号：US17139814
申请日：2020-12-31
发明人： Kaijie YOU , Linggang ZHOU , Dongyang SHI , Yanhuo XIANG , Yongshou LIN , Fei HU
IPC分类号： H01M50/507 , H01M50/207 , H01M50/342 , H01M50/547 , H01M50/244 , H01M10/0587
摘要： The present disclosure provides a battery module, including a first battery cell arrangement structure, a second battery cell arrangement structure and a bus bar array. With battery cells stacked in a horizontal direction, a first battery cell arrangement structure and a second battery cell arrangement structure are stacked in a vertical direction, and a first bus bar of a bus bar array is used to sequentially connect the battery cells of the first battery cell arrangement structure and the second battery cell arrangement structure. As a result, a total positive electrode and a total negative electrode of a battery module are located at two ends of the battery module, which greatly reduces the possibility of a short circuit of the battery module and improves the safety of the battery module.
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