公开(公告)号：US20240266676A1

公开(公告)日：2024-08-08

申请号：US18566995

申请日：2022-06-06

申请人： APB CORPORATION

发明人： Kazuya MINAMI ,  Kenichi KAWAKITA ,  Toshiaki YAMAGUCHI ,  Ryosuke KUSANO ,  Hideaki HORIE

IPC分类号： H01M50/474 ,  H01M4/66 ,  H01M10/04 ,  H01M10/52

CPC分类号： H01M50/474 ,  H01M4/668 ,  H01M10/0472 ,  H01M10/52

摘要： Provided is a battery pack in which close contact between resin current collectors of vertically adjacent unit cells can be maintained. A battery pack includes: two or more unit cells including a stacked unit consisting of a set of a positive electrode resin current collector, a positive electrode active material layer, a separator, a negative electrode active material layer, and a negative electrode resin current collector stacked sequentially, a stacked body of the above-described two or more unit cells being enclosed in an exterior body; and an integrated insulator covering across boundaries between the above-described unit cells on at least one of the side surfaces of the above-described stacked body.

公开(公告)号：US20230033163A1

公开(公告)日：2023-02-02

申请号：US17786298

申请日：2020-12-17

申请人： APB CORPORATION

发明人： Shogo ISOMURA ,  Yasuhiro TSUDO ,  Yuya SHIMOMOTO ,  Kenichi KAWAKITA ,  Kazuya MINAMI ,  Shun KUDO ,  Yuichiro YOKOYAMA ,  Takahiro IMAISHI ,  Hideaki HORIE

IPC分类号： H01M4/36 ,  H01M4/62 ,  H01M4/13 ,  H01M4/78 ,  H01M4/66 ,  H01M10/0525

摘要： Coated positive electrode active material particles for a lithium-ion battery includes positive electrode active material particles; and a coating layer that contains a polymer coating compound and a conductive additive and at least partially covers a surface of the positive electrode active material particles, wherein a coverage of the positive electrode active material particles with the coating layer as determined by X-ray photoelectron spectroscopy is 65% to 96%.

公开(公告)号：US20240258576A1

公开(公告)日：2024-08-01

申请号：US18564271

申请日：2022-05-27

申请人： APB Corporation

发明人： Hideaki HORIE ,  Kazuya MINAMI ,  Kenichi KAWAKITA ,  Toshiaki YAMAGUCHI ,  Ryosuke KUSANO ,  Ryunosuke MAEKAWA

IPC分类号： H01M10/0585 ,  H01M4/02 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/52 ,  H01M50/207

CPC分类号： H01M10/0585 ,  H01M4/668 ,  H01M10/0525 ,  H01M10/52 ,  H01M50/207 ,  H01M2004/021

摘要： A battery pack having two or more cells provided with a lamination unit composed of a single set of a positive electrode resin current collector, a positive electrode active material layer, a separator, a negative electrode active material layer and a negative electrode resin current collector sequentially laminated together, the two or more cells being sealed in an exterior body, in which filler materials are provided in gaps between the cells and/or gaps between the cell and the exterior body.

公开(公告)号：US20230317953A1

公开(公告)日：2023-10-05

申请号：US18021909

申请日：2021-08-18

申请人： APB CORPORATION

发明人： Hideaki HORIE ,  Toshiaki YAMAGUCHI ,  Hideki NISHIMURA ,  Kenichi KAWAKITA ,  Kazuya MINAMI

IPC分类号： H01M4/62 ,  H01M10/0525

CPC分类号： H01M4/622 ,  H01M10/0525 ,  H01M4/624 ,  H01M2004/027

摘要： Coated negative electrode active material particles for lithium ion batteries in which at least a part of the surface of negative electrode active material particles is covered with a coating layer containing a polymer compound and a compound (A), the polymer compound is a polymer including (meth)acrylic acid as a constituent monomer, the weight proportion of (meth)acrylic acid in the polymer based on the weight of the polymer is 70 to 95 wt %, and the compound (A) is at least one selected from the group consisting of tetrahydrothiophene 1,1-dioxide, ethylene carbonate and vinylene carbonate.

公开(公告)号：US20220407082A1

公开(公告)日：2022-12-22

申请号：US17775456

申请日：2020-11-16

申请人： APB CORPORATION

发明人： Hideki NISHIMURA ,  Yuki NEKOHASHI ,  Yusuke MIZUNO ,  Kazuya MINAMI ,  Moe KITABA ,  Hideaki HORIE

IPC分类号： H01M4/70 ,  H01M4/66 ,  H01M4/62

摘要： A lithium ion battery current collector which is used in a lithium ion battery in contact with an electrode active material at one principal surface, characterized in that the current collector is provided with a surface layer on the principal surface in contact with the electrode active material, and an uneven structure is provided on a surface in which the surface layer is in contact with the electrode active material, the uneven structure is any of a plurality of recesses composed of closed figures as seen from above, a network structure, or a pattern of recesses and protrusions, which is provided in an outermost layer of the surface layer, and a depth of the recess is 10 to 45 μm, a length of a shortest portion of lengths passing through a centroid of the recess is 30 to 105 μm, and a proportion of an area of the recess as seen from above is 19% to 61% with respect to an area of a surface of the current collector provided with the recess as seen from above.