公开(公告)号：US20240039050A1

公开(公告)日：2024-02-01

申请号：US18358941

申请日：2023-07-26

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Kazutaka MITA ,  Yuko NOWATARI ,  Hideo KUSADA

IPC分类号： H01M10/0587 ,  H01M50/46 ,  H01M50/553

CPC分类号： H01M10/0587 ,  H01M50/461 ,  H01M50/553 ,  H01M10/0525

摘要： Provided is a technique that can obtain a wound electrode body simply and conveniently. One aspect of a battery herein disclosed is provided with a wound electrode body in which a strip-shaped positive electrode and a strip-shaped negative electrode are wound around in a predetermined winding direction around a winding axis via a strip-shaped separator. The second separator includes a region positioned outward from a winding terminal edge of the first separator; the second separator includes an extending portion extending beyond the winding terminal edge of the first separator in the winding direction; at least a part of the extending portion and a region positioned inward from the extending portion in the second separator are bonded together with a second adhesive layer existed on a surface of the second separator; and a heat-resistant layer is existed on an outermost surface of the wound electrode body.

公开(公告)号：US20230155251A1

公开(公告)日：2023-05-18

申请号：US18053764

申请日：2022-11-09

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Shinya MIYAZAKI ,  Atsushi OBAYASHI ,  Hideo KUSADA ,  Yuko NOWATARI

IPC分类号： H01M50/451 ,  H01M50/434 ,  H01M50/417 ,  H01M10/0525

CPC分类号： H01M50/451 ,  H01M50/434 ,  H01M50/417 ,  H01M10/0525

摘要： The separator disclosed here includes a base material layer of a porous resin, and a ceramic layer containing 85 mass % or more of first inorganic particles and disposed on at least one surface of the base material layer. Principal surfaces of the separator have long sides. The separator further includes an adhesive layer having portions arranged at a predetermined pitch to form a stripe pattern on at least one of the principal surfaces. The adhesive layer contains an adhesive resin and second inorganic particles. A content of the second inorganic particles in the adhesive layer is 3 mass % or more and 65 mass % or less. An angle formed by the adhesive layer and the long side of the at least one principal surface of the separator is 20° or more and 70° or less.

公开(公告)号：US20230155250A1

公开(公告)日：2023-05-18

申请号：US18052978

申请日：2022-11-07

申请人： PRIME PLANET ENERGY & SOLUTIONS, INC.

发明人： Atsushi OBAYASHI ,  Shinya MIYAZAKI ,  Hideo KUSADA ,  Yuko NOWATARI

IPC分类号： H01M50/451 ,  H01M50/434 ,  H01M50/417 ,  H01M10/0525

CPC分类号： H01M50/451 ,  H01M10/0525 ,  H01M50/417 ,  H01M50/434

摘要： A separator having both high adhesion to electrodes and high impregnating ability of a nonaqueous electrolyte is provided. The separator disclosed here includes a base material layer of a porous resin, and a ceramic layer containing inorganic particles and disposed on at least one surface of the base material layer. Principal surfaces of the separator have long sides. The separator further includes an adhesive layer having portions arranged at a predetermined pitch to form a stripe pattern on at least one of the principal surfaces. An angle formed by the adhesive layer and the long side of the at least one principal surface of the separator is 20° or more and 70° or less.

公开(公告)号：US20240258580A1

公开(公告)日：2024-08-01

申请号：US18423303

申请日：2024-01-26

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Yuko NOWATARI ,  Koji NIHOMMATSU

IPC分类号： H01M10/0587 ,  B65H18/28

CPC分类号： H01M10/0587 ,  B65H18/28 ,  B65H2701/10

摘要： A method for manufacturing a wound electrode body disclosed herein includes preparing a positive electrode sheet, a negative electrode sheet, and a separator sheet, conveying each of the prepared sheets, and winding each of the conveyed sheets around a core. In the preparing, an adhesion layer is arranged on at least one sheet of the sheets. In the conveying, the sheet on which the adhesion layer is arranged is conveyed such that a region where the adhesion layer is not arranged contacts a roller.

公开(公告)号：US20240039051A1

公开(公告)日：2024-02-01

申请号：US18358943

申请日：2023-07-26

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Yuko NOWATARI ,  Kazutaka MITA ,  Hideo KUSADA ,  Koji NIHOMMATSU

IPC分类号： H01M10/0587 ,  H01M50/46

CPC分类号： H01M10/0587 ,  H01M50/461 ,  H01M10/0525

摘要： Provided is a technique that can obtain a wound electrode body simply and conveniently. One aspect of a battery herein disclosed is provided with a wound electrode body in which a positive electrode and a negative electrode are wound around in a predetermined winding direction around a winding axis via a separator. The battery includes a first separator and a second separator as the separator; the second separator includes a region positioned outward from an winding terminal edge of the first separator; the second separator includes an extending portion extending beyond a winding terminal edge of the first separator in the winding direction; a second adhesive is existed at least on a part of an inner surface of the extending portion; and the extending portion and a region positioned inward from the extending portion in the second separator are bonded via the second adhesive layer.

公开(公告)号：US20230246246A1

公开(公告)日：2023-08-03

申请号：US18159093

申请日：2023-01-25

申请人： Prime Planet Energy & Solutions, Inc.

发明人： Yuko NOWATARI ,  Atsushi OBAYASHI ,  Hideo KUSADA ,  Koji NIHOMMATSU

IPC分类号： H01M10/0587 ,  H01M50/46

CPC分类号： H01M10/0587 ,  H01M50/461

摘要： The disclosed flat-shaped wound electrode assembly includes a negative electrode, a positive electrode, a first separator, and a second separator. They are stacked one on another to arrange the first separator between the negative electrode and the positive electrode, and to arrange the second separator on the outermost surface of the wound electrode assembly. The resultant is wound around a winding axis in a longitudinal direction. On each of both main surfaces of the first separator and both main surfaces of the second separator, an adhesion layer is located in stripe patterns. When viewed from a flat side surface of the wound electrode assembly, in a predetermined direction, an angle of the adhesion layer of the first separator with respective to the winding axis on the main surface and an angle of the adhesion layer of the second separator with respect to the winding axis are different from each other.

公开(公告)号：US20230198099A1

公开(公告)日：2023-06-22

申请号：US18066425

申请日：2022-12-15

申请人： PRIME PLANET ENERGY & SOLUTIONS, INC.

发明人： Hideo KUSADA ,  Atsushi OBAYASHI ,  Yuko NOWATARI ,  Shinya MIYAZAKI

IPC分类号： H01M50/46 ,  H01M50/417 ,  H01M50/463 ,  H01M50/451

CPC分类号： H01M50/461 ,  H01M50/417 ,  H01M50/463 ,  H01M50/451

摘要： The separator disclosed herein includes a substrate and an adhesive layer. The adhesive layer is partially provided on one side of, or both of two sides of, the substrate. Where an initial thickness of the separator is T0, a thickness of the separator when the separator is impregnated with an electrolyte solution and supplied with a pressure of 1 MPa is T1, a thickness of the separator when, after this, the separator is supplied with a pressure of 2 MPa for 1 hour, and the pressure is decreased to 0.5 MPa, is T2, and a thickness of the separator when, after this, the separator is supplied with a pressure of 4 MPa for 48 hours, is T4, the separator satisfies inequalities (1) through (3): (1) 1≤T1/T0≤1.1; (2) 0.92≤T2/T1≤1; and (3) 0.6≤T4/T1≤0.8.