公开(公告)号：US20210143504A1

公开(公告)日：2021-05-13

申请号：US17151000

申请日：2021-01-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jiro MURATSU ,  Chifumi MURAYAMA

IPC: H01M50/20 ,  H01M50/152 ,  H01M50/502 ,  H01M50/543

Abstract: A battery module includes a plurality of cylindrical batteries, a wiring board, a plurality of positive electrode-side current collector members, and a plurality of negative electrode-side current collector members. The wiring board is a wiring board having a multilayer structure in which wiring patterns are formed in a plurality of layers, and includes a positive electrode-side wiring pattern and a negative electrode-side wiring pattern. The respective wiring patterns are formed as different layers of the wiring board. Each positive electrode-side current collector member electrically connects a sealing body functioning as a positive electrode external terminal of each cylindrical battery and the positive electrode-side wiring pattern. Each negative electrode-side current collector member electrically connects a case body functioning as a negative electrode external terminal of each cylindrical battery and the negative electrode-side wiring pattern.

公开(公告)号：US20230207955A1

公开(公告)日：2023-06-29

申请号：US17914186

申请日：2021-03-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keisuke SHIMIZU ,  Katsushi ISHIZAKA ,  Chifumi MURAYAMA

IPC: H01M50/358 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/204

CPC classification number: H01M50/358 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/204

Abstract: Provided is a battery pack (10) the reliability of which can be enhanced. This battery pack (10) accommodates a secondary battery (14) inside a case (12). The battery pack includes: an exhaust port (22) that provides communication between an internal space of the case (12) for accommodating the secondary battery (14) and the outside and that discharges gas discharged from the secondary battery (14) from the inner space to the outside; and a heat exchange body (24) that is provided to the exhaust port (22) and is formed of a porous material having a three-dimensional mesh structure so that gas passes therethrough.

公开(公告)号：US20240234855A1

公开(公告)日：2024-07-11

申请号：US18611361

申请日：2024-03-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shinya MOTOKAWA ,  Keisuke SHIMIZU ,  Chifumi MURAYAMA

IPC: H01M10/647 ,  H01M50/209 ,  H01M50/242 ,  H01M50/262 ,  H01M50/271 ,  H01M50/289 ,  H01M50/503 ,  H01M50/507 ,  H01M50/509 ,  H01M50/51 ,  H01M50/55 ,  H01M50/553

CPC classification number: H01M10/647 ,  H01M50/209 ,  H01M50/262 ,  H01M50/271 ,  H01M50/289 ,  H01M50/503 ,  H01M50/507 ,  H01M50/509 ,  H01M50/51 ,  H01M50/55 ,  H01M50/553 ,  H01M50/242

Abstract: A battery pack includes a plurality of bus bars serving to form a plurality of parallel battery structures that each have parallel connection of two or more of a plurality of prismatic batteries. The plurality of bus bars electrically connect the plurality of prismatic batteries to connect the plurality of parallel battery structures in series. The plurality of parallel battery structures connected in series form a battery connection structure that includes a turn causing a reversal of direction of series connection of the plurality of parallel battery structures.

公开(公告)号：US20220328922A1

公开(公告)日：2022-10-13

申请号：US17635960

申请日：2020-08-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hirotaka OGINO ,  Chifumi MURAYAMA ,  Jiro MURATSU ,  Koichi SAWADA

IPC: H01M50/244 ,  H01M50/213 ,  H01M50/218 ,  H01M50/627 ,  H01M10/643 ,  H01M10/653

Abstract: An electricity storage module according to the present invention is provided with: a plurality of arranged cylindrical electricity storage devices; and an upper holder which holds the upper end parts of the plurality of electricity storage devices, while being provided with a plurality of containing parts that is formed of a thermoplastic resin. The upper holder comprises an upper support member which is formed of a thermosetting resin and supports electricity storage devices adjacent to each other, while being positioned between the adjacent electricity storage devices. In comparison to the thermoplastic resin, the thermosetting resin is not susceptible to deformation or melting event if heat is applied thereto.