公开(公告)号：US20230268596A1

公开(公告)日：2023-08-24

申请号：US18309267

申请日：2023-04-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tetsuji OMURA ,  Masaya UGAJI

IPC: H01M50/209 ,  H01M50/522 ,  H01M50/509 ,  H01M50/505

CPC classification number: H01M50/209 ,  H01M50/522 ,  H01M50/509 ,  H01M50/505 ,  H01M50/55

Abstract: A battery module includes: a plurality of batteries stacked together; and a busbar that electrically connects the plurality of batteries with each other. The busbar has: a main body that extends along axis X along which the batteries are stacked together; and a plurality of connectors that protrude from the main body along an axis that intersects with the axis along which the batteries are stacked together, and are electrically connected with terminals of the batteries, respectively. The plurality of batteries are divided into a plurality of battery units. Each of the plurality of battery units includes at least two of the plurality of batteries. The busbar connects the at least two of the plurality of batteries of each of the battery units with each other in parallel. The busbar connects the battery units with each other in series.

公开(公告)号：US20210091404A1

公开(公告)日：2021-03-25

申请号：US17113834

申请日：2020-12-07

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tetsuji OMURA ,  Momoko HIRANUMA

IPC: H01M10/04 ,  H01M10/617 ,  H01M10/625 ,  H01M10/6551 ,  H01M10/6555 ,  H01M2/10

Abstract: A separator includes an intervening portion that is disposed between two adjacent batteries and insulates the two batteries, an input part that receives external force input during assembly of a battery module and is deformable by the external force, and a battery pressing part that is in contact with a first surface of one of batteries, the first surface extending in a stack direction X of the batteries, and use the external force input into the input part to press the first surface.

公开(公告)号：US20250096356A1

公开(公告)日：2025-03-20

申请号：US18939340

申请日：2024-11-06

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tetsuji OMURA ,  Toshiya GOTOU ,  Shinya MOTOKAWA

IPC: H01M10/6556 ,  H01M10/613 ,  H01M10/647 ,  H01M10/653 ,  H01M10/6553 ,  H01M10/6567 ,  H01M10/658 ,  H01M50/209 ,  H01M50/224 ,  H01M50/227 ,  H01M50/276 ,  H01M50/278 ,  H01M50/289 ,  H01M50/50 ,  H01M50/526

Abstract: Battery module includes a plurality of batteries (secondary batteries), one or more bus bars that electrically connect the plurality of batteries, and cooling plate that is in contact with bus bar and has one or more passages through which a coolant flows. Each of the plurality of batteries has: an electrode body; an outer can that accommodates the electrode body; a lid that seals an opening of the outer can; and positive electrode terminal and negative electrode terminal that are individually inserted through a pair of through holes provided on the lid, are insulated from the lid, and are electrically connected to the electrode body. One of positive electrode terminal and negative electrode terminal is connected to bus bar.

公开(公告)号：US20230420768A1

公开(公告)日：2023-12-28

申请号：US18463052

申请日：2023-09-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tetsuji OMURA

IPC: H01M10/6551 ,  H01M10/04 ,  H01M50/24 ,  H01M50/209 ,  H01M50/224 ,  H01M50/231 ,  H01M50/264 ,  H01M50/236 ,  H01M50/242

CPC classification number: H01M10/6551 ,  H01M10/0481 ,  H01M50/24 ,  H01M50/209 ,  H01M50/224 ,  H01M50/231 ,  H01M50/264 ,  H01M50/236 ,  H01M50/242 ,  H01M2220/20 ,  Y02E60/10 ,  H01M50/273

Abstract: A battery module includes: a battery stack that includes a plurality of batteries stacked; a pair of end plates that are disposed at both ends, in stack direction X in which the batteries are stacked, of the battery stack, the pair of end plates including at least one end plate that includes a first portion made of a first metal that has a Young's modulus higher than a Young's modulus of a second metal, and a second portion made of the second metal that has a density lower than a density of the first metal; a restraint member that is made of the first metal and sandwiches the battery stack and the pair of end plates in stack direction X; and a welded portion that connects the first portion of the at least one end plate with the restraint member.

公开(公告)号：US20210296721A1

公开(公告)日：2021-09-23

申请号：US17264246

申请日：2019-07-26

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tetsuji OMURA ,  Toshiya GOTOU ,  Shinya MOTOKAWA

IPC: H01M10/6556 ,  H01M10/613 ,  H01M10/647 ,  H01M50/526 ,  H01M10/658 ,  H01M10/653 ,  H01M10/6553 ,  H01M10/6567

Abstract: Battery module includes a plurality of batteries (secondary batteries), one or more bus bars that electrically connect the plurality of batteries, and cooling plate that is in contact with bus bar and has one or more passages through which a coolant flows. Each of the plurality of batteries has: an electrode body; an outer can that accommodates the electrode body; a lid that seals an opening of the outer can; and positive electrode terminal and negative electrode terminal that are individually inserted through a pair of through holes provided on the lid, are insulated from the lid, and are electrically connected to the electrode body. One of positive electrode terminal and negative electrode terminal is connected to bus bar.

公开(公告)号：US20210050572A1

公开(公告)日：2021-02-18

申请号：US17085145

申请日：2020-10-30

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tetsuji OMURA ,  Akira TAKANO

IPC: H01M2/12 ,  H01M2/10 ,  H01M2/20

Abstract: A battery module includes a battery and a covering put over a surface of the battery. The surface of the battery is provided with a valve to release gas produced inside the battery. The covering includes a thin-walled part and a thick-walled part disposed in a region contiguous to the thin-walled part. The thin-walled part is formed thinner in thickness than the thick-walled part.

公开(公告)号：US20240313360A1

公开(公告)日：2024-09-19

申请号：US18675490

申请日：2024-05-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tetsuji OMURA ,  Shingo KUME

IPC: H01M50/502 ,  H01M50/50 ,  H01R4/02 ,  H02G5/00

CPC classification number: H01M50/502 ,  H01M50/50 ,  H02G5/005 ,  H01R4/029

Abstract: A bus bar has: a first joint part connected to an output terminal of the first cell; a second joint part connected to an output terminal of the second cell; and a projection that is disposed between the first joint part and the second joint part and protrudes in a stacking direction in which the cells and the bus bar are stacked. The projection has a first inclined part extending from the first joint part and has a second inclined part extending from the second joint part. The first inclined part and the second inclined part are arranged in such a manner that the first inclined part and the second inclined part are aligned with a predetermined interval W and that the predetermined interval gradually becomes wider from a first end side toward a second end side.