公开(公告)号：US20230318120A1

公开(公告)日：2023-10-05

申请号：US18007332

申请日：2021-08-03

Applicant: Panasonic Intellectual Property Management Co., Ltd

Inventor： KEISUKE SHIMIZU ,  YASUAKI SAKAGAWA

IPC: H01M50/333 ,  H01M50/383 ,  H01M50/367

CPC classification number: H01M50/333 ,  H01M50/383 ,  H01M50/367

Abstract: A device is adapted for use with a battery pack including a plurality of batteries and a case including an exhaust hole and a sealing member closing the exhaust hole, and is configured to discharge gas from case. The device includes: a pedestal on which the battery pack is to be placed; a gas inlet hole formed in the pedestal at a location overlapping the exhaust hole of the battery pack; a discharge duct being a vent path formed in the pedestal and communicating with the gas inlet hole, for guiding the gas discharged from the battery pack to outside of the device; and a pressing part protruding from the gas inlet hole, the pressing part configured to press the sealing member of the battery pack.

公开(公告)号：US20230291065A1

公开(公告)日：2023-09-14

申请号：US18040292

申请日：2021-09-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YASUAKI SAKAGAWA ,  KEISUKE SHIMIZU

IPC: H01M50/342

CPC classification number: H01M50/3425

Abstract: A battery pack according to an aspect of the present disclosure includes a secondary battery and a battery case that houses the secondary battery. The battery case includes an exhaust section that exhausts gas exhausted from the secondary battery to outside of the battery case. The exhaust section includes at least one slit that is opened along with deformation of the exhaust section occurring in accordance with an increase in pressure in the battery case. In the exhaust section, the slits preferably reversibly operate due to the pressure in the battery case.

公开(公告)号：US20230411768A1

公开(公告)日：2023-12-21

申请号：US18040155

申请日：2021-08-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KEISUKE SHIMIZU ,  YASUAKI SAKAGAWA

IPC: H01M50/333 ,  H01M50/213 ,  H01M50/271 ,  H01M50/30

CPC classification number: H01M50/333 ,  H01M50/213 ,  H01M50/271 ,  H01M50/394

Abstract: Battery pack (10) as an example of an exemplary embodiment includes: a plurality of batteries (50); and case (60) including case body (20) housing the plurality of batteries (50) and case lid (30) covering opening (22) of case body (20). Case (60) is configured such that when the internal pressure increases due to generation of gas, case body (20) and case lid (30) are relatively displaced in directions away from each other and a gas exhaust opening is formed in a state that a coupling between case body (20) and case lid (30) is maintained.