公开(公告)号：US20210020885A1

公开(公告)日：2021-01-21

申请号：US17042723

申请日：2019-03-27

Applicant: GS Yuasa International Ltd.

Inventor： Masumi OGAWA

IPC: H01M2/16 ,  H01M10/0587 ,  H01M2/26

Abstract: An energy storage device includes an electrode assembly, a positive-electrode current collector, and an insulating sheet. The electrode assembly has a main body part and a connecting part projecting from the main body part and connected to the positive-electrode current collector. The insulating sheet has a sheet side surface part facing a side surface of the main body part, and a sheet extension part extending from the sheet side surface part. The sheet extension part is fixed to the electrode assembly.

公开(公告)号：US20240154179A1

公开(公告)日：2024-05-09

申请号：US18279798

申请日：2022-02-08

Applicant: GS Yuasa International Ltd.

Inventor： Masumi OGAWA ,  Naoki OKADA

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M50/103 ,  H01M50/538

CPC classification number: H01M10/0587 ,  H01M10/0525 ,  H01M50/103 ,  H01M50/538

Abstract: An energy storage device includes: a first electrode assembly formed by winding a first plate; and a second electrode assembly formed by winding a second plate, in which the first electrode assembly includes a first positive electrode tab and a first negative electrode tab protruding from a part of a first electrode assembly body portion, the second electrode assembly includes a second positive electrode tab and a second negative electrode tab protruding from a part of a second electrode assembly body portion, the first electrode assembly body portion includes a first plate terminal end portion at a position facing the second electrode assembly body portion, the second electrode assembly body portion includes a second plate terminal end portion at a position facing the first electrode assembly body portion, and the first plate terminal end portion and the second plate terminal end portion are disposed at positions which do not overlap each other as viewed in an arrangement direction of the first electrode assembly and the second electrode assembly.

公开(公告)号：US20200006719A1

公开(公告)日：2020-01-02

申请号：US16478450

申请日：2018-01-17

Applicant: GS Yuasa International Ltd.

Inventor： Masumi OGAWA

IPC: H01M2/04 ,  H01M2/26 ,  H01M10/04 ,  H01M2/02 ,  H01M10/0525 ,  H01M10/0587

Abstract: An energy storage device includes: an electrode assembly having tab portions; a container body accommodating the electrode assembly; a lid structural body having a lid plate which closes the container body; and an insulating member arranged around a periphery of the electrode assembly in the container body, wherein the insulating member has a locking portion locked to a portion of the lid structural body.