公开(公告)号：US20230223623A1

公开(公告)日：2023-07-13

申请号：US17924186

申请日：2021-05-13

Applicant: GS Yuasa International Ltd.

Inventor： Akio KAWAI ,  Sho KOZONO

IPC: H01M50/159 ,  H01M50/141 ,  H01M50/562 ,  H01M50/164

CPC classification number: H01M50/159 ,  H01M50/141 ,  H01M50/164 ,  H01M50/562

Abstract: An energy storage device includes: an electrode assembly; a case that accommodates the electrode assembly; and an external terminal made of metal and disposed in the case, in which the external terminal includes: a flange portion spreading along the case outside the case; and a shaft portion extending from the flange portion, penetrating the case, and electrically connected to the electrode assembly, in which the flange portion includes a plurality of metal layers layered in a penetrating direction of the shaft portion.

公开(公告)号：US20230187794A1

公开(公告)日：2023-06-15

申请号：US17924460

申请日：2021-05-13

Applicant: GS Yuasa International Ltd.

Inventor： Jun NAKAMURA ,  Akio KAWAI

IPC: H01M50/564 ,  H01M50/176 ,  H01M50/55 ,  H01M50/553 ,  H01M50/562

CPC classification number: H01M50/564 ,  H01M50/176 ,  H01M50/55 ,  H01M50/553 ,  H01M50/562 ,  H01G11/74

Abstract: An energy storage device includes an electrode assembly, a case that houses the electrode assembly, and a metal external terminal disposed in the case, wherein the external terminal includes a flange portion spreading along the case outside the case and a shaft portion extending from the flange portion and penetrating the case, the flange portion is formed of a clad material including a plurality of metal layers stacked in a penetrating direction of the shaft portion, and includes a through hole through which the shaft portion is inserted.

公开(公告)号：US20210351430A1

公开(公告)日：2021-11-11

申请号：US17307070

申请日：2021-05-04

Applicant: GS Yuasa International Ltd.

Inventor： Yoshiyuki HONDA ,  Akio KAWAI

IPC: H01M10/04 ,  H01M50/103

Abstract: A method for manufacturing an energy storage device according to one aspect of the present invention includes inserting an electrode assembly into a case while causing an insulating member having a sheet-like shape to follow a surface of the electrode assembly in which electrodes are layered. The insulating member includes a first portion corresponding to a first surface of the electrode assembly in a first direction which is a direction of a short side surface of the case and a thickness direction of the electrode assembly, a second portion corresponding to a first end surface which is an end surface of the electrode assembly in a second direction orthogonal to the first direction, a third portion corresponding to a second surface of the electrode assembly in the first direction, and a first extending portion extending from the first portion.