公开(公告)号：US20180190954A1

公开(公告)日：2018-07-05

申请号：US15527888

申请日：2015-10-02

Applicant: SANYO Electric Co., Ltd.

Inventor： HIROYUKI HASHIMOTO ,  KAZUNARI HIRAIDE ,  TAKAYUKI HATTORI

IPC: H01M2/10 ,  H01M2/12 ,  H01M2/34

CPC classification number: H01M2/1077 ,  H01M2/043 ,  H01M2/0473 ,  H01M2/1094 ,  H01M2/1229 ,  H01M2/206 ,  H01M2/34 ,  H01M2/345 ,  H01M2200/00 ,  H01M2200/20 ,  H01M2220/20

Abstract: Each secondary battery cell includes: an exterior can that has a rectangular outer shape having a thickness smaller than the width and has an open upper surface; a sealing plate for blocking the opening of the exterior can; a pair of electrode terminals disposed on the sealing plate; a conductive reversing plate that is disposed on the sealing plate, and becomes deformed when the internal pressure of secondary battery cell becomes a predetermined value or more; and connection plate that is disposed on the sealing plate and on the outer surface side of secondary battery cell, and, when the reversing plate becomes deformed, contacts and electrically connects to the reversing plate to block an external output. Fastening member is disposed on the upper surface of the cell stacked body so as to overlap the position at which the reversing plate is disposed on the upper surface of the sealing plate of each secondary battery cell.