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1. (WO2018079165) STACKED SECONDARY BATTERY AND METHOD FOR PRODUCING SAME

Pub. No.:    WO/2018/079165    International Application No.:    PCT/JP2017/034857
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Sep 28 01:59:59 CEST 2017
IPC: H01M 2/20
H01M 2/10
H01M 2/34
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: KOUNO Ryuji
河野 竜治
TSUBOUCHI Shigetaka
坪内 繁貴
Title: STACKED SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
Abstract:
A stacked secondary battery wherein: each positive electrode has a positive electrode tab; each negative electrode has a negative electrode tab; a parallel connection is established in a battery unit by bonding positive electrode tabs to each other and bonding negative electrode tabs to each other in the battery unit, and by stacking electrode bodies, each of which is composed of a positive electrode, an electrolyte layer and a negative electrode; a plurality of battery units are stacked; the plurality of battery units are connected in series; the positive electrode tab of one of battery units adjacent to each other in the stacking direction and the negative electrode tab of the other have parts bonded with a bus bar; and the part where the positive electrode tab and the bus bar are bonded with each other and the part where the negative electrode tab and the bus bar are bonded with each other are adjacent to each other in the stacking direction.