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1. (WO2017149990) STACKED NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Pub. No.:    WO/2017/149990    International Application No.:    PCT/JP2017/002093
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Tue Jan 24 00:59:59 CET 2017
IPC: H01M 10/0585
H01M 2/26
H01M 10/052
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: ITO Daisuke
伊藤 大介
SHINYASHIKI Yoshitaka
新屋敷 昌孝
DONOUE Kazunori
堂上 和範
Title: STACKED NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Abstract:
This stacked nonaqueous electrolyte secondary battery is provided with a plurality of laminated electrode groups and an intermediate positive electrode plate contained in an outer case. Each laminated electrode group is configured by laminating a plurality of positive electrodes, a plurality of negative electrodes, and a plurality of separators that are arranged between the positive electrodes and the negative electrodes and at both ends of the laminated electrode group. Each positive electrode comprises a rectangular positive electrode plate main body that is provided with a positive electrode mixture layer, and a positive electrode tab that is extended from the positive electrode plate main body. The intermediate positive electrode plate comprises a rectangular intermediate positive electrode plate main body that is provided with a positive electrode mixture layer, and an intermediate positive electrode tab that is extended from the intermediate positive electrode plate main body. The lateral surface of the intermediate positive electrode plate main body in the thickness direction has a smaller area than those of respective positive electrode plate main bodies of the laminated electrode group.