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1. (WO2018180599) SECONDARY BATTERY

Pub. No.:    WO/2018/180599    International Application No.:    PCT/JP2018/010469
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Sat Mar 17 00:59:59 CET 2018
IPC: H01M 10/04
H01M 10/0585
Applicants: MURATA MANUFACTURING CO., LTD.
株式会社村田製作所
Inventors: KAWAI, Toru
川合 徹
OTSUKA, Masahiro
大塚 正博
Title: SECONDARY BATTERY
Abstract:
Provided is a secondary battery having an electrolyte and an electrode assembly 100 housed in an external case. The electrode assembly 100: includes positive electrodes 10A, negative electrodes 10B, and separators 50 arranged between the positive electrodes 10A and the negative electrodes 10B; and has a flat laminated structure having laminated flat therein a plurality of electrode units including the positive electrodes 10A, the negative electrodes 10B, and the separators 50. At least either the outermost layer positive electrode among the laminated positive electrodes or the outermost layer negative electrode 10B among the laminated negative electrodes 10B comprises, in the cross-section view: current collectors 11A, 11B; coated sections 12α having coated thereupon an active substance supplied to one main surface of the main sections 11α of a current collector; and uncoated sections 60 not coated in the active substance.