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1. (WO2017150264) ELECTROCHEMICAL DEVICE, NEGATIVE ELECTRODE USED FOR SAME, AND METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE

Pub. No.:    WO/2017/150264    International Application No.:    PCT/JP2017/006262
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Feb 22 00:59:59 CET 2017
IPC: H01G 11/26
H01G 11/06
H01G 11/50
H01G 11/86
H01M 4/13
H01M 10/052
H01M 10/0563
H01M 10/058
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: NAGAMITSU Kenichi
永光 健一
SHIRAKAMI Atsuro
白髪 充朗
Title: ELECTROCHEMICAL DEVICE, NEGATIVE ELECTRODE USED FOR SAME, AND METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE
Abstract:
A negative electrode used for an electrochemical device according to the present invention is provided with: a negative electrode current collector; a first negative electrode active material layer supported on one of the surfaces of the negative electrode current collector; and a second negative electrode active material layer supported on the other surface of the negative electrode current collector. The capacity C1 of the first negative electrode active material layer per unit mass is larger than the capacity C2 of the second negative electrode active material layer per unit mass. Thus, the negative electrode suited for a high-capacity electrochemical device manufactured by pre-doping the negative electrode with lithium ions can be provided.