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1. (WO2017151518) ELECTRODE FOR AN ENERGY STORAGE DEVICE AND METHOD FOR FABRICATING A DRY ENERGY STORAGE DEVICE ELECTRODE FILM

Pub. No.:    WO/2017/151518    International Application No.:    PCT/US2017/019738
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Tue Feb 28 00:59:59 CET 2017
IPC: H01G 11/06
H01G 11/28
H01G 11/38
H01G 11/86
H01M 4/04
H01M 4/62
Applicants: MAXWELL TECHNOLOGIES, INC.
Inventors: RAMAN, Santhanam
BORKENHAGEN, James
XI, Xiaomei
YE, Xiang-Rong
Title: ELECTRODE FOR AN ENERGY STORAGE DEVICE AND METHOD FOR FABRICATING A DRY ENERGY STORAGE DEVICE ELECTRODE FILM
Abstract:
An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode, where the anode and/or electrode includes an electrode film having a super-fibrillized binder material and carbon. The electrode film can have a reduced quantity of the binder material while maintaining desired mechanical and/or electrical properties. A process for fabricating the electrode film may include a fibrillization process using reduced speed and/or increased process pressure such that fibrillization of the binder material can be increased. The electrode film may include an electrical conductivity promoting additive to facilitate decreased equivalent series resistance performance. Increasing fibrillization of the binder material may facilitate formation of thinner electrode films, such as dry electrode films.