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1. (WO2013155397) LOW CRYSTALLINITY SILICON COMPOSITE ANODE MATERIAL FOR LITHIUM ION BATTERY

Pub. No.:    WO/2013/155397    International Application No.:    PCT/US2013/036343
Publication Date: Fri Oct 18 01:59:59 CEST 2013 International Filing Date: Sat Apr 13 01:59:59 CEST 2013
IPC: H01M 4/38
H01M 4/134
H01M 4/1395
H01M 10/0525
B82B 3/00
Applicants: ACTACELL ENERGY SYSTEMS, INC.
Inventors: HUANG, Haitao
WEISS, Cedric
SAIDI, Yazid
Title: LOW CRYSTALLINITY SILICON COMPOSITE ANODE MATERIAL FOR LITHIUM ION BATTERY
Abstract:
An electrode composition that includes the combination of a finely ground silicon mixture, a partially carbonized polymeric material, and a buffering agent is disclosed. The silicon mixture can be formed by mechanical milling of crystalline silicon to create amorphous silicon particles, while the polymeric material can be formed from polymers such as polystyrene, polyethylene, polypropylene, polyacrylonitrile, polyvinyl chloride, polyethylene oxide that are heated under inert gasses to slightly decompose the polymers.