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1. (WO2018130122) METHOD OF PREPARING CATHODE FOR SECONDARY BATTERY

Pub. No.:    WO/2018/130122    International Application No.:    PCT/CN2018/071679
Publication Date: Fri Jul 20 01:59:59 CEST 2018 International Filing Date: Sat Jan 06 00:59:59 CET 2018
IPC: H01M 4/131
Applicants: GRST INTERNATIONAL LIMITED
Inventors: HO, Kam Piu
WANG, Ranshi
SHEN, Peihua
Title: METHOD OF PREPARING CATHODE FOR SECONDARY BATTERY
Abstract:
Provided herein is a method for preparing a cathode electrode based on an aqueous slurry. A cathode slurry comprising a cathode active material especially high Ni ternary cathode active material with improved water stability. The cathode active material shows lower tendencies to pH change when applied in the aqueous slurry. The lower processing temperatures may avoid the undesirable decomposition of cathode active material having high nickel and/or manganese content. In addition, the batteries having the electrodes prepared by the method disclosed herein show impressive energy retention.