国家/地区 中国（2）
IPC部 C（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C01B032/215（2）
发明人 ZHU S（2）
公开年
申请年 2021（2） 
专利权人

Removing metal impurities in carbon material involves performing heat treatment, mixing carbon material and metal salt, and sequentially washing heat-treated mixture with acid and washing with water to obtain purified carbon material.

ZHU S, LI Y

Regenerating graphite material used as cathode material for lithium-ion batteries, comprises e.g. sieving waste lithium ion battery cathode graphite material to obtain graphite powder and obtaining graphene oxide solution.

WANG C, WU Z, XIAO S, ZHU S, FENG C, LI X, MA C, XU Y, WANG Y