国家/地区 中国（3）
IPC部 C（2） H（2）
IPC大类 C01（2） H01（2）
IPC小类 C01B（2） H01G（2）
IPC C01B032/19（2）
发明人 WANG C（3）
公开年 2020（2）
申请年 2019（2） 
专利权人 GUANGDONG POWER GRID CO LTD（3）

Electrode sheet for ultra-capacitor of lithium ion battery and sodium ion battery, has current collector provided with active material, conductive agent and binder, where conductive agent is formed as graphene quantum dot.

XIAO X, WANG C, ZHONG G, XU K, WU S, ZENG J, SU W, WEI Z

Preparing graphene material comprises mixing chitosan, activator, acetic acid and solvent, stirring, adding cross-linking agent, cross-linking reaction, drying the paste precursor, activating in alkaline solution, and carbonizing.

WANG C, XIAO X, ZHONG G, XU K, WU S, SU W, ZHAO W, LV W

Preparation of nitrogen-doped graphene involves expanding graphite by electrochemically intercalating graphite, mixing expanded graphite with nitrogen source, heating and annealing.

WANG C, XIAO X, ZHONG G, XU K, WU S, ZHAO W, LU X, FENG H