国家/地区 中国（4）
IPC部 H（3） C（2）
IPC大类 H01（3） C01（2）
IPC小类 H01M（3） C01B（2）
IPC H01M004/36（3） C01B025/45（2） H01M004/58（2）
H01M010/0525（2）
发明人 ZHU H（4）
公开年 2017（2）
申请年 2016（3） 
专利权人 UNIV CHANGSHA SCI TECHNOLOGY（4）

Preparation of graphene-cobalt-iron-tin composite material, involves adding pre-oxidized graphite, concentrated sulfuric acid, potassium permanganate and deionized water, adding phosgene, iron(III) chloride and tin(II) chloride.

ZHU H, CHEN Z

Preparation of graphene involves grinding pure magnesium powder, mixing magnesium powder with sodium chloride, adding carbon tetrachloride liquid to another ceramic container, and vacuumizing mixture in vacuum furnace.

CHEN Z, ZHU H, ZHANG Z

Preparing lithium iron phosphate/graphene composites material comprises mixing lithium iron phosphate and the graphene, then taking N-methyl-2-pyrrolidone as the dispersant, then ball milling ours and calcining under nitrogen.

ZHU H, CHEN Z, ZHANG Z, ZHANG C

Preparing lithium iron phosphate/graphene composite material comprises e.g. adding waste lithium iron phosphate cathode piece into ethyl acetate and alcohol mixed organic solvent, adding natural graphite flake graphite, washing and drying.

CHEN Z, ZHU H