国家/地区 中国（4）
IPC部 C（4）
IPC大类 C01（4） H01（4）
IPC小类 C01B（4）
IPC H01M004/62（4） H01M004/36（3） C01B025/45（2）
C01B032/05（2） C01B032/198（2） H01M004/48（2）
H01M004/58（2）
发明人 ZHANG Q（4）
公开年 2023（4）
申请年 2022（3） 
专利权人

Preparing carbon-wrapped pyrophosphate polyanion composite material for sodium ion battery, comprises dispersing sodium source, iron source, phosphorus source, doping element source, carbon source and reducing agent in solvent, high-energy ball milling, drying, tableting and sintering.

ZHANG Q, TANG Y, SUN D, ZHU L, WANG H

Preparation of graphene/silicon oxide composite material for preparing electrode material, involves preparing graphene oxide by mixing graphite, water, concentrated sulfuric acid and sodium vanadate, preparing mixed material using reduced three-dimensional graphene, and laser processing.

LI J, LI Y, MA C, ZHANG Q, ZHU J

Preparing lithium iron phosphate/graphene oxide composite material comprises e.g. adding polyamine oxidized cellulose to iron source to react, mixing mixture and graphene oxide solution, adding lithium source reaction, mixing solid material with carbon source, crushing, screening, and demagnetizing.

ZHANG J, ZHANG C, ZHANG Q

Preparing carbon-coated silicon nanosheet/nitrogen-doped graphene used in lithium-ion battery comprises mixing silicon nanosheet-graphene precursor with ferrocene, preparing carbon-coated silicon nanosheet/nitrogen-doped graphene, pickling, washing with water-ethanol, and drying.

ZHAO Y, ZHANG Q, MA C