国家/地区 中国（23）
IPC部 B（23）
IPC大类 C01（23）
IPC小类 C01B（23）
IPC C01B033/02（23）
发明人 CHEN B（2） LI B（2） LI C（2）
LI X（2） WANG W（2） WU X（2）
公开年 2021（10） 2022（6） 2020（4） 2023（2）
申请年 2021（12）  2019（4）  2020（3）  2022（2） 
专利权人

Silicon-carbon composite material used in negative electrode of battery, comprises silicon material which is nano-silicon particles with silicon-halogen bond on surface, and pleated structure graphene which covers silicon material.

WANG H, ZHANG H, LI C, QIU W, JIANG F, FANG D, XU Z

Preparation of silicon carbon negative electrode material used in lithium-ion battery, involves mixing silicon source and amino graphene, adding initiator to prepare halogenated composite material, mixing with catalyst, electrolyte, reaction monomer, and solvent, separating and calcining.

CHENG H, GENG M, LI C, CHEN B, TAN Y, PENG S

Method for quickly preparing silicon nano-wire for lithium ion battery, involves dispersing dried cut waste silicon powder and graphene in solvent, filtering suspension, drying to obtain graphene film, and performing pre-reduction.

QIAN G, GONG X, LIU J, LU J, WANG Z

Preparation of functionalized modified graphene oxide used in preparation of negative electrode material, involves dispersing graphene oxide in water to obtain first solution, dispersing organic small molecular substance containing substituent on benzene ring in ethanol to obtain second solution.

JIN H, LI J, XU H

Active material used in negative electrode for lithium secondary battery, comprises pores having preset size, and silicon-based compound having preset ratio of peak intensity in region having specific wavelength in Raman spectrum.

PARK G O, YOO S K, CHUNG J H, ZHENG Z, YU S, PARK G

Preparing silicon-carbon composite material in electrochemical device, involves mixing silicon material, carbon material and adhesive agent to obtain intermediate A, subjecting obtained intermediate A to hot mixing kneading and isostatic pressing to obtain intermediate B.

LU C, ZHOU M, GU H, FENG S, LI X

Silicon carbon composite material useful in cathode material and lithium ion battery, comprising nano-silicon and graphene-type carbon nano-sheets.

WEN Z, LIU Q

Low-expansion silicon carbon cathode material for lithium ion battery, has core-shell structure, where core is nano silicon, middle layer is porous carbon material, and outermost layer is boron-doped graphene sponge.

FAN Z, TIAN T, PANG J, DU N, YANG D, LIANG Y

Porous silicon-carbon composite material for lithium ion battery, comprises core-shell structure, where inner core is composite of porous carbon, cerium dioxide and graphene component, and shell is doped with oxide compound selected from phosphorus oxide, arsenic oxide and selenium oxide.

CAO J

Silicon-carbon composite material used as cathode material for lithium ion battery, comprises three-core structure coating three-layer carbon shell on surface of nano-silicon surface.

PENG Y, CHEN Q, LIANG H, TANG X, CAI J