国家/地区 中国（5） 韩国（5） 世界知识产权组织（2）
IPC部 C（9） H（9） B（4）
IPC大类 C01（9） H01（9） B82（4）
C23（2）
IPC小类 C01B（9）
IPC C01B033/02（9）
发明人 CHOI J（3） LEECHANGSUP（3）
公开年 2022（9）
申请年 2021（9）
专利权人 UNIV KEIMYUN.（3）

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

Manufacturing graphene quantum dot/silicon/carbon nanomaterial composite useful e.g. for manufacturing secondary battery, comprises e.g. synthesizing graphene quantum dots/silicon nanoparticles/carbon nanofibers or carbon nanotubes complex.

LEECHANGSUP, SERA K, CHOI J

Manufacturing silicon/carbon nanofiber (CNF)/graphene composite for manufacturing secondary battery, by mixing and dispersing silicon nanopowder and CNF in ethanol, ultrasonically processing, adding aqueous graphene oxide solution, stirring, performing vacuum filtration and drying.

LEE C S, CONG R, CHOI J Y, LEECHANGSUP, FEMALE T, CHOI J

Manufacturing composite film useful as anode material for lithium ion secondary battery, comprises preparing silicon nanoparticles/carbon nanotube mixed solution, adding aqueous graphene solution, sonicating and performing heat treatment.

LEECHANGSUP, HEE N E, HYUN Y R, CHOI J

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

Porous silicon-carbon composite used for negative electrode active material for lithium secondary battery, comprises silicon particles, magnesium fluoride, and carbon.

LIM J C, LEE J, JEON Y M, LIM S W, PARK J G, LEE H S, LIM H H, NAM S J, LEE E, LIM J, HYUN L J, IMSUNGWOO, HEE L, JIN N, PARK S

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

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

Silicon carbon cathode material comprises core that is sphere or sphere formed by nano-silicon particles and carbon material, and shell that is porous silicon dioxide layer and amorphous carbon layer coated outside inner core.

JIA W, ZHENG Y, ZHANG F, YANG S