国家/地区 中国（8） 世界知识产权组织（4）
IPC部 C（11）
IPC大类 C01（11）
IPC小类 C01B（11）
IPC C01B032/21（11）
发明人 LI Y（2）
公开年 2022（7） 2023（4）
申请年 2022（11）
专利权人

Preparation of silicon-carbon composite material used as electrodes for lithium-ion batteries, involves introducing carbon-based material and precursor of nanostructured silicon into reactor, decreasing dioxygen content, thermally treating and spheroidizing.

BURCHAK O

Process used for purification of graphite material, involves subjecting graphite material to oxidizing conditions, subjecting metal sulfide-lean graphite material to carbochlorination, and purging metal chlorides from metal chloride-rich graphite material, thus obtains purified graphite material.

BOISVERT R, BOULANGER P, BRASSARD M, DESAULNIERS E, NORVAL G, RIECKMANN P, TAN A, TAN Z

Preparation of lithium battery electrode material based on graphene modification involves dispersing spherical graphite and graphene oxide in solvent, heating, carbonizing obtained mixture, and mixing obtained graphene-modified material with e.g. nano conductive agent.

LIU J, YUAN Q, ZHANG X, LIU S, WEN Z

Battery active material for electrode, includes multiple of graphene platelets to which are coupled multiple of heteroatoms or heteroionic species.

RIZZI L G, CESAREO G G, SOONSHIONG P

High energy density cathode composite material in which inner core is graphite and is covered by amorphous carbon/lithium-iron-cobalt-oxygen composite material.

DU H

Rapid charging graphite cathode material useful for lithium battery, comprises graphene/carbon nanotube composites and graphyne-modified graphite.

SU H, LI Y

Cathode material useful in cathode sheet of secondary battery for terminal device, comprises an inner core i.e. a substance that can be reversibly inserted into and removed from active ions of anode material and a cladding layer.

LI Z, SUN Y, XIA S, LI Y, XIE F

Preparation of nitrogen-graphene-doped composite graphite negative electrode material involves dispersing mixed solution containing nitrogen source and graphene, and graphite, carbonizing, carrying out graphitization treatment, and screening.

YANG Y, SHEN Y, XIE J

Modified graphite carbon material comprises graphite carbon material, dispersant, aqueous solution and organic carbon source liquid.

XIE Y, WANG L, YU G

Preparing natural graphite fast-charging lithium battery cathode material comprises e.g. uniformly mixing graphite precursor material, coating agent and graphene powder, heat treating in high temperature furnace, cooling, adding material into classifier to remove large particles, and graphitizing.

GU P, ZHAO J, GAO Y, WU H, ZHAO Y, LI X, HAN J, CHEN G, CHEN R