国家/地区 中国（16） 世界知识产权组织（8） 美国（5） 韩国（4） 欧洲专利局（EPO）（3） 巴西（2） 日本（2） 台湾（2）
IPC部 C（23）
IPC大类 C01（23） H01（9） B01（3）
C09（3） B82（2） C08（2）
C25（2）
IPC小类 C01B（23）
IPC C01B032/215（23）
发明人 ZHANG J（3） GE M（2） LI X（2）
QU Y（2） TANG R（2） WANG B（2）
YIN H（2） YIN S（2） ZHU S（2）
公开年 2021（5） 2022（5） 2023（5） 2017（3） 2018（2） 2020（2）
申请年 2022（7）  2020（6）  2021（4）  2016（2）  2017（2） 
专利权人 NANTONG SIXT.（2） SIXTH ELEMEN.（2） YIN H（2）

Purification of graphitic material used for negative electrode material, involves electrochemically treating crude graphitic material comprising impurity chosen from metal and metal oxide, using predetermined electrolyte, predetermined anode composition and predetermined cathode composition.

CORNEJO A, ROY A K, LO V C, CHIVERS B, NOORBEHESHT N

Removing metal impurities in carbon material involves performing heat treatment, mixing carbon material and metal salt, and sequentially washing heat-treated mixture with acid and washing with water to obtain purified carbon material.

ZHU S, LI Y

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

Plasma repairing 622 type ternary lithium battery cathode graphite involves disassembling waste 622-type lithium battery, connecting compacted waste anode and cathode, eluting electrolyte component with methanol, washing various lithium salts, rectifying electrolyte solution, evaporating and drying.

YIN H

Method for repairing 523-type ternary lithium battery positive electrode plasma by plasma, involves disassembling waste 523 type ternaries to obtain battery waste positive electrode and waste graphite negative electrode, followed by filling with sodium hydroxide-lithium nitrate mixture.

YIN H

Method for recycling graphite material cathode waste lithium battery comprises preparing fine graphite particle material, placing frozen and dried graphite material in ball milling tank for high energy ball milling treatment, and obtaining fine graphite particle material.

CHEN Y, CHENG F, HUANG H, XIE D

Preparing graphene heat dissipation coating comprises e.g. pre-grinding graphene and carbon black to a preset size, and microwave baking, and mixing and stirring mixed glue, graphene and carbon black mixture, carbon nanotubes, graphite and pure water or deionized water.

LIU X, LIU S

Producing graphene from spent lithium-ion battery, by applying acid leaching solution to anode of lithium-ion battery to produce expanded graphite, applying hydrothermal process to expanded graphite and subjecting purified graphite to shear mixing contemporaneously combined with hydrogen passivation.

LI X, ZHOU Y, GAO Z

Manufacture of functional graphene used in semiconductor device, involves mixing carbon-based material, acid comprising amine group and carboxyl group, acetic acid and solvent, raising temperature and stirring, and cooling resultant of stirring.

KIM J, SONG J

High-efficient device for large scale preparation oxidizing, graphene or graphite, comprises reaction kettle, transferring devices, standing device, purifying device, and collector.

QU Y, TANG R, GE M, ZHANG J, YIN S, WANG B