国家/地区 中国（4） 世界知识产权组织（2）
IPC部 C（4）
IPC大类 C01（4） H01（4）
IPC小类 C01B（4）
IPC C01B032/19（4）
发明人 XU J（4）
公开年 2021（2） 2022（2）
申请年 2021（4）
专利权人 GUANGDONG BR.（2） GUANGDONG BR.（2） HUNAN BRUNP .（2）

Sandwich structured lithium iron phosphate thin film/multilayer material graphene for lithium ion batteries, contains film deposited on both surface of whole multi-layer graphite with thickness in specific value.

WU J, WU F, SHI Y, GU C, HU X, XU D, XU J

Preparation of composite graphene catalyst of double metal hydroxide used in anode material of lithium-sulfur battery, involves dispersing graphene oxide in formamide water solution, adding metal source, and stirring.

ZHANG D, XU J, LIU M, TANG R, KONG X

Method for preparing graphene by using waste graphite of negative electrode of lithium battery, involves heating electrolyte in electrolytic cell to melt and keep warm, and respectively immersing anode and cathode in electrolyte.

XU J, LIN Q, WU X, WANG Y, RUAN D, LI C

Preparing graphene by mechanical stripping, comprises dispersing graphite raw material in foaming agent aqueous solution to obtain graphite pre-dispersion liquid, grinding, washing with water, and centrifuging and grading.

XU J, LIN Q, WU X, WANG Y, RUAN D, LI C, LIN QIAN, XU JIANFENG, WU XIAOFENG, WANG YUAN, RUAN DINGSHAN, LI CHANGDONG