国家/地区 中国（7）
IPC部 C（7） H（2）
IPC大类 C01（7） C09（2） H01（2）
IPC小类 C01B（7）
IPC C01B032/198（7）
发明人 LI C（7）
公开年 2022（5） 2023（2）
申请年 2022（7）
专利权人 SHANDONG HAI.（3） GUANGDONG BR.（2） HUNAN BRUNP .（2）

Preparing single crystal high-nickel cobalt-free material comprises e.g. mixing single crystal high-nickel cobalt-free precursor with lithium source, carrying out calcination, and mixing second single crystal high nickel cobalt free calcined material with graphene oxide solution.

LI C, YU H, XIE Y, LI A

Positive electrode for lithium-sulfur battery, comprises positive electrode current collector and positive electrode active material layer positioned on at least one surface of positive electrode current collector.

KANG D Y, YANG S, LEE C, SONG M, MYUNGJUN S, LI C, KANG D

Preparing low oxygen, high stripping graphene oxide useful in preparation of graphene heat-conducting film, comprises e.g. homogenizing and suction filtering dispersion liquid, separating concentrated sulfuric acid in reaction material, washing and filtering solid material.

ZHANG C, LI C, WANG J, YU X, ZHANG S

Preparing graphene oxide by using waste graphene film leftover material, involves collecting leftover material of waste graphite film, soaking treated by soaking in liquid nitrogen to obtain film-made graphite, and mixing with conventional graphite to obtain recycled graphite.

ZHAO Y, ZHOU W, LI C, GENG B

System for continuously recycling concentrated sulfuric acid to prepare oxidized graphene, comprises reaction kettle connected with ultrasonic device and filter through discharging pipeline, and homogenizing machine.

ZHANG C, LI C, WANG J, YU X, ZHANG S

Preparing graphene oxide by recycling concentrated sulfuric acid comprises mixing flake graphite and concentrated sulfuric acid, performing ultrasonic treatment, performing solid-liquid separation on reaction material to obtain recovered concentrated sulfuric acid and solid material, homogenizing.

ZHANG C, LI C, WANG J, YU X, ZHANG S

Preparing nitrogen-doped carbon dot-graphene oxide composite material that is used for detecting heavy metal ion, and electrochemical sensor, involves mixing carbon source and nitrogen source, performing hydrothermal reaction, performing solid-liquid separation to obtain nitrogen-doped carbon dot.

LI C, GONG Q, LIU Y, CAO K, WANG M, YANG J