国家/地区 中国（4）
IPC部 C（4）
IPC大类 C01（4）
IPC小类 C01B（4）
IPC C01B032/19（4）
发明人
公开年 2020（2） 2021（2）
申请年 2020（4）
专利权人

Preparation of powder metallurgy friction materials involves preparing graphene-nano-silica hybrid material, ball milling, mixing with e.g. iron powder, adding kerosene, compressing, fixing on supporting steel back, sintering, and cooling.

WANG Z, LI J, MIAO P, GAO F, LIU Z, CAI G, ZHANG M, GUO G

Device useful for preparing graphene aluminum alloy comprises air guide tube, whose air outlet end fixed on inner bottom of sealing reaction kettle, and air guide pipe includes inner pipe and outer pipe, which sleeved with each other.

HUANG J

Recovering lithium from graphite negative electrodes of waste lithium ion batteries and preparing porous graphene involves disassembling waste lithium ion battery to obtain graphite negative electrode sheet.

XU J, ZHANG J, LEI Y, XIAO F, WU Z

Preparing graphene powder used as reinforcement material in metal composite materials comprises dispersing graphite powder in solvent, cleaning, freeze-drying, subjecting to intercalation heat treatment, ball milling and peeling.

DONG L, LI L, LIU Y, LU J, HUO W, ZHANG W, ZHANG Y