国家/地区 中国（2）
IPC部 C（3）
IPC大类 C01（3）
IPC小类 C01B（3）
IPC C01B032/17（3）
发明人 LI Y（2）
公开年 2023（3）
申请年 2021（2） 
专利权人 UNIV PEKING（2）

Porous carbon material used in positive electrode for lithium-sulfur battery, has specific surface area and impurities removed through pretreatment using microwaves.

SONG M, PARK I, CHOI R, LEE H, KIM Y, PARK S, YANG S, MYUNGJUN S, PARK I T, KIM Y H

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

Method for manufacturing clean surface carbon nano-tube for use in nano-electronics field, involves preparing a multi-wall carbon nano tube, cutting outer tube of multi-wall carbon nano tube, and exposing clean inner tube to obtain carbon nano-tube with clean surface.

CHEN Y, LI Y