陕西科技大学学报2025，Vol.43Issue(3)：142-149,8.
两步碱酸法提纯天然石墨及其在锂离子电池中的应用
Purification of natural graphite by two-step alkaline-acid method and its application in lithium-ion batteries
摘要
Abstract
Graphite is a kind of strategic material,and its purity determines the scope of appli-cation and performance in devices.Herein,in view of the problems of high energy consump-tion,high pollution or low purity/efficiency in the purification process of traditional natural graphite,we design a"hydrothermal alkaline treatment-hydrothermal acid treatment"strategy based on the natural graphite in Alxa,we optimize the parameters of alkaline concentration,treatment temperature,acid treatment formula,etc.,to obtain graphite with purity up to 99.98％.The microstructure of the purified graphite was analyzed,and the lithium storage be-havior of graphite was studied.This paper provides a modified hydrothermal method to purify natural graphite,and obtains the variation rule of lithium storage behavior of graphite with different purity,which provides a reference for the development of the purification of natural graphite and its application in lithium-ion batteries.关键词
石墨提纯/储锂行为/天然石墨Key words
graphite purification/lithium storage behavior/natural graphite分类
化学引用本文复制引用
王冰,王晓飞,彭钢,伍媛婷,郭守武..两步碱酸法提纯天然石墨及其在锂离子电池中的应用[J].陕西科技大学学报,2025,43(3):142-149,8.基金项目
国家自然科学基金项目(52173214) （52173214）
陕西高校青年创新团队计划项目(2022-70) （2022-70）
陕西科技大学博士科研启动基金项目(2016BJ-48) （2016BJ-48）
