湖南大学学报（自然科学版）2026，Vol.53Issue(6)：242-252,11.DOI:10.16339/j.cnki.hdxbzkb.2026325
PR和GO双碳源制备高性能LiMn0.8Fe0.2PO4/C/GO正极材料
Preparation of high-performance LiMn0.8Fe0.2PO4/C/GO cathodes using phenolic resin and graphene oxide as carbon sources
摘要
Abstract
The cathode material LiMn0.8Fe0.2PO ₄/C/GO was prepared via a solvothermal method.Employing phenolic resin(PR)and graphene oxide(GO)as dual carbon sources,the synergistic effect arises where the amorphous carbon derived from PR pyrolysis constructs ion transport channels,while the graphitized carbon sheets formed via GO reduction establish an electron-conductive network.This synergy significantly enhances the material's ion transport efficiency and structural stability.Among the samples,the one containing mass fraction 1.5%GO and 10.5%PR(GO-1.5-10.5)displays the optimal electrochemical performance.Specifically,it has a reversible capacity of 157.3 mAh·g⁻¹ at a current rate of 0.1 C and 123.4 mAh·g⁻¹ at 5 C.When subjected to a current density of 1 C,the discharge specific capacity is 148.9 mAh·g ⁻ ¹ and remained at 140.2 mAh·g ⁻ ¹ before and after 150 cycles,respectively,which demonstrates an impressive capacity retention rate of 94.2%.Moreover,the electrochemical polarization was relatively small,suggesting excellent structural stability.关键词
锂离子电池/LiMn0.8Fe0.2PO4/酚醛树脂/氧化石墨烯/电化学性能Key words
lithium-ion battery/LiMn0.8Fe0.2PO4/phenolic resin/graphene oxide/electrochemical performance分类
信息技术与安全科学引用本文复制引用
陈石林,陈世远,杜硕,殷玲,于普生..PR和GO双碳源制备高性能LiMn0.8Fe0.2PO4/C/GO正极材料[J].湖南大学学报（自然科学版）,2026,53(6):242-252,11.基金项目
国家自然科学基金资助项目(51672079,51972104),National Natural Science Foundation of China(51672079,51972104) （51672079,51972104）
