中南民族大学学报（自然科学版）2026，Vol.45Issue(4)：438-444,7.DOI:10.20056/j.cnki.ZNMDZK.20260402
具有优异高倍率性能LiFePO4正极材料的制备
Preparation of LiFePO4 cathode materials with excellent high-rate performance
摘要
Abstract
Lithium iron phosphate(LiFePO4)is a widely used cathode material for lithium-ion batteries,but its practical application is hindered by intrinsically low electronic conductivity,particularly under high-rate conditions.A solvothermal method employing 1,3-butanediol as the solvent was developed to synthesize LiFePO 4 with exceptional high-rate performance.The structure was characterized through X-ray powder diffraction(XRD),scanning electron microscopy(SEM),and transmission electron microscopy(TEM).The results revealed that the as-prepared LiFePO 4 displayed a nanorod morphology,which facilitated efficient lithium-ion transport by shortening diffusion pathways.When evaluated as a cathode material in lithium-ion batteries,it delivered a discharge capacity of 120.2 mAh·g-1 at 5C,with a capacity retention rate of 82.7％after 300 cycles.These results indicate that the nano-sized LiFePO 4 synthesized via the solvothermal route using 1,3-butanediol as the solvent holds promising potential for high-rate lithium-ion battery applications.关键词
锂离子电池/磷酸铁锂/正极材料/溶剂热法Key words
lithium ion batteries/lithium iron phosphate/cathode materials/solvothermal method分类
化学化工引用本文复制引用
陈成凯,刘慧玲,周运发,肖杨..具有优异高倍率性能LiFePO4正极材料的制备[J].中南民族大学学报（自然科学版）,2026,45(4):438-444,7.基金项目
企业委托横向研发项目(HZY25091) （HZY25091）
