电源技术2025，Vol.49Issue(5)：933-939,7.DOI:10.3969/j.issn.1002-087X.2025.05.006
磷酸钒锂正极材料在空气气氛中的锻烧行为研究
Study on the calcination behavior of lithium vanadium phosphate cathode material in air atmosphere
摘要
Abstract
Lithium vanadium phosphate[Li3V2(PO4)3,LVP]has garnered significant attention as a cathode material for lithium ion batteries in recent years due to its high redox voltage and excellent theoretical capacity.In this study,LVP powder was successfully synthesized via the sol-gel method,and the evolution of its physicochemical properties under air atmosphere at different heat treatment temperatures was systematically investigated.The results showed that at 500℃,the gray LVP pow-der transformed into a green solid,with XRD analysis confirming that the main phase was lithium va-nadium oxy phosphate(LiVOPO4).At 800℃,the gray LVP powder converted into a molten black solid,and the XRD pattern exhibited an almost flat line without characteristic peaks,indicating that LVP had transformed into a glassy state.These findings not only enrich the understanding of the thermal treatment behavior of LVP materials but also provide significant structural information and theoretical foundations for further optimizing the performance of LVP materials.关键词
磷酸钒锂/正极材料/溶胶凝胶法/煅烧行为Key words
lithium vanadium phosphate/cathode material/sol-gel method/calcination behavior分类
动力与电气工程引用本文复制引用
孙陆毅,邹玉浩,李明娟,李媛,陈鑫智..磷酸钒锂正极材料在空气气氛中的锻烧行为研究[J].电源技术,2025,49(5):933-939,7.基金项目
国家自然科学基金项目(21968011) （21968011）
云南省基础研究项目(202101BE070001-014) （202101BE070001-014）
