钢铁钒钛2025，Vol.46Issue(2)：76-82,7.DOI:10.7513/j.issn.1004-7638.2025.02.011
钒源对磷酸钒钠钠离子正极材料电化学性能的影响研究
Study on the effect of vanadium source on the electrochemical performance of sodium vanadium phosphate cathode materials for sodium-ion batteries
王仕伟 1郑浩 2汪劲鹏 2蒋霖2
作者信息
- 1. 西南石油大学新能源与材料学院,四川成都 610500||攀钢集团攀枝花钢铁研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花 617000
- 2. 攀钢集团攀枝花钢铁研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花 617000
- 折叠
摘要
Abstract
A series of Na3V2(PO4)3/C anode materials were synthesized by sol-gel method,using the in-termediate products ammonium polyvanadate(APV,NH4V3O8)prepared by different vanadium extrac-tion processes and high-purity vanadium pentoxide as vanadium sources,and Na2CO3,NH4H2PO4,and citric acid as sodium,phosphorus,and carbon sources,respectively.The effects of different vanadium sources on Na3V2(PO4)3/C anode materials were investigated in detail through XRD,SEM,battery test-ing system and electrochemical workstation.The results show that the Na3V2(PO4)3/C(NaH-NVP)cath-ode materials prepared by ammonium polyvanadate from sodium method for vanadium extraction as the vanadium source present superior high-rate performance,i.e.,reversible capacities of 98 mAh/g and 64 mAh/g at 5C and 10C,respectively.The research has expanded the selection of vanadium sources for synthesizing sodium vanadium phosphate materials,which has a positive significance in reducing the preparation cost of sodium vanadium phosphate.关键词
钒源/溶胶-凝胶法/磷酸钒钠/正极材料Key words
vanadium source/sol-gel method/sodium vanadium phosphate/cathode materials分类
矿业与冶金引用本文复制引用
王仕伟,郑浩,汪劲鹏,蒋霖..钒源对磷酸钒钠钠离子正极材料电化学性能的影响研究[J].钢铁钒钛,2025,46(2):76-82,7.
