钠离子电池正极材料V_(2)O_(5)研究进展  

Research Progress of V_(2)O_(5) Cathode Material for Sodium-Ion Batteries

作　　者：周娅 时润娜 郎笑石[1] 姚传刚 蔡克迪[1,2] Zhou Ya;Shi Runna;Lang Xiaoshi;Yao Chuangang;Cai Kedi(College of Chemistry and Materials Engineering,Bohai University,Jinzhou Liaoning 121013,China;Liaoning Engineering Technology Research Center of Supercapacitor,Jinzhou Liaoning 121013,China)

机构地区：[1]渤海大学化学与材料工程学院,辽宁锦州121013 [2]辽宁省超级电容器工程技术研究中心,辽宁锦州121013

出　　处：《石油化工高等学校学报》2022年第6期38-47,共10页Journal of Petrochemical Universities

基　　金：国家自然科学基金项目(22075030)。

摘　　要：钠离子电池(SIBs)具有资源丰富、成本低廉及供应风险低等优势,被认为是极具潜力的下一代电化学储能器件。目前,五氧化二钒(V_(2)O_(5))正极材料因具有高工作电压及高理论容量等优点,逐渐成为SIBs正极材料的研究热点。然而,V_(2)O_(5)正极材料的低离子扩散系数、低电导率及反复的离子嵌入/脱嵌所致的结构不稳定等缺点,限制了其在SIBs中的应用。分析了V_(2)O_(5)正极材料的晶体结构和储钠机制,并通过形貌控制、晶体结构修饰、化学预插入以及与其他材料复合等改性方法,综述了V_(2)O_(5)正极材料在SIBs中的研究进展,最后对V_(2)O_(5)正极材料的发展趋势进行了展望。Sodium-ion batteries(SIBs) have the advantages of rich resources and low cost and supply risk. Therefore, they are regarded as a new generation of electrochemical energy storage devices with great potential.At present,vanadium pentoxide(V_(2)O_(5))has gradually become a research hotspot of cathode materials for SIBs because of its high working voltage and theoretical capacity.However, the disadvantages of V_(2)O_(5)cathode material, including low ion diffusion coefficient, low conductivity, and structural instability caused by repeated ion intercalation/deintercalation,have limited its application in SIBs.This paper analyzed the crystal structure and sodium storage mechanism of V_(2)O_(5)and summarized the research progress of V_(2)O_(5)cathode material in SIBs through modification methods such as morphology control, crystal structure modification, chemical pre-insertion, and composition with other materials.Finally,the paper prospected the development trend of V_(2)O_(5)electrode material.

关 键 词：V_(2)O_(5) 形貌控制 晶体结构 化学预插入 导电材料 

分 类 号：TQ150[化学工程—电化学工业] TM911[电气工程—电力电子与电力传动]