Electrochemical performance of Li_(2)O-V_(2)O_(5)-SiO_(2)-B_(2)O_(3) glass as cathode material for lithium ion batteries
作者机构：Graduate School at ShenzhenTsinghua UniversityShenzhen518055China School of Materials Science and EngineeringTsinghua UniversityBeijing100084China Department of Materials Science and EngineeringUniversity of WashingtonSeattleWA98195-2120United States
出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)
年 卷 期：2019年第5卷第4期
页 面：663-669页
核心收录：
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：financially supported by Shenzhen Basic Research Project Funds(JCYJ20170817161127616)
主 题：Lithium ion battery Cathode materials Li_(2)O-V_(2)O_(5)-SiO_(2)-B_(2)O_(3)glass Electrochemical performance
摘 要：A series of 20Li_(2)O-30V_(2)O_(5)-(50-x)SiO_(2)-xB_(2)O_(3)(mol.%)(x=10,20,30,40)glasses were prepared by the traditional melt-quenching *** amorphous nature of the glasses was determined by XRD,DSC and TEM *** measurement revealed the functional group of obtained *** EDS results confirmed the presence and uniform distribution of elements in the glasses.20Li_(2)O-30V_(2)O_(5)-40SiO_(2)-10B_(2)O_(3)(LVSB10)sample with the highest V^(4+) ratio exhibited the best cycling *** order to further improve cycling stability of LVSB10 sample,ball milling was employed to reduce the particle *** ball milled LVSB10 sample(LVSB10-b)showed an improved first discharge capacity,cycling stability and rate *** measurements showed that ball milling can effectively decrease charge transfer impedance and facilitate Li^(+) ion *** work provides a new way to explore a new type of cathode materials for lithium ion batteries.
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