赵玉超;吴汉杰;黄美红;梁兴华;毛杰;

• 1:广西汽车零部件与整车技术重点实验室(广西科技大学)
• 2:广东省新材料研究所

摘要(Abstract)：

采用溶胶-凝胶自蔓延燃烧合成法,制备5 V级高电位的镍锰酸锂正极材料.利用X射线衍射仪、扫描电子显微镜(SEM)、能谱仪(EDS)进行表征测试,电化学工作站测试材料的电化学性能,研究尖晶石LiNi_(0.5)Mn_(1.5)O_4材料在不同SOC状态下对电极交流阻抗谱特征的影响.结果表明,LiNi_(0.5)Mn_(1.5)O_4材料是尖晶石结构,样品微观形态为八面体的结构,粒径分布均匀.CV测试表明:LiNi_(0.5)Mn_(1.5)O_4材料放电平台在4.6 V和3.9 V,在SOC为60%~80%时,电池的组合电阻呈现相对比较低的状态,得到放电过程电化学特征与SOC的关系.

关键词(KeyWords)： SOC;LiNi0.5Mn1.5O4;电化学性能;交流阻抗;尖晶石

Abstract:

Keywords:

基金项目(Foundation): 广西汽车零部件与整车技术重点实验室自主研究课题(15-A-03-01);广西汽车零部件与整车技术重点实验室开放课题(2015KFZD02)资助;; 广西科技大学研究生教育创新计划项目(GKYC201617)

作者(Author): 赵玉超;吴汉杰;黄美红;梁兴华;毛杰;

Email:

DOI: 10.16375/j.cnki.cn45-1395/t.2017.01.018

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