LiNi1-yCoyO2正极材料的晶体结构、化学计量比和电化学性能随Co替代量的演变研究

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	LiNi1-yCoyO2正极材料的晶体结构、化学计量比和电化学性能随Co替代量的演变研究
	夏荣森
刊名	Chin.Phys.Lett.
	2010-07-01
其他题名	Evolutions of Crystal Structure, Stoichiometry and Electrochemical Behavior with Co Substitution in LiNi1？yCoyO2 Positive Electrodes
通讯作者	郭向欣
中文摘要	LiNi1-yCoyO2(0.1 ≤y ≤ 0.4) positive electrode materials are synthesized by a chemical method with stoichiometric acetates of related cations. Their crystal structure, stoichiometry and electrochemical behaviors versus Co concentration are investigated by x-ray diffraction, synchrotron-based x-ray absorption fine structure and galvanostatic cycling measurements. The results reveal that the non-stoichiometric Ni2+, Li/Ni cation mixing and polarization are reduced as the amount of Co substitution increases, clearly indicating that the Co element is a medium for easily oxidizing Ni2+ to Ni3+ during the synthesis process.
学科主题	材料科学
收录类别	SCI收录
语种	英语
公开日期	2012-07-03
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/860]
专题	上海硅酸盐研究所_人工晶体研究中心_期刊论文
推荐引用方式 GB/T 7714	夏荣森. LiNi1-yCoyO2正极材料的晶体结构、化学计量比和电化学性能随Co替代量的演变研究[J]. Chin.Phys.Lett.,2010.
APA	夏荣森.(2010).LiNi1-yCoyO2正极材料的晶体结构、化学计量比和电化学性能随Co替代量的演变研究.Chin.Phys.Lett..
MLA	夏荣森."LiNi1-yCoyO2正极材料的晶体结构、化学计量比和电化学性能随Co替代量的演变研究".Chin.Phys.Lett. (2010).