Simultaneous surface coating and chemical activation of the Li-rich solid solution lithium rechargeable cathode and its improved performance

	Simultaneous surface coating and chemical activation of the Li-rich solid solution lithium rechargeable cathode and its improved performance
	Wu YQ ; Ming J ; Zhuo LH ; Yu YC ; Zhao FY
刊名	electrochimica acta
	2013
卷号	113 页码:54-62
关键词	IRREVERSIBLE CAPACITY LOSS DOT (1-X)LIMO2 M ION BATTERIES HIGH-VOLTAGE ELECTROCHEMICAL PROPERTIES COMPOSITE CATHODES CO ELECTRODES COMPOSITION LI1.2MN0.525NI0.175CO0.1O2 REVERSIBLE CAPACITY POSITIVE ELECTRODE
ISSN号	0013-4686
通讯作者	zhuo lh
中文摘要	in this study, highly dispersive spherical li-rich solid solution (li1.2mn0.54ni0.13co0.13o2) particles are successfully synthesized by a co-precipitation method. then these particles are treated with aluminum nitrates ethanol solution at 80 degrees c. the treatment can extract lithium (li2o) from the li2mno3 component in the composite of li1.2mn0.54ni0.13co0.13o2. simultaneously, a thin layer of al2o3 can be precipitated on the surface of the electrode particles via direct thermal decomposition of aluminum nitrates. after treatment, the first-cycle coulombic efficiency of the electrode increases from 72.1% to 93.6%, meanwhile it shows a superior cycling stability at 100 mag(-1) with a discharge capacity of around 220 mah g(-1) and retention of 92.5% after 100 cycles, which is much higher than that of the pristine electrode (83.2%). even at a high current density of 2 a g(-1) (10 c), the discharge capacity could still achieve and well maintain as high as 140 mah g(-1). (c) 2013 elsevier ltd. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000330491500008
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49475]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Wu YQ,Ming J,Zhuo LH,et al. Simultaneous surface coating and chemical activation of the Li-rich solid solution lithium rechargeable cathode and its improved performance[J]. electrochimica acta,2013,113:54-62.
APA	Wu YQ,Ming J,Zhuo LH,Yu YC,&Zhao FY.(2013).Simultaneous surface coating and chemical activation of the Li-rich solid solution lithium rechargeable cathode and its improved performance.electrochimica acta,113,54-62.
MLA	Wu YQ,et al."Simultaneous surface coating and chemical activation of the Li-rich solid solution lithium rechargeable cathode and its improved performance".electrochimica acta 113(2013):54-62.