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	Influence of silver coating on the structure and properties of LiFePO/sub 4/
	Lu Junbiao ; Le Bin ; Tang Zilong ; Zhang Zhongtai ; Li Junrong ; Shen Wanci
	2010-05-10 ; 2010-05-10
关键词	Practical Experimental/ capacitance cathodes coatings current density iron compounds lithium compounds particle size secondary cells silver X-ray photoelectron spectra/ silver coating Oliver phase fine particle element distribution photograph BES XPS cyclic voltammetry lithium ion extraction ion insertion current density electrode polarity battery LiFePO/sub 4/-Ag/ A8630F Secondary cells A8140R Electrical and magnetic properties (related to treatment conditions) A8160 Corrosion, oxidation, etching, and other surface treatments A7960E Photoelectron spectra of semiconductors and insulators B8410E Secondary cells/ LiFePO4-Ag/int LiFePO4/int PO4/int Ag/int Fe/int Li/int O4/int O/int P/int LiFePO4/ss PO4/ss Fe/ss Li/ss O4/ss O/ss P/ss Ag/el
中文摘要	The dispersant of PEG AgNO/sub 3/ and pretreated LiFePO/sub 4 / were mixed by ball mill. And then Oliver phased LiFePO/sub 4/ coated by silver was synthesized. Comparing with blank sample, LiFePO/sub 4/ coated by silver shows fine particle and almost same size. The BES and element distribution photograph reveal the well distribution of silver in the samples. The XPS spectrum of LiFePO/sub 4/ surface reveals the existence and the valence of silver. Cyclic voltammetry curve show the only mechanism for lithium ion extraction/insertion in cathode material. Along with the increasing of current density, the capacity shows no obviously change, but electrode polarity effect was gradually increased. When cycled at current density of C, battery show large electrode polarity effect and low capacity. When decrease current density to C/10, battery delivers capacity of original values again. At the current density of C/8, battery was cycled 45 times, no obviously cycle fade can be observed.
语种	中文 ; 中文
出版者	Northwest Inst. Nonferrous Met. Res ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/20285]
专题	清华大学
推荐引用方式 GB/T 7714	Lu Junbiao,Le Bin,Tang Zilong,et al. Influence of silver coating on the structure and properties of LiFePO/sub 4/[J],2010, 2010.
APA	Lu Junbiao,Le Bin,Tang Zilong,Zhang Zhongtai,Li Junrong,&Shen Wanci.(2010).Influence of silver coating on the structure and properties of LiFePO/sub 4/..
MLA	Lu Junbiao,et al."Influence of silver coating on the structure and properties of LiFePO/sub 4/".(2010).

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