中空硅纳米球锂离子电池负极材料的制备及电化学性能

doi:10.11896/j.issn.1005-023X.2018.11.004

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Abstract Si-Al nanoparticles (Si-Al NPs) possessed the nanocapsule structure with crystal Si shell and monocrystal Al core were prepared by DC arc-discharge plasma method. The hollow Si nanospheres (Si HNSs) were successfully obtained by subsequently removing the Al component from Si-Al NPs through acid pickling process. Both of Si-Al NPs and Si HNSs were investigated as the anode materials for lithium ion battery. The results indicated that electrochemical performances of Si HNSs electrode had been greatly improved compared with Si-Al NPs electrode, because the hollow space in Si nanosphere could provide an effective buffer space for volume change during the intercalation/deintercalation of lithium ions and supplies more migration channels for lithium ions.

Key words： hollow structure Si-Al nanoparticle lithium-ion battery Si anode DC arc-discharge plasma

Published: 20 July 2018

CLC number:

TM912.9

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	Articles by authors
	DING Ang
	ZHANG Zhongyuan
	CHENG Ting
	DONG Xinglong

Cite this article:

DING Ang,ZHANG Zhongyuan,CHENG Ting, et al. Synthesis of Hollow Si Nanospheres and Its Electrochemical Performances as Anode Material for Lithium-ion Batteries[J]. Materials Reports, 2018, 32(11): 1791-1794.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.11.004 OR http://www.mater-rep.com/EN/Y2018/V32/I11/1791

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