锂离子电池硅纳米线负极材料研究

doi:10.61558/2993-074X.1955

电化学（中英文） ›› 2009, Vol. 15 ›› Issue (1): 56-61. doi: 10.61558/2993-074X.1955

锂离子电池硅纳米线负极材料研究

傅焰鹏;陈慧鑫;杨勇;

厦门大学固体表面物理化学国家重点实验室化学化工学院化学系;

收稿日期:2009-02-28 修回日期:2009-02-28 出版日期:2009-02-28 发布日期:2009-02-28

Silicon Nanowires as Anode Materials for Lithium Ion Batteries

FU Yan-peng,CHEN Hui-xin,YANG Yong

(State Key Lab for Physical Chemistry of Solid Surfaces and Department of Chemistry,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,Fujian,China

Received:2009-02-28 Revised:2009-02-28 Published:2009-02-28 Online:2009-02-28

摘要/Abstract

摘要： 采用涂膜法和直接生长成膜法分别制备两种硅纳米线电极.XRD、SEM和充放电曲线表征、观察和测定材料嵌锂状态过程的结构、形貌及电化学性能.与涂膜法相比,直接生长成膜法制备的硅纳米线电极具有较高的比容量、良好的循环寿命及较好的倍率性能;直接生长成膜法制备的硅纳米线电极,其嵌锂过程硅由晶态逐渐转变为非晶态,且其纳米线直径逐渐增大,但线状结构仍保持完好,进而防止了电极粉化和脱落.

关键词: 硅, 纳米线, 负极材料, 锂离子电池, 电化学性能, 涂膜法, 直接生长成膜法

Abstract: The SiNWs electrodes were fabricated by coating and direct growth methods,respectively.The structure,morphology and electrochemical performance of such materials were characterized by XRD,SEM and charge-discharge tests.The results show that the electrodes prepared by direct growth method had higher capacity,better battery life and also displayed and excellent cyclability at higher currents.During the process of lithiation,the initial crystalline Si transformed to amorphous LixSi,and the average diameter of the SiNWs increased.Despite the large volume changed,the SiNWs remained intact and did not break into smaller particles.

Key words: Silicon, nanowires, anode materials, electroperformance, lithium-ion batteries, coating method, direct growth method

中图分类号:

TM912

傅焰鹏, 陈慧鑫, 杨勇, . 锂离子电池硅纳米线负极材料研究[J]. 电化学（中英文）, 2009, 15(1): 56-61.

FU Yan-peng, CHEN Hui-xin, YANG Yong. Silicon Nanowires as Anode Materials for Lithium Ion Batteries[J]. Journal of Electrochemistry, 2009, 15(1): 56-61.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.1955

https://electrochem.xmu.edu.cn/CN/Y2009/V15/I1/56

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锂离子电池硅纳米线负极材料研究

Silicon Nanowires as Anode Materials for Lithium Ion Batteries

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