锂离子电池锡薄膜负极制备及电化学性能研究

doi:10.61558/2993-074X.2077

电化学（中英文） ›› 2011, Vol. 17 ›› Issue (1): 43-47. doi: 10.61558/2993-074X.2077

锂离子电池锡薄膜负极制备及电化学性能研究

白红美;陶占良;程方益;陈军;

南开大学新能源材料化学研究所先进能源材料化学教育部重点实验室;

收稿日期:2011-02-28 修回日期:2011-02-28 出版日期:2011-02-28 发布日期:2011-02-28

Preparation and Electrochemical Properties of Sn Thin Film as Anode Materials for Lithium-Ion Batteries

BAI Hong-mei,TAO Zhan-liang,CHENG Fang-yi,CHEN Jun

(Institute of New Energy and Material Chemistry,Key Laboratory of Advanced Energy Materials Chemistry-Ministry of Education,Nankai University,Tianjin 300071,China

Received:2011-02-28 Revised:2011-02-28 Published:2011-02-28 Online:2011-02-28

摘要/Abstract

摘要： 应用真空蒸发法在泡沫铜基底上制备锡薄膜负极.XRD、SEM分析表征薄膜的物相结构及其微观形貌,并测试了材料的电化学性能.结果表明,泡沫铜基底的三维结构增强了活性物质与基底的结合力.在同一基底温度下,锡颗粒随蒸发时间延长逐渐增大,电池电化学性能降低;而在同一时间内,升高基底温度,颗粒无明显变化,电池循环寿命有了很大提高.样品A″电池(基底温度:200℃,蒸发时间:0.5 h)经100次充放电循环后比容量仍达407.3 mAh·g-1.

关键词: 锂离子电池, 负极材料, 锡薄膜, 真空蒸发

Abstract: Sn thin films as the anode materials of Li-ion batteries were prepared by vacuum-evaporation method on the copper foam substrate.The phase structure,surface morphology and electrochemical property of the as-prepared films were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),and galvanostatic cycling.The results showed that three-dimensional structure of copper foam substrate enhanced the adhesion strength between the active material and the substrate,under the same substrate temperature,the particles became bigger with the increasing of evaporation time,while their electrochemical property decreased;under the same evaporation time,the particles didn′t changed obviously with the increasing of substrate temperature,while their cycle life increased.The battery of sample A″(substrate temperature:200 ℃,evaporation time:0.5 h) maintained a discharge capacity of 407.3 mAh·g-1 after 100 cycles.

Key words: lithium-ion battery, anode materials, tin thin film, vacuum evaporation

中图分类号:

TM912

白红美, 陶占良, 程方益, 陈军, . 锂离子电池锡薄膜负极制备及电化学性能研究[J]. 电化学（中英文）, 2011, 17(1): 43-47.

BAI Hong-mei, TAO Zhan-liang, CHENG Fang-yi, CHEN Jun. Preparation and Electrochemical Properties of Sn Thin Film as Anode Materials for Lithium-Ion Batteries[J]. Journal of Electrochemistry, 2011, 17(1): 43-47.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.2077

https://electrochem.xmu.edu.cn/CN/Y2011/V17/I1/43

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锂离子电池锡薄膜负极制备及电化学性能研究

Preparation and Electrochemical Properties of Sn Thin Film as Anode Materials for Lithium-Ion Batteries

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