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锂离子电池用锡铜合金负极的研究 被引量：2

Research on SnCu alloy anode for Li-ion batteries
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摘要 采用电沉积、表面修饰及热处理合金化的方法制备了锡铜合金负极,并组成Li|1 mol/L LiPF6/EC+DEC+DMC(体积比1∶1∶1)|SnCu扣式电池,测试了电极的电化学循环稳定性。负极表面修饰后,虽然首次放电比容量由415 mAh/g下降为316 mAh/g,但50次循环后的容量保持率由41%提高到70%,电极的循环性能得到改善。 The SnCu alloy anodes were prepared by the dectrodeposition, surface modification and heat treatment methods. The deetrochemical cycle stability of the deetrodes was tested by coin cell of Li｜ 1 mol/L LiPF6/EC ＋ DEC ＋ DMC（ 1 ： 1 ： 1, vol. ） ｜ CuSn. The discharge capacity retention increased from 41% to 70% after 50 cycles by surface modification of the anode, although the initial discharge specific capacity decreased from 415 mAh/g to 316 mAh/g, the cycle performance of the dectrode was improved.
作者 蒲薇华 任建国 何向明 万春荣 姜长印
机构地区 清华大学核能与新能源技术研究院
出处 《电池》 CAS CSCD 北大核心 2006年第1期10-12,共3页 Battery Bimonthly
基金 清华大学核研院基础研究基金资助项目(985-04-202-1)
关键词 锂离子电池 合金负极 表面修饰 循环性能 Li-ion battery alloy anode surface modifieation cycle performance
分类号 TM912 [电气工程—电力电子与电力传动]
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共引文献36

同被引文献21

  • 1刘廷禹,张启仁,庄松林.钨酸铅晶体中与铅空位有关的电子结构和色心模型研究[J].物理学报,2006,55(6):2914-2921. 被引量：4
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电池
2006年 第1期

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