| 聚吡咯改性电沉积Sn负极材料的电化学性能 | |
| Electrochemical Performance of Polypyrrole Modified Electrodeposited Sn Anode | |
| 摘要: 本工作采用直接在铜箔表面恒电流电沉积的方法制备Sn负极，以NiCl2为沉积电解液的添加剂得到了Sn空心管，提高了单纯Sn负极的可逆比容量，60次循环后仍剩余184.3mAh·g-1。进一步引入聚吡咯进行表面修饰改性，有效地提高了沉积电极的电化学循环性能，60次循环后仍剩余440.6mAh·g-1可逆比容量，同时具备良好的循环稳定性。沉积电极可直接用作锂离子电池负极，无需任何粘结剂，电极装配操作简单。 | |
| 关键词: Sn负极材料 电沉积 聚吡咯 | |
| 基金项目: 国家自然科学基金(No.51373195)资助项目。 | |
| Abstract: Sn nanoparticles as anodes for lithium ion batteries were directly deposited on the surface of the copper foil under the constant current density. The hollow tubular Sn was obtained when using NiCl2 as the additive for the electrolyte in the process of the electrodeposition, thus the reversible specific capacity of Sn anodes was improved and the reversible capacity remained 184.3 mAh·g-1 after 60 cycles. The cycling stability was effectively improved when polypyrrole was used to modify the surface morphology of the deposited anodes. The product revealed an excellent cycling stability and high retention capacity of 440.6 mAh·g-1 after 60 cycles. Prepared electrodes could be directly used as anodes for lithium ion batteries without any binders. | |
| Keywords: Sn anode electrodeposition ploypyrrole | |
| 投稿时间：2013-09-22 修订日期：2014-02-16 | |
| 摘要点击次数: 1886 | |
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| 彭鹏,温兆银,刘宇,吴梅芬,杨建华.聚吡咯改性电沉积Sn负极材料的电化学性能[J].无机化学学报,2014,30(6):1293-1298. | |
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