| 电化学法聚吡咯膜作锂二次电池正极的电池性能 |
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| 引用本文： | 任丽,陈晓凤,马建江.电化学法聚吡咯膜作锂二次电池正极的电池性能[J].高分子材料科学与工程,2010(1):133-136. |
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| 作者姓名： | 任丽 陈晓凤 马建江 |
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| 作者单位： | 河北工业大学高分子材料与工程研究所;天津爱尼机电有限公司; |
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| 基金项目： | 河北省自然科学基金资助项目(E2007000066) |
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| 摘 要： | 以电化学法制备的聚吡咯膜作正极,组装锂/聚吡咯(PPy)二次电池。运用CHI650B电化学工作站和LAND电池测试系统对电池性能进行测试和表征。结果表明,当充放电电流为0.05 mA,正极片成型压力为10 MPa时,电池的放电比容量和库仑效率随循环次数增加而缓慢增大,经过60个循环后放电比容量达到36 mAh/g,库仑效率为100%。电池的循环伏安曲线存在明显的氧化还原峰,且峰电流很大,说明PPy正极材料的氧化还原可逆性很好。采用电化学阻抗谱分析了电池的内部作用机理,为进一步提高电池综合性能提供理论依据。
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| 关 键 词： | 电化学法 聚吡咯膜 锂二次电池 正极 |
Polypyrrole Film Prepared by Electrochemical Method as Cathode of Lithium Secondary Batteries |
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| REN Li,CHEN Xiao-feng,MA Jian-jiang.Polypyrrole Film Prepared by Electrochemical Method as Cathode of Lithium Secondary Batteries[J].Polymer Materials Science & Engineering,2010(1):133-136. |
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| Authors: | REN Li CHEN Xiao-feng MA Jian-jiang |
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| Affiliation: | 1.Polymer Research Institute;Hebei University of Technology;Tianjin 300130;China;2.Tianjin Aini Mechanical & Electrical Co.;Ltd;Tianjin 300457;China |
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| Abstract: | Polypyrrole(PPy) film prepared by electrochemical method which was used for a lithium secondary battery cathode was investigated.The Li/PPy secondary batteries were measured by CHI650B electrochemical workstation system and LAND battery test system.When the constant current during charge/discharge test was 0.05 mA,molding pressure of the cathode was 10 MPa;specific discharge capacity and coulombic efficiency were increased with cycle numbers.The specific discharge capacity was 36 mAh/g and coulombic efficie... |
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| Keywords: | electrochemical method polypyrrole film lithium secondary battery cathode |
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