高功率储备式一次锂锰电池正极的研究  

Research of cathode for high capacity reserve Li/MnO_2 batteries

作　　者：王子佳[1] 王兴贺[1] 牛长东 丁志强[1] 

机构地区：[1]中国电子科技集团公司第十八研究所,天津300384

出　　处：《电源技术》2015年第5期913-916,共4页Chinese Journal of Power Sources

摘　　要：研究了储备式锂二氧化锰电池正极的制备工艺。通过X射线衍射(XRD)对不同方法处理二氧化锰的结构进行表征,采用恒流放电及交流阻抗谱方法研究了不同正极制备工艺所得样品的电化学性能。结果表明,通过对正极活性物质二氧化锰的改进、正极基体和粘合剂的优化选择,电池在0.4 C放电倍率下,放电比容量可达到200 m Ah/g。The preparation of cathode for reserve Li/MnO2 battery was studied. XRD was used to analyze the structures of MnO2 samples synthesized by different methods. The electrochemical properties of the cathodes prepared using different methods were studied by constant current discharge test and alternating current impedance. The results reveal that the battery can deliver discharge specific capacity of 200 mAh/g at 0.4 C by modifying the MnO2 active material and optimizing the cathode matrix and binder.

关 键 词：锂一次电池 储备式 大功率 

分 类 号：TM911[电气工程—电力电子与电力传动]