摘要
首次从电池工艺的角度考察聚吡咯(PPy)导电聚合物膜对锂硫电池电性能的影响。主要采用真空蒸镀-化学氧化法在锂硫电池复合正极材料正极片表面生成聚吡咯(PPy)导电聚合物膜,通过SEM、傅里叶红外线光谱分析仪(FTIR)分析确定了锂硫电池复合正极材料正极片表面导电聚合物膜的存在。由该聚吡咯(PPy)导电聚合物膜修饰的正极片与未修饰的正极片分别组装成扣式锂硫电池进行电性能测试,发现:经导电聚合物膜修饰正极片组装电池与未修饰正极片组装电池相比充放电平台平稳,极化小,循环稳定性好。
The effects of conductive polymer membrane of polypyrrole （PPy） generated on the surface of lithium sulfur batteries cathode plate were studied by vacuum evaporation-chemical oxidation method. The existence of polypyrrole （PPy） conductive polymer membrane on the surface of lithium sulfur batteries cathode was analyzed by SEM and FTIR. The button lithium batteries were assembled with the cathode modified by the polypyrrole （PPy） conductive polymer membrane and the unmodified cathode. The test results show that the battery with modified cathode has smooth discharge platform, small polarization, and good cyclic stability.
作者
张会双
李向南
田栓宝
董红玉
杨书廷
ZHANG Hui-shuang;LI Xiang-nan;TIAN Shuan-bao;DONG Hong-yu;YANG Shu-ting(College of Physics and Materials Science,Henan Normal University,Xinxiang Henan 453007,China;School of Chemistry and Chemical Engineerng,Henan Normal University,Xinxiang Henan 453007,China;National and Local Joint Engineering Laboratory of Motive Power and Key Materials,Xinxiang Henan 453007,China;Collaborative Innovation Center of Henan Province for Motive Power and Key Materials,Xinxiang Henan 453007,China)
出处
《电源技术》
CAS
CSCD
北大核心
2018年第11期1646-1648,共3页
Chinese Journal of Power Sources
基金
河南省科技攻关计划(国际科技合作)(1621024100-47)
河南省重点科技攻关项目(162102210070)
新乡市科技发展规划项目(15GY02)
关键词
真空蒸镀-化学氧化法
锂硫电池
导电聚合物膜
vacuum evaporation-chemical oxidation method
lithium sulfur batteries
conductive polymer membrane
