锂-二氧化锰一次电池脉冲放电性能优化研究  

Optimization of pulse discharging performance of Li-MnO_(2) primary battery

作　　者：王铭 周川冀越 高剑 WANG Ming;ZHOU Chuanjiyue;GAO Jian(New Energy Materials Laboratory,Sichuan Changhong Electric Co.,Ltd.,Chengdu Sichuan 610041,China)

机构地区：[1]四川长虹电子控股集团有限公司新能源材料实验室,四川成都610041

出　　处：《电源技术》2021年第9期1175-1177,1184,共4页Chinese Journal of Power Sources

摘　　要：物联网芯片的工作模式决定了与之配套的终端电源需要同时满足大容量以及瞬时大电流脉冲放电性能。针对物联网终端电源的应用场景,对锂-二氧化锰一次电池正极极片制备工艺的优化进行了研究。采用涂布法制备了不同配方、厚度、孔隙率的极片,研究了极片孔隙率与厚度对电池脉冲放电性能的影响。结果表明,在同时满足容量与脉冲放电性能的条件下,极片的厚度存在最优值。对不同脉冲放电电流下的极限厚度进行的定量分析表明极限厚度与脉冲电流之间呈线性关系。The working mode of IoT chip determines that its power module should satisfy both large capacity and instantaneous high current pulse discharge performance.The preparation technology of cathodes for Li-MnO2 primary battery was optimized for the application of IoT power module.The electrodes with different components,thickness and porosity were prepared by using coating method.The effect of the porosity and thickness of the cathode on the pulse discharge performance was investigated.The test results show that there is the optimal thickness value when the capacity and pulse discharge performance could be both satisfied.The quantitative analysis of the critical thickness at different pulse discharge currents reveals a linear relationship between the critical thickness and pulse current.

关 键 词：锂-二氧化锰电池 物联网 脉冲放电 

分 类 号：TM91[电气工程—电力电子与电力传动]