Li-MnO_2电池用EMD热处理温度的研究  

Study on heat treatment temperature of EMD used for Li-MnO_2 batteries

作　　者：刘建华[1] 杨建锋[1] 何献文[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《电池工业》2005年第3期140-143,共4页Chinese Battery Industry

摘　　要：Li-MnO2电池用电解二氧化锰(EMD)的热处理温度对电池的综合电气性能有较大的影响。采用XRD法研究了不同温度下热处理的EMD的晶相结构,并制备成电池测试了开路电压、短路电流、内阻以及恒流和脉冲放电性能。结果表明,在380℃温度下处理EMD获得的β-MnO2比在300℃～350℃温度下获得的γβ-MnO2更适合作为Li/MnO2电池的正极材料。The heat treatment temperature of EMD in Li-MnO2 batteries has great effects on comprehensive electrical performance of batteries. The crystal phase structure of EMD heated at different temperatures was studied by XRD. Also, the open-circuit voltage, short-circuit current, inner resistance and discharge performance at constant or pulse current of the batteries made of those treated EMD powders were tested. The results showed that β-MnO2 obtained by heating EMD at about 380℃was more suitable for Li-MnO2 batteries than γβ-MnO2 which was obtained at 300℃～350℃.

关 键 词：Li—MnO2电池 EMD 热处理温度 晶相结构 

分 类 号：TM911.15[电气工程—电力电子与电力传动]