Li-B合金负极在熔盐电池中的放电特性  

Discharge characteristics of lithium-boron anode in molten salt battery

作　　者：刘超[1] 刘志坚[1] 黄海锋[1] 文佑才[1] 

机构地区：[1]中南大学粉末冶金研究国家重点实验室,湖南长沙410083

出　　处：《电源技术》2014年第4期717-720,共4页Chinese Journal of Power Sources

摘　　要：对Li-B合金在以Li-B合金-(LiF-LiCl-LiBr)/MgO-CoS2体系的熔盐电池中的放电特性进行了初步研究。结果表明,不同Li含量的样品,放电平台电压会随着放电温度的升高先升高后降低,而小电流密度和高放电温度均会导致电池放电容量的降低。负极中活性锂溶入熔盐电解质后与正极材料的反应是降低锂硼合金有效放电容量的主要原因。增加电解质用量可以有效提高电池放电容量。Discharge characteristics of lithium-boron anode in molten salt battery with system Li-B alloy- （LiF-LiCI-LiBr）/MgO-CoS2 were studied. It shows that, to different contents of Li samples, the discharge voltage increase firstly and then decrease with the temperature increase. A lower current density and higher discharge temperature can lead to the decrease of battery capacity. The active lithium in anode is dissolved in molten salt and reacted with cathode, which is the main factor to decrease the capacity of Li-B alloy anode. The increase of the electrolyte thickness can obviously improve the battery capacity.

关 键 词：热电池 锂硼合金 负极 放电特性 

分 类 号：TM911[电气工程—电力电子与电力传动]