摘要
锂/二氧化硫(Li-SO2)单体电池在实际应用中多以电池组形式存在,当电池组工作时会因自身发热引起温度过高,因此需要对电池组进行热设计。比热容作为重要的热物性参数之一,通常由试验获得。文中在前期研究基础上,在3个方面进行了改进:采用变压器油为冷却工质;设计尼龙材料容器用于系统保温;通过黄铜确定试验装置的散热损失。针对未放电及2种放电时间后的Li-SO2单体电池进行了比热容测试。试验结果表明:该方案合理可行,具有测量精度高、易于实现的特点;电池放电后比热容会发生变化,应在热设计中给予考虑。
Lithium/sulfur dioxide（Li-SO2） single cell usually presents as battery pack in practical application.Because the temperature caused by self-heating of the battery pack during discharging process is very high,specific thermal design is required.As one of the important thermodynamics parameters,specific heat capacity of battery is usually obtained by test.Based on preliminary studies,improvement is made in the following three aspects in this paper： transformer oil is employed for cooling,the test equipment of nylon material is designed for insulation,the thermal loss of the test devices is determined through brass test.Tests of specific heat capacity based on Li-SO2 battery conducted before and after discharging are carried out.The results show that the scheme is feasible and reasonable;it has the features of high accuracy and easy implement.Specific heat capacity of the battery will change after discharging,which should be considered in thermal design.
出处
《电子机械工程》
2011年第6期1-3,共3页
Electro-Mechanical Engineering
关键词
锂/二氧化硫电池
比热容
放电
试验
lithium/sulfur dioxide battery
specific heat capacity
discharging
test
