锂/二氧化硫电池稳态法导热系数试验研究

摘要

导热系数是描述物体热物理性能的主要指标。文中介绍了锂/二氧化硫电池的导热系数测试方法,在前期测试工作的基础上加入了热补偿部件、水冷散热系统等改进措施。对锂/二氧化硫电池进行了未放电和完全放电后电池的测试。测试结果表明：文中介绍的导热系数测试仪器测量结果可靠,精度较高;与未放电电池相比,完全放电后电池的导热系数明显减小。%Thermal conductivity is a leading parameter to describe the thermo-physical properties.The mea-surement method of the lithium/sulfur dioxide battery is introduced in this paper,with the thermal compensating part,liquid cooling system etc.are added based on the previous measurement.The lithium/sulfur dioxide battery is tested before discharge and after full discharge.The test result shows that the test of the apparatus for thermal conductivity introduced in this paper is reliable and accurate.Compared with the battery before discharge,the thermal conductivity of the battery after full discharge is evidently decreased.