摘要
针对锂离子电池在密闭电池舱段内大功率、长时间连续组合放电时会产生大量热量,可能严重影响电池舱段的工作效率和安全性能的问题,采用ANSYS软件对水下航行器电池舱段内部温度场分布建立了数学模型,并进行了仿真分析。仿真结果显示,水下航行器电池舱段以40 A连续工作2.5 h时,最高温度低于临界温度(150℃),表明锂离子电池组在该工况下能够维持热安全。
When a Li-ion battery bank discharges continuously at large power inside a sealed battery chamber for a long time, much heat energy will be produced and accumulated, which may cause batteries leaking, metamorphosing, exploding, and so on, and further decrease the efficiency and safety of the battery bank. So it is necessary to investigate the temperature field inside the chamber. This paper establishes a finite element model with the software ANSYS to simulate the temperature field distribution inside the battery chamber of an underwater vehicle. Simulation result indicates that the maximum temperature is lower than the critical temperature of 150 ℃ when the battery bank discharges for 2.5 hours at 40 A.
出处
《鱼雷技术》
2011年第4期295-298,共4页
Torpedo Technology
