锂电池智慧储能巢热设计与仿真
Thermal design and simulation of intelligent energy storage nests for lithium battery
摘要：
对比了锂电池储能集装箱风冷与液冷2种冷却方案,结果发现液冷具有明显的技术方案优势和全寿命周期成本优势。通过对智慧储能巢和电池簇分别进行热仿真发现:锂电池自带的风扇在额定风量下运行效果较好,且电池簇间距对热仿真结果影响较小,但要考虑必要的安全距离;在满负荷放电时电池簇内的锂电池包间温度一致性较差,表明锂电池不适宜长时间满负荷运行;在部分负荷放电时电池簇内的锂电池包间温度一致性较好。
Abstract：
The two cooling schemes of air cooling and liquid cooling for lithium battery energy storage containers are compared in this paper. The results show that liquid cooling has obvious advantages in technical solutions and life cycle cost. Through the thermal simulation of the intelligent energy storage nests and the battery clusters, it is found that the self-contained fan of lithium battery has a better operation effect under the rated air volume, and the space between battery clusters has little influence on the thermal simulation, but it is necessary to retain the safety distance. The temperature consistency between the lithium battery packs in the battery cluster when discharging at full load is poor, which indicates that the lithium battery is not suitable for long-term full load operation. When discharging at partial load, the temperature consistency between the lithium battery packs in the battery cluster is good.
Keywords:lithium battery; intelligent energy storage nest; air cooling; liquid cooling; thermal design; simulation