【摘要】 为探究集装箱外环境温度变化和辐射对储能锂电池的综合热效应，选取位于严寒地区包头的某储能电站的45英尺高柜集装箱为原型进行渗入热量分析，并分析冬夏季集装箱外界对锂电池不同放电倍率运行和非运行状态下热特性的影响。结果表明，在锂电池运行状态下，随着电池放电倍率的增加，锂电池的最高温度逐渐趋于一致，冬季条件下，温升影响程度最大可达20.93%，夏季最大可达8.20%；在全天非运行状态下，冬夏季环境影响时间与锂电池温度变化呈线性关系，冬季影响24 h后，降低锂电池初始温度的43.6%；夏季影响24 h后，升高锂电池初始温度的11.4%。研究结果有助于预估储能锂电池在无热管理下的温度变化情况，为电池热管理技术设计提供参考。更多还原

【Abstract】 To investigate the comprehensive thermal effect of ambient temperature variation and radiation on energy storage lithium batteries within a container, a 45-foot high-cabinet container from an energy storage power station in Baotou(a severe cold region) was selected as the prototype for analyzing heat infiltration. The study also analyzed the influence of winter and summer ambient conditions on the thermal characteristics of lithium batteries under different discharge rates in both operating and non-operating states. The results show that during the operating state of lithium batteries, the maximum temperature gradually converges with the increase of discharge rate. Under winter conditions, the maximum influence of temperature rise reaches 20.93%, while in summer it reaches8.20%. In the all-day non-operating state, the relationship between ambient influence duration and lithium battery temperature change is linear: after 24 hours, the temperature decreases by 43.6%relative to the initial temperature in winter, and increases by 11.4% in summer. The results of the study can help predict the temperature change of lithium battery without thermal management, and provide a reference for the design of battery thermal management technology.更多还原