摘要
以电动汽车VRLA电池为研究对象,基于在电流范围（21～400A）和温度范围（-10～60℃）内的放电试验数据,对电池特性与温度的关系进行了描述和建模,对Peukert模型的适用性进行了分析.研究表明：该型铅蓄电池的最佳工作温度范围在0～45℃之间,在该温度范围内适用Peukert模型且具有优秀的倍率放电特性；随着温度降低,Peukert常数增大,放电能力逐渐降低；温度低于-10℃且电流大于300 A的放电过程不再符合Peukert模型；铅蓄动力电池的工作温度不宜超过45 ℃,否则电池的可用电量和效率都会降低,Peukert模型在高温放电工况下也不再适用.
The subject is 65 Ah valve-regulated lead-acid （VRLA） battery. Temperature＇ s influ- ence on available capacity, efficiency and OCV, were described and analyzed with model. For consideration of the coupling influences on Peukert model from current （21~400A） and tempera- ture （-10~60 ℃）, applicability of Peukert model was analyzed. The study shows that, 0~45 ℃ is the best working temperature scope of this VRLA 65Ah, and Peukert model is applicable to the 65Ah VRLA which demonstrate the excellent discharge ability at high-rate current. Peukert model is inapplicable to this VRLA 65Ah at the condition of temperature less than -10 ℃ and cur rent exceeds 300A. Available capacity and efficiency will descend on condition of temperature ex- ceeds 45 ℃, which is inapplicable to Peukert model.
出处
《电池工业》
CAS
2013年第1期33-37,共5页
Chinese Battery Industry
