为了量化温度对锂离子电池充放电性能的影响，研究了当温度为-5℃、25℃、50℃时电池的充放电性能，包括电池过放后的激活时间、电量充满时间、充电截止电压、充电截止电流、涓流时间，从锂离子电池化学反应平衡原理的角度进行了理论分析。电池放电过程受放电电流与放电时间的影响较大，从理论上设计了四种放电曲线模型，并从电池寿命的角度进行实验测试验证。结果表明，逐级阶梯式放电下的电池寿命均高于其他模型下的放电电池寿命，最大值为553次，相比其他模型提高了1.23倍。

In order to quantify the influence of temperature property on the charging and discharging via lithium battery, in this paper, the charging performance of the battery was studied at temperatures of-5 ℃, 25 ℃ and 50 ℃, which including reactivation time after over-discharge, time required for battery to be fully charged, limited charge voltage and current, time of trickle charging. Theoretical analysis is also carried out on chemical reaction equilibrium. The dis-charge process is greatly affected by the discharge current and time. Therefore, four discharge curve models are designed theoretically, and experimental tests are carried out. The results show that the battery life under the stepped type discharge was higher than that other models, the maximum value was 553 times, 1.23 times higher than others.