过充循环老化电池产热特性

常修亮, 李希超, 贾隆舟, 韦守李, 王敬豪, 戴作强, 郑莉莉

Heat generation characteristics of overcharged cyclic aging batteries

Xiuliang CHANG, Xichao LI, Longzhou JIA, Shouli WEI, Jinghao WANG, Zuoqiang DAI, Lili ZHENG

表2 各电池不同SOC时熵热系数数值

Table 2 Entropy coefficient of batteries at different SOC

SOC 熵热系数/(mV/K) 新电池 4.3 V过充循环电池 4.4 V过充循环电池 4.5 V过充循 环电池 0% -0.457632187 0.009601148 0.010780082 0.281875018 10% -0.000498757 0.123093975 0.182931605 0.472242308 20% 0.030525829 0.196617704 0.13185504 0.426139291 30% 0.211809699 0.243988919 0.284177807 0.10451674 40% 0.223622073 0.254646717 0.284445764 0.538850326 50% 0.243044865 0.284940573 0.355354014 0.139143562 60% 0.463981558 0.274904826 0.466202484 0.204868333 70% 0.056183366 0.163246772 0.344983242 0.073815324 80% 0.139989921 0.193519893 0.387118317 0.13060799 90% 0.141328652 0.275153646 0.488052715 0.657287266 100% -0.000325855 0.11217643 0.132055479 -0.030355841