电源技术2019，Vol.43Issue(4)：568-570,684,4.
三元锂电池内阻特性的研究
Study on DC resistance characteristics of ternary lithium batteries
摘要
Abstract
2.9 Ah ternary lithium batteries were taken as the experimental object, the manual FreedomCAR power auxiliary hybrid battery test was taken as a reference. HPPC mix pulse current pulse power testing method was used to test different sizes, different pulse length under internal resistance in the process of charging and discharging. At the experiment temperature 25 ℃, it is concluded the changing rule of the resistance to charge and discharge condition. The experimental results show that with the increase of SOC, the internal resistance of the charge and discharge process tends to decrease, and the resistance of the process is higher than that of the resistance of the charging process. After SOC=0.3, the discharge process the R value of the resistance decreases with the increase of the pulse current. The resistance increases with the increase of the pulse time. The resistance R value of SOC=0.1 and SOC=0.2 is significantly greater than the R value of SOC=0.3 to SOC=0.9.关键词
锂电池/内阻/HPPC混合脉冲功率性能测试/脉冲电流/脉冲时间长度/电池荷电状态SOC/充电/放电Key words
lithium battery/internal resistance/HPPC hybrid pulse power performance testing/pulse current/pulse time length/SOC state of charge of battery/charge/discharge分类
信息技术与安全科学引用本文复制引用
武鑫,严晓,王影,黄碧雄,刘中财..三元锂电池内阻特性的研究[J].电源技术,2019,43(4):568-570,684,4.基金项目
上海市科委项目(15110501100) （15110501100）
上海工程技术大学新能源汽车协同创新建设设点"新能源汽车与动力电池"项目(2016xt02) （2016xt02）
