论文标题
基于不同制造商的锂离子电池降解分析
Analysis of Lithium-ion Battery Cells Degradation Based on Different Manufacturers
论文作者
论文摘要
锂离子电池被认为是电动汽车驱动电动汽车并整合与网格连接的可再生能源资源的关键技术。这些应用程序的经济可行性受电池终生降解的影响。这项研究提供了来自三种不同制造商（Sony，Byd和Samsung）的锂离子电池细胞的广泛实验降解数据。 Sony和Byd细胞是LFP化学的，而三星细胞为NMC。由于日历和循环老化，量化了电池电池的容量褪色和电阻增加。电荷水平和温度被认为是影响日历老化的主要参数，而循环老化的排放深度，当前速率和温度。发现具有LFP化学的Sony和BYD细胞分别在30个月后的日历容量损失近5％和8％。此外，三星NMC电池在35C时3000个周期后达到80％的健康状况，排出深度为75％，这表明与其他两个具有相同条件的电池相比，循环寿命更好
Lithium-ion batteries are recognised as a key technology to power electric vehicles and integrate grid-connected renewable energy resources. The economic viability of these applications is affected by the battery degradation during its lifetime. This study presents an extensive experimental degradation data for lithium-ion battery cells from three different manufactures (Sony, BYD and Samsung). The Sony and BYD cells are of LFP chemistry while the Samsung cell is of NMC. The capacity fade and resistance increase of the battery cells are quantified due to calendar and cycle aging. The charge level and the temperature are considered as the main parameters to affect calendar aging while the depth of discharge, current rate and temperature for cycle aging. It is found that the Sony and BYD cells with LFP chemistry has calendar capacity loss of nearly 5% and 8% after 30 months respectively. Moreover, the Samsung NMC cell reached 80% state of health after 3000 cycles at 35C and 75% discharge depth suggesting a better cycle life compared to the other two battery cells with the same conditions
