摘要
为了研究磷酸铁锂锂电池在低温环境下的充放电性能,文章采用不同温度条件进行实验测试,分析其容量、效率和电压平台的变化。结果表明,低温显著降低了电池的充放电性能,表现为锂离子迁移速率减缓、内部阻抗增加及电池输出功率下降。分析认为,通过优化电解液和改进电池设计,可有效改善低温下的电池性能,提升其在极端环境中的应用效果。
In order to study the charging and discharging performance of lithium iron phosphate batteries in low-temperature environments,this paper conducts experimental tests under different temperature conditions,analyzes the changes in capacity,efficiency,and voltage platform.The results showed that low temperature significantly reduced the charging and discharging performance of the battery,manifested as a slowing down of lithium ion migration rate,an increase in internal impedance,and a decrease in battery output power.Analysis suggests that optimizing the electrolyte and improving battery design can effectively improve battery performance at low temperatures and enhance its application effectiveness in extreme environments.
作者
曹虎山
徐晓玲
CAO Hushan;XU Xiaoling(Xingdong(Hebei)Lithium Battery Technology Co.,Ltd.,Xingtai 054001,China)
关键词
磷酸铁锂电池
低温环境
充放电性能
lithium iron phosphate battery
low temperature environment
charge and discharge performance
