摘要
放电容量和放电倍率是功率型锂离子动力电池的重要特性指标,均与环境温度紧密相关。实验结果表明,功率型锂离子动力电池的高倍率放电容量随温度的降低而迅速下降,随温度的升高基本保持不变;低温下的放电电压平台明显下降,随温度的升高有所上升,低温下的电压变化速度大于高温;在常温条件下,放电容量随倍率的升高而降低,但变化速度不如温度引起的变化明显。
The characteristics of power Lithium-ion batteries were closely connected to ambient temperature,such as discharge capacity and rate.The experiments results show that the discharge capacity in high rate of power lithium-ion battery drops sharply when the temperature goes down, only slightly change appears when the temperature goes up;the discharge voltage drops sharply under low temperature, and increases with a relatively slower rate than under low temperature when the temperature goes up; with normal temperature, the discharge capacity decrease with the rise of discharge rate, and the change rate is not obvious such as the affect by temperature.
出处
《电源技术》
CAS
CSCD
北大核心
2015年第10期2079-2081,共3页
Chinese Journal of Power Sources
关键词
锂离子电池
环境温度
容量
倍率
lithium-ion battery
ambient temperature
capacity
rate
