锂亚电池SOC估算方法综述

Review of State of Charge Estimation Methods for Lithium Thionyl Chloride Battery

锂亚硫酰氯电池(简称"锂亚电池")由于其高工作电压、高比能量、高比功率以及宽工作温度等特点,被广泛应用于生产生活中。由于锂亚电池荷电状态(SOC)估算不能通过外部参数直接获得,所以需要对锂亚电池进行相关分析来估算电池的SOC,且锂亚电池SOC受环境温度、自放电率、老化等因素影响,因此精确估算锂亚电池SOC在实际使用中比较困难。综述目前常用的锂亚电池SOC估算方法,分析各种方法的优缺点以及适用范围,预测未来锂亚电池SOC估算方法的发展趋势。

Lithium thionyl chloride battery(referred to as ″lithium battery″) are widely used in production and life due to their high operating voltage, high specific energy, high specific power and wide operating temperature. Since the estimation of the state of charge(SOC) of lithium thionyl chloride battery cannot be obtained directly from external parameters, a relevant analysis of the lithium thionyl chloride battery is required to estimate the SOC of the battery. And the SOC of the lithium thionyl chloride battery is affected by factors such as ambient temperature, self-discharge rate and aging. Therefore, it′s difficult to accurately estimate the SOC of the lithium thionyl chloride battery in actual usage. The commonly used SOC estimation methods of lithium thionyl chloride battery are summarized, the advantages and disadvantages of various methods and the applicable scope are analyzed, and the development trend of future SOC estimation methods for lithium thionyl chloride battery is predicted.