The invention provides a lithium ion battery charging control method, which comprises the following steps: firstly, measuring the maximum allowable charging ammeter of a target battery monomer at different temperatures and different SOCs, then measuring the charging ammeter with the maximum charging efficiency of the target battery monomer at different temperatures, and finally calculating the charging efficiency of the target battery monomer based on the parallel connection number of the target battery monomer in a lithium ion battery. The maximum allowable charging ammeter of the lithium ion battery at different temperatures and different SOCs and the charging ammeter of the lithium ion battery at the maximum charging efficiency at different temperatures are obtained, and when the lithium ion battery is charged at the target temperature, the specific charging current value is adjusted in real time according to the two charging ammeters of the lithium ion battery, so that the charging efficiency of the lithium ion battery is improved. According to the method, the number of influence variables is small, the time consumed in the optimization process is short, the method is not separated from the use working condition of the single battery, and the optimization effect of the charging efficiency can be improved.
本发明提供一种锂离子电池充电控制方法,该方法首先测定目标电池单体在不同温度、不同SOC下的最大允许充电电流表,然后测定目标电池单体在不同温度下的最大充电效率的充电电流表,再基于锂离子电池中目标电池单体的并联数,得到锂离子电池在不同温度、不同SOC下的最大允许充电电流表,以及锂离子电池在不同温度下最大充电效率的充电电流表,当锂离子电池在目标温度下进行充电时,根据锂离子电池的两个充电电流表,实时调整具体的充电电流值,实现充电效率的优化,该方法影响变量少、优化过程耗时短,且没有脱离电池单体的使用工况,能够提升充电效率的优化效果。
Lithium ion battery charging control method
一种锂离子电池充电控制方法
2024-02-20
Patent
Electronic Resource
Chinese
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