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发明公开
CN109001632A 一种用于对补锂电池阶段寿命进行预测的方法及系统 有权

一种用于对补锂电池阶段寿命进行预测的方法及系统
摘要：
本发明公开了用于对补锂电池阶段寿命进行预测的方法及系统，在恒温环境中，将补锂电池静置预设的时间后，对补锂电池进行恒流充电；对补锂电池进行恒流放电；对补锂电池多次循环进行的充电步骤和放电步骤；根据补锂电池多次循环进行的充电步骤和放电步骤，取预定循环周数进行微分处理，获取预定循环周数的微分电容曲线；根据预定循环周数的微分电容曲线，建立电位差与循环次数的曲线；获取电位差和循环次数的关系式；建立电位差与循环次数对应的微分电容的曲线；获取电位差和电容的关系式；设置衰减后的电容，根据获取的与衰减后的电容对应的电位差以及与衰减后的电容对应的电位差和循环次数的关系式，获取补锂电池的循环次数，即完成了此阶段的寿命预测。
摘要（英）：

The present invention discloses a method and a system for prediction of a compensation lithium battery phase life. In a constant temperature environment, after compensation lithium battery is subjected to standing for preset time, performing constant-current charge for the compensation lithium battery; performing constant-current discharge for the compensation lithium battery; performing a chargestep and a discharge step which are cycled for the compensation lithium battery for many times; taking the predetermined number of cycle circles to perform differential processing according to the charge step and the discharge step which are cycled for the compensation lithium battery for many times; obtaining a relation of the potential difference and the number of cycles; establishing a curve ofthe potential difference and differential capacitance corresponding to the number of cycles; obtaining a relation of the potential difference and the capacitance; and setting the capacitance after attenuation, obtaining the number of cycles of the compensation lithium battery according to the obtained potential difference corresponding to the capacitance after attenuation and the relation of thepotential difference corresponding to the capacitance after attenuation and the number of cycles, namely completing the life prediction of this phase.

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