SOC estimation method based on full life aging model

The invention discloses an SOC estimation method based on a full-life aging model. The SOC estimation method comprises the following steps: S1, acquiring state parameters of an unaged battery cell; s2, aging the plurality of battery cells at different degrees, obtaining OCV-SOCad curves of the battery cells at different aging degrees, and forming an SOH-OCV-SOC table; s3, calculating relative capacity and relative impedance, and establishing an SOH aging model; s4, performing relative impedance compensation and aging OCV-SOC curve compensation, and establishing an SOC aging compensation module; s5, calculating the SOC of the whole life cycle; according to the scheme, the SOH aging model is introduced in the change of the OCV at the end of life, and the OCV curve is adjusted on line according to the actual aging level, so that the SOC calculation precision is improved. 本发明公开了一种基于全生命老化模型的SOC估算方法，包括以下步骤：S1：获取未老化电芯状态参数；S2：将若干电芯进行不同程度老化，获取不同老化程度电芯的OCV-SOCad曲线，形成SOH-OCV-SOC表；S3：计算相对容量和相对阻抗，建立SOH老化模型；S4：进行相对阻抗补偿和老化O