1results about How to "Maintain speed" patented technology

The application relates to a battery SOH estimation method and device, electronic equipment and a storage medium, wherein the method comprises the following steps: establishing a sample battery capacity attenuation prediction database comprising the ratio relationship between different capacity attenuation rates of sample batteries in different preset working temperatures, different preset working current multiples and different SOH intervals; obtaining an actual temperature attenuation rate ratio and an actual current attenuation rate ratio according to the historical SOH value and the actual working condition of a battery to be measured; converting the actual unit time content change amount of the battery to be measured into a reference unit time content change amount under a reference working temperature and a reference working current multiple; and obtaining the current SOH of the battery according to the battery capacity attenuation prediction database. Compared with the prior art, the application can maintain the accuracy and estimation speed of SOH estimation under any working temperature, any working current multiple and any service life.