Active thermal management method and system for prolonging service life of immersed liquid-cooled energy storage battery

The invention provides an active thermal management method and system for prolonging the service life of an immersed liquid-cooled energy storage battery, and the method comprises the steps: obtaining the current battery temperature information of the energy storage battery, combining the current battery temperature information with the historical battery temperature information of the energy storage battery, and predicting the temperature prediction information of the energy storage battery in a future time period through a pre-constructed temperature prediction model; fusing the current battery temperature information and the temperature prediction information as state information, inputting the state information into a pre-constructed temperature control strategy model, determining temperature control reward values of a plurality of temperature control actions corresponding to the state information, and taking the temperature control action with the maximum temperature control reward value as a target temp