Battery parameter estimation method and device and storage medium

The invention discloses a battery parameter estimation method and device and a storage medium, and relates to the technical field of electric digital data processing, the battery parameter estimation method comprises the following steps: determining an iteration parameter according to a Jacobian matrix corresponding to a battery parameter initial value, the battery parameter initial value being a historical battery parameter at a previous calculation moment; based on the iteration parameters and the historical battery parameters, battery parameters at the current calculation moment are determined, and the battery parameters comprise at least one of a concentration field variable, a potential field variable and a body current variable. According to the method and the device, the technical problem of long time consumption of battery state estimation under the working condition of relatively strong nonlinearity of battery parameters in related technologies is solved, so that the technical effects of reducing the calculation overhead and improving the battery state estimation efficiency are realized.