Most probable point screening method and device for lithium ion battery parameter identification result

The invention provides a most probable point screening method for a lithium ion battery parameter identification result, which comprises the following steps of: performing logarithmic processing on sample electrochemical parameters of a lithium battery; the sample electrochemical parameters comprise diaphragm length, positive active particle radius, negative active particle radius, positive diffusion coefficient, negative diffusion coefficient, positive interface reaction constant and negative interface reaction constant; according to the sensitivity of the sample electrochemical parameters, dimension reduction processing is carried out on the sample electrochemical parameters, and the sample electrochemical parameters after dimension reduction are obtained; normalizing the sample electrochemical parameters after dimension reduction, and converting common coordinates of the normalized sample electrochemical parameters into hypersphere coordinates; and screening most probable points based on the hypersphere co