The preparation method of Metal Substrate solid film lithium battery anode with interface-modifying layer

The present invention is a kind of preparation method of the Metal Substrate solid film lithium battery anode with interface-modifying layer, this method between metal substrate and positive electrode active material layer by having the solid film lithium battery anode part of the interface-modifying layer of certain thickness scope, during positive electrode active material layer annealing crystallization, chemically reacted with interface-modifying layer, so as to change the Elemental redistribution between metal substrate and positive electrode active material layer interface, microstructure and electrochemical properties, have the function that to improve solid film lithium battery chemical property, good interface-modifying layer has the reduction internal resistance of cell, improve battery capacity, enhancing substrate and positive electrode active material layer adhesive force and mitigate substrate harmful element by spreading the effect of positive electrode active material performance impact.