COMPOSITE ELECTRODE MATERIALS

The invention discloses a composite electrode materials. The composite electrode materials of this invention includes at least one active material. The active material is coated an artificial passive film on its surface to effectively block the contact of the electrolyte and the active material to prevent unnecessary consumption of Li-ions. Also, there have a middle layer and an outer layer outside of the artificial passive film. Both of the middle layer and the outer layer are composed of the gel/liquid electrolyte and the solid electrolyte, but with different concentration ratios. Therefore, the better ion-conduction is achieved with reduced charge-transfer resistance and reduced amount of organic solvent.