Composite solid-state battery cell

A coated hybrid electrode, comprising:

• an anode current collector;
• a cathode current collector;
• an anode material coating disposed on the anode current collector, the anode material coating comprising an anode active material;
• a cathode material coating disposed on the cathode current collector, the cathode material coating comprising a cathode active material;
• a solid polymer electrolyte coating disposed between the anode material coating and the cathode material coating wherein the solid polymer electrolyte coating comprises a solid ionically conductive polymer material having a glassy state at room temperature and an ionic conductivity greater than 1×10−5 S/cm at room temperature;
• and
• a battery separator layer bifurcating the solid polymer electrolyte coating;
• wherein each of a first adhesion interface between the solid polymer electrolyte coating and the anode material coating and a second adhesion interface between the solid polymer electrolyte coating and the cathode material coating has a 180° peel strength of greater than 200 gf/in, and wherein the first adhesion interface permeates and extends into pores of the anode material coating;
• and the second adhesion interface permeates and extends into pores of the cathode material coating.

A coated hybrid electrode, comprising:

• an anode current collector;
• a cathode current collector;
• an anode material coating disposed on a first side of the anode current collector and on a second side of the anode current collector, the anode material coating comprising an anode active material;
• a cathode material coating disposed on a first side the cathode current collector and on a second side of the cathode current collector, the cathode material coating comprising a cathode active material;
• and
• a solid polymer electrolyte coating comprising a solid ionically conductive polymer material having a glassy state at room temperature and an ionic conductivity greater than 1×10−5 S/cm at room temperature, wherein the solid polymer electrolyte coating is positioned between the anode current collector and the cathode current collector, and wherein the solid polymer electrolyte coating forms an upper outer surface and a lower outer surface of the coated hybrid electrode, and wherein a first adhesion interface between the solid polymer electrolyte coating and the anode material coating permeates and extends into pores of the anode material coating;
• and a second adhesion interface between the solid polymer electrolyte coating and the cathode material coating permeates and extends into pores of the cathode material coating.