NOVELTY - The device comprises a multilayer lithium battery comprising a porous anode layer, a porous cathode layer and a porous inorganic separator layer, a negative current collector connected to the second surface of the anode layer, and a positive current collector connected to the second surface of the cathode layer. The porous anode layer, the porous cathode layer and the inorganic separator layer have a first and a second surface. The first surface of the separator layer is integrally connected to the first surface of the cathode layer.    USE - The device comprising multilayer lithium battery such as lithium-ion battery (claimed), lithium air battery and galvanic cell is useful in plug-in hybrid electrical vehicles.    ADVANTAGE - The device comprising thin, chemical bonded multilayer lithium battery can be economically manufactured with high energy, durability and power density, superior thermal resistance and long service life in a safe manner.    DETAILED DESCRIPTION - The device comprises a multilayer lithium battery comprising a porous anode layer, a porous cathode layer and a porous inorganic separator layer, a negative current collector connected to the second surface of the anode layer, and a positive current collector connected to the second surface of the cathode layer. The porous anode layer, the porous cathode layer and the inorganic separator layer have a first and a second surface. The first surface of the separator layer is integrally connected to the first surface of the cathode layer. The second surface of the separator is integrally connected to the first surface of the anode layer. The multilayer lithium battery further comprises a lithium metal layer having a first and a second surface, an air electrode, and an anode current collector. The negative current collector is integrally connected to the second surface of the anode layer. The positive current collector is integrally connected to the second surface of the cathode layer. The inorganic separator has a thickness of 2-100 mu m and an average pore size of 10 nm to 1 mu m or 0.03-0.1 microns. The cathode layer has a thickness of 10-100 microns. The anode layer has a thickness of 10-100 microns. The negative current collector has a thickness of 5-25 microns. The electrolyte is dispersed in pores of the electrode and separator layers. The lithium metal layer has a thickness of 10-100 microns. An INDEPENDENT CLAIM is included for a method for fabricating a multilayer, lithium-ion battery.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a lithium-ion battery.    Anode (102)    Anode current collector (104)    Separator (106)    Cathode current collector (112)    Package. (114)