CLAD FOIL-FREE BIPOLAR SOLID-STATE BATTERY CELL

A bipolar battery cell including A anode/bipolar current collectors comprising an aluminum foil layer. A first side of the aluminum foil layer includes lithium-aluminum alloy sublayer and a second side of the aluminum foil layer includes unreacted aluminum sublayer. S separators include a first side arranged adjacent to the first side of a corresponding one of the A anode/bipolar current collectors. C cathode active material layers include a first side arranged adjacent to the second side of a corresponding one of the A anode/bipolar current collectors and a second side arranged adjacent to the second side of a corresponding one of the S separators. A, C, and S are integers greater than one.