Described herein are various embodiments of binder and slurry compositions and methods of making a solid-state battery therefrom. An solid-state electrochemical cell may include a first electrode substrate with a separator layer that is continuously interleaved in an alternating pattern with a second electrode substrate. A method of making a solid-state electrochemical cell may include applying a separator layer to a first electrode substrate and continuously interleaving folded portions of the first electrode substrate with alternating folded portions of a second electrode substrate to form an electrochemical cell.