Laser patterned solid-state batteries, and methods of making and using the same

Abstract

Solid-state battery cells and a method of making solid-state battery cells are disclosed. The method includes laser-patterning a cathode layer on a substrate to form a cathode for each cell, forming an insulator between cathodes that exposes an uppermost surface of each cathode, blanket-depositing a solid-state electrolyte layer on the cathodes and the insulator, blanket-depositing an anode current collector (ACC) layer on the electrolyte layer, and patterning the ACC layer and the electrolyte layer to form an electrolyte and an ACC in each cell. The cell includes a substrate, a cathode having sidewalls at an angle of 5-75°, an insulator surrounding a base of the cathode, a solid-state electrolyte on the cathode, an ACC on the electrolyte, an encapsulant on the ACC and the insulator, an insulator layer along one sidewall of the cell, and a redistribution layer on the encapsulant and the insulator layer, electrically contacting the ACC.

Dependencies are inferred from the claim text.