Apple Inc.
Thin film battery structures having sloped cell sidewalls

Abstract:

Solid-state battery structures and methods of manufacturing solid-state batteries, such as thin-film batteries, are disclosed. More particularly, embodiments relate to solid-state batteries having a current collector tab between multiple electrochemical cells each having an electrolyte layer between an anode layer and a cathode layer in a vertical direction. The anode layer, the electrolyte layer, and the cathode layer include respective sidewalls exposed along a cell sidewall, and the cell sidewall has a non-zero, non-vertical slope.