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US 2018/0294507 A1Published application
Thin Film Battery Structures Having Sloped Cell Sidewalls
AssigneeApple Inc.
InventorsShawn William Snyder, Tetsuya Ishikawa
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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.
Claims20
An electrochemical cell, comprising:
- an electrolyte layer between an anode layer and a cathode layer in a vertical direction, wherein the anode layer, the electrolyte layer, and the cathode layer include respective sidewalls exposed along a cell sidewall, and wherein the cell sidewall has a non-zero, non-vertical slope.
An electrochemical device, comprising:
- a first electrochemical cell, comprising:
- a first anode layer, a first electrolyte layer, a first cathode layer, and a first cathode current collector stacked in a vertical direction, wherein the first anode layer, the first electrolyte layer, and the first cathode layer include respective sidewalls exposed by removing material from the layers using an ablation process, and wherein the respective sidewalls of the first anode layer, the first electrolyte layer, and the first cathode layer are exposed and contiguous with each other along a first cell sidewall.
Dependencies are inferred from the claim text.