High charge rate, large capacity, solid-state battery

Patent metadata

Field	Value
Publication number	US-2018294530-A1
Application number	US-201715818405-A
Country	US
Kind code	A1
Filing date	Nov 20, 2017
Priority date	Apr 6, 2017
Publication date	Oct 11, 2018
Grant date	—

Abstract

Solid-state battery structures, particularly solid-state lithium-based battery structures, which are fast charging and have a high capacity are provided. Notably, fast charging, high capacity solid-state battery structures are provided that include a plurality of solid-state-thin-film batteries that are stacked one atop the other, or that include an array of interconnected solid-state thin-film batteries, or that contain a solid-state thin-film battery located on physically exposed surfaces of fin structures.

First claim

What is claimed is:

1 . A solid-state battery structure comprising:
a plurality of substrate layers and dielectric material layers stacked one atop the other, wherein each dielectric material layer includes a solid-state thin-film battery located therein, wherein each solid-state thin-film battery comprises at least a bottom electrode, a cathode, a solid-state electrolyte, and a top electrode; a first via-filled contact structure interconnecting each bottom electrode together; and a second via-filled contact structure interconnecting each top electrode together.

2 . The solid-state battery structure of claim 1 , further comprising an anode region located between the solid-state electrolyte and the top electrode.

3 . The solid-state film battery structure of claim 2 wherein the cathode comprises a lithium-based mixed oxide.

4 . The solid-state battery structure of claim 2 , wherein the anode region is composed of a plurality of lithium regions.

5 . The solid-state battery structure of claim 2 , wherein the anode region comprises a lithium ion generator or lithium intercalation active material.

6 . The solid-state battery structure of claim 1 , wherein each substrate layer comprises a semiconductor material.

7 . The solid-state battery structure of claim 1 , wherein the solid-state electrolyte is composed of a material that enables the conduction of lithium ions.

8 . The solid-state battery structure of claim 7 , wherein the material of the solid-state electrolyte is lithium phosphorus oxynitride (LiPON) or lithium phosphosilicate oxynitride (LiSiPON).

9 . The solid-state battery structure of claim 1 , wherein each dielectric material layer is composed of at least one material that is air impermeable, moisture impermeable or air and moisture impermeable.

10 . The solid-state battery of claim 2 , further comprising a lithium nucleation enhancement liner located between the solid-state electrolyte layer and the anode region.

11 . The solid-state battery of claim 10 , wherein the lithium nucleation enhancement liner is composed of gold (Au), silver (Ag), zinc (Zn), magnesium (Mg), tantalum (Ta), tungsten (W), molybdenum (Mo), a titanium-zirconium-molybdenum alloy (TZM), or silicon (Si).

12 . The solid-state battery of claim 1 , wherein each dielectric material layer has a topmost surface that is coplanar with a topmost surface of the top electrode that is present in the dielectric material layer.

Assignees

• IBM

Inventors

• De Souza Joel P
• Lee Yun Seog
• Li Ning
• Sadana Devendra K

Classifications

• H01M10/052

  Li-accumulators · CPC title

• H01M10/0472

  Vertically superposed cells with vertically disposed plates · CPC title

• H01M10/0463

  Cells or batteries with horizontal or inclined electrodes · CPC title

• H01M2200/103

  Fuse · CPC title

• H01M10/0436

  Small-sized flat cells or batteries for portable equipment · CPC title