High charge rate, large capacity, solid-state battery

Patent metadata

Field	Value
Publication number	US-2018294526-A1
Application number	US-201715481042-A
Country	US
Kind code	A1
Filing date	Apr 6, 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

1 . A solid-state battery structure comprising:
a plurality of solid-state thin-film battery sub-sheets vertically stacked one atop the other; and a plurality of fuse elements located in proximity to the plurality of solid-state thin-film battery sub-sheets, wherein each solid-state thin-film battery sub-sheet of the plurality of solid-state thin-film battery sub-sheets is connected to one fuse elements, and the fuse elements of the plurality of fuse elements are configured to be in parallel with one another.

2 . The solid-state battery structure of claim 1 , wherein each solid-state thin-film battery sub-sheet of the plurality of solid-state thin-film battery sub-sheets comprises, from bottom to top, a substrate portion and a solid-state thin-film battery structure.

3 . The solid-state battery structure of claim 2 , wherein the solid-state thin-film battery structure comprises a bottom electrode, a cathode, a solid-state electrolyte, and a top electrode.

4 . The solid-state battery structure of claim 3 , wherein solid-state thin-film battery structure further comprising an anode region located between the solid-state electrolyte and the top electrode.

5 . The solid-state battery structure of claim 4 , wherein the solid-state thin-film battery structure is a lithium-based battery, wherein the cathode comprises a lithium-based mixed oxide, the solid-state electrolyte comprises a material that enables the conduction of lithium ions.

6 . The solid-state battery structure of claim 5 , wherein the anode region is composed of a plurality of lithium regions.

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

8 . The solid-state battery structure of claim 1 , further comprising a load, wherein the load has a first connection to the plurality of fuse elements and a second connection to the plurality of battery sub-sheets.

9 . The solid-state battery structure of claim 1 , wherein each fuse element is composed of a metal or metal alloy that melts when the battery is shunted and current is overflowed.

10 . The solid-state battery structure of claim 9 , wherein each fuse element is selected from the groups consisting of indium, tin, gallium, and their alloys.

11 .- 32 . (canceled)

Assignees

• IBM

Inventors

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

Classifications

• H01M10/052

  Li-accumulators · CPC title

• H01M6/40

  Printed batteries {, e.g. thin film batteries} · 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