High charge rate, large capacity, solid-state battery

Patent metadata

Field	Value
Publication number	US-2018294527-A1
Application number	US-201715818286-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:
an array of solid-state thin-film batteries located on a surface of a substrate, wherein each solid-state thin-film battery of the array of solid-state thin-film batteries comprises a bottom electrode, a battery cell material stack and a top electrode; a fuse element in proximity to each solid-state thin-film battery of the plurality of solid-state thin-film batteries, wherein each fuse element has a first end connected to the bottom electrode of one of the solid-state thin-film batteries and a second end connected to a first bus bar, wherein the first bus bars are located on the substrate; and at least one second bus bar located above, and spaced apart from, each first bus bar, wherein the at least one second bus bar contacts a surface of the top electrode of each solid-state thin-film battery.

2 . The solid-state battery structure of claim 1 , wherein the battery cell material stack comprises a cathode and a solid-state electrolyte.

3 . The solid-state battery structure of claim 2 , wherein the battery cell material stack further comprising an anode region located between the solid-state electrolyte and the top electrode.

4 . The solid-state battery structure of claim 3 , wherein the battery cell material stack is a lithium-based, wherein the cathode comprises a lithium-based mixed oxide, the solid-state electrolyte comprises a material that enables the conduction of lithium ions.

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

6 . The solid-state battery structure of claim 4 , wherein the anode region comprises a lithium ion generator or lithium intercalation active material.

7 . 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.

8 . The solid-state battery structure of claim 7 , wherein the each fuse element is selected from the groups consisting of indium, tin, gallium, and their alloys.

9 . The solid-state battery structure of claim 1 , wherein the at least one second bus bar is a single bus bar.

10 . The solid-state battery structure of claim 1 , wherein the at least one second bus bas comprises a plurality of spaced apart bus bars.

11 . The solid-state battery structure of claim 1 , further comprising a porous dielectric material encasing each fuse element.

12 . The solid-state battery structure of claim 11 , wherein the porous dielectric material is composed of porous carbon.

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

• H01M2200/103

  Fuse · CPC title

• H01M6/40

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

• H01M10/0436

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