High charge rate, large capacity, solid-state battery

Patent metadata

Field	Value
Publication number	US-2018294528-A1
Application number	US-201715818350-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 first battery level comprising an array of solid-state thin-film batteries located on a surface of a substrate and 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 in the first battery level has a first end connected to a bottom electrode of one of the solid-state thin-film batteries in the first battery level and a second end connected to a first bus bar that is present in the first battery level, wherein the first bus bars in the first battery level are located on the substrate; at least one second bus bar located above, and spaced apart from, each first bus bar present in the first battery level, wherein the at least one second bus bar contacts a surface of a top electrode of each solid-state thin-film battery in the first battery level; and a second battery level comprising an array of solid-state thin-film batteries located above the at least one second bus bar.

2 . The solid-state battery structure of claim 1 , further comprising a third battery level located on the second battery level, wherein the third battery level comprises an array of solid-state thin-film batteries and a fuse element in proximity to each solid-state thin-film battery of the plurality of solid-state thin-film batteries in the third battery level, wherein each fuse element in the third battery level has a first end connected to a bottom electrode of one of the solid-state thin-film batteries in the third battery level and a second end connected to a first bus bar present in the third battery level; and at least one second bus bar located on the third battery level.

3 . The solid-state battery structure of claim 2 , wherein each bottom electrode of the plurality of solid-state thin-film batteries present in the third battery level is in direct connect with one of the top electrodes within the second battery level, and the bottom electrodes of the plurality of solid-state thin-film batteries present in the third battery level are of the same type as the top tope electrodes of the plurality of solid-state thin-film batteries present in the second battery level.

4 . The solid-state battery structure of claim 1 , wherein each solid-state thin-film battery of the array of solid-state thin-film batteries in the first battery level comprises a bottom electrode, a battery cell material stack and a top electrode;

5 . The solid-state battery structure of claim 4 , the battery cell material stack comprises a cathode and a solid-state electrolyte.

6 . The solid-state battery structure of claim 5 , wherein the battery cell material stack further comprising an anode region located between the solid-state electrolyte and the top electrode.

7 . The solid-state battery structure of claim 6 , 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.

8 . The solid-state battery structure of claim 7 , wherein the anode region is composed of a plurality of lithium regions.

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

10 . 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.

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

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

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

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

15 . The solid-state battery structure of claim 14 , 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

• 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

• H01M10/0562

  Solid materials · CPC title

• H01M10/052

  Li-accumulators · CPC title