Solid-state battery

Patent metadata

Field	Value
Publication number	US-2022013846-A1
Application number	US-202117487565-A
Country	US
Kind code	A1
Filing date	Sep 28, 2021
Priority date	Mar 29, 2019
Publication date	Jan 13, 2022
Grant date	—

Abstract

A battery that includes a substrate, a solid-state battery on the substrate, and a circuit for the solid-state battery on the substrate.

First claim

1 . A battery comprising:
a substrate; a solid-state battery on the substrate; and a circuit for the solid-state battery on the substrate.

2 . The battery according to claim 1 , wherein the circuit for the solid-state battery is on a main face of the substrate and the circuit extends in a plane direction of the main face.

3 . The battery according to claim 1 , wherein the circuit and the solid-state battery are adjacent to each other on the substrate.

4 . The battery according to claim 1 , wherein the circuit for the solid-state battery is at least one selected of a protection circuit, a charge control circuit, a temperature control circuit, an output compensation circuit, and an output stabilized power supply circuit.

5 . The battery according to claim 1 , further comprising:
a covering insulation layer covering a top face and a side face of the solid-state battery; and a covering inorganic film on the covering insulation layer.

6 . The battery according to claim 5 , wherein the covering inorganic film extends so as to exceed a surface of the substrate on which the circuit is located in a sectional view of the battery.

7 . The battery according to claim 5 , wherein both the covering inorganic film and the covering insulation layer extend so as to exceed a surface of the substrate on which the circuit is located in a sectional view of the battery.

8 . The battery according to claim 1 , wherein the substrate is a support substrate that supports both the solid-state battery and the circuit on a same surface thereof.

9 . The battery according to claim 1 , wherein the substrate includes wiring that electrically connects upper and lower faces of the substrate and is configured as a terminal substrate for an external terminal of the solid-state battery.

10 . The battery according to claim 1 , wherein the circuit is between the substrate and the solid-state battery.

11 . The battery according to claim 10 , further comprising a resin material between the substrate and the solid-state battery so as to fill a gap therebetween.

12 . The battery according to claim 10 , further comprising a conductive spacer between the substrate and the solid-state battery.

13 . The battery according to claim 12 , wherein the conductive spacer has a non-cleaning type member that does not require flux cleaning for soldering.

14 . The battery according to claim 9 , further comprising a conductive connecting member that connects an end face electrode of the solid-state battery and the wiring of the substrate to each other, wherein the circuit is positioned in a gap between the solid-state battery and the substrate formed by the conductive connecting member.

15 . The battery according to claim 5 , wherein the covering inorganic film is a metal film.

16 . The battery according to claim 5 , wherein the covering insulation layer contains a resin material.

17 . The battery according to claim 5 , wherein the substrate and the covering inorganic film are flush with each other on a bottom side face of an integrated body of the solid-state battery and the substrate.

18 . The battery according to claim 1 , wherein the substrate contains a ceramic.

19 . The battery according to claim 1 , wherein the solid-state battery is a sintered body.

20 . The battery according to claim 1 , wherein the solid-state battery includes a positive electrode layer and a negative electrode layer that are capable of storing and releasing a lithium ion.

Assignees

• Murata Manufacturing Co

Inventors

• Nishide Mitsuyoshi
• Kato Tomohiro
• Nagano Takayuki

Classifications

• H01M10/48

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title

• H01M50/574

  Devices or arrangements for the interruption of current · CPC title

• H01M50/55

  on the same side of the cell · CPC title

• H01M50/588

  outside the batteries, e.g. incorrect connections of terminals or busbars · CPC title

• H01M50/593

  Spacers; Insulating plates · CPC title