# US 11,444,323 B2 · All-solid-state battery

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,444,323 B2
- Document ID: US11444323B2
- Status: Granted
- Kind: B2
- Application number: 16/782,229
- Filed: 2020-02-05
- Published: 2020-08-20
- Granted: 2022-09-13
- Earliest claimed: 2019-02-18
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Yoshitaka Minamida
- Web page: https://patentgrep.com/patent/US11444323B2

## CPC

- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 10/0565: Polymeric materials, e.g. gel-type or solid-type
- H01M 10/044: {with bipolar electrodes}
- H01M 10/0463: {Cells or batteries with horizontal or inclined electrodes}
- H01M 10/0486: {Frames for plates or membranes}
- H01M 10/0562: Solid materials
- H01M 10/0585: of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
- H01M 2300/0068: inorganic
- H01M 2300/0082: Organic polymers
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

Provided is an all-solid-state battery configured to suppress the collapse of an end in the plane direction of an electrode laminate. Disclosed is an all-solid-state battery comprising an electrode laminate that comprises a cathode comprising a cathode layer, an anode comprising an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein a resin layer containing a polymer is disposed in at least a part of an end in a plane direction of the electrode laminate, the polymer having a self-healing function and a structure crosslinked via bonding between a host molecule and a guest molecule.

## Claims

### Claim 1

An all-solid-state battery comprising an electrode laminate that comprises a cathode comprising a cathode layer, an anode comprising an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer,
wherein a resin layer containing a polymer is disposed in at least a part of an end in a plane direction of the electrode laminate, the polymer having a self-healing function and a structure crosslinked via bonding between a host molecule and a guest molecule, and
wherein, before and after applying a predetermined confining pressure in a laminating direction to the electrode laminate, a first region covering at least a part of an end in a plane direction of the cathode of the resin layer and a second region covering at least a part of an end in a plane direction of the solid electrolyte layer of the resin layer, are attached to each other, and the second region and a third region covering at least a part of an end in a plane direction of the anode of the resin layer, are attached to each other,
wherein, the host molecule is at least one molecule selected from the group consisting of α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, and a molecule derived from any of these, and
wherein, the guest molecule is a molecule containing at least one selected from the group consisting of an n-butyl group, an n-hexyl group, an n-octyl group, an n-dodecyl group, a cyclododecyl group, an adamantyl group, a hydroxyl group substituted adamantyl group, an ethyl group-substituted adamantyl group and an isobornyl group.

### Claim 2 (depends on 1)

The all-solid-state battery according to claim 1, wherein a length of the resin layer in the plane direction of the electrode laminate is larger than a maximum elongation length in the plane direction of one end in the plane direction of each of the cathode, the solid electrolyte layer and the anode, which is a length resulting from applying the predetermined confining pressure in the laminating direction to the electrode laminate.

### Claim 3 (depends on 1)

The all-solid-state battery according to claim 1,
wherein, the host molecule is a-cyclodextrin, and
wherein the guest molecule is a molecule containing at least one selected from the group consisting of an n-butyl group, an n-hexyl group, an n-octyl group and an n-dodecyl group.

### Claim 4 (depends on 1)

The all-solid-state battery according to claim 1,
the host molecule is β-cyclodextrin, and
wherein, the guest molecule is a molecule containing at least one selected from the group consisting of an adamantly group, a hydroxyl group-substituted adamantyl group, an ethyl group-substituted adamantyl group and an isobornyl group.

### Claim 5 (depends on 1)

The all-solid-state battery according to claim 1,
wherein, the host molecule is γ-cyclodextrin, and
wherein, the guest molecule is a molecule containing at least one selected from the group consisting of an n-octyl group, an n-dodecyl group and a cyclododecyl group.