# US 2022/0285683 A1 · Negative electrode active material, negative electrode layer, and fluoride ion secondary battery

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- Number: US 2022/0285683 A1
- Document ID: US20220285683A1
- Status: Published application
- Kind: A1
- Application number: 17/577,017
- Filed: 2022-01-17
- Published: 2022-09-08
- Earliest claimed: 2021-03-03
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Akihisa TANAKA; Yoshiyuki MORITA
- Web page: https://patentgrep.com/patent/US20220285683A1

## CPC

- H01M 4/582: {Halogenides}
- H01M 4/362: {Composites}
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 10/054: Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
- H01M 2004/027: {Negative electrodes}
- 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 a negative electrode active material including AlF3, Li3AlF6, and Li2ZrF6. Furthermore, a negative electrode layer including the negative electrode active material is provided. Additionally, a fluoride ion secondary battery, including the negative electrode layer, an electrolyte, and a positive electrode layer is provided.

## Claims

### Claim 1

A negative electrode active material comprising AlF3, Li3AlF6, and Li2ZrF6.

### Claim 2 (depends on 1)

The negative electrode active material according to claim 1, comprising a composite of AlF3, Li3AlF6, and Li2ZrF6.

### Claim 3 (depends on 1)

A negative electrode layer, comprising the negative electrode active material according to claim 1.

### Claim 4 (depends on 3)

A fluoride ion secondary battery, comprising the negative electrode layer according to claim 3, an electrolyte, and a positive electrode layer.