# US 2014/0193721 A1 · Aqueous electrolyte battery

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- Number: US 2014/0193721 A1
- Document ID: US20140193721A1
- Status: Published application
- Kind: A1
- Application number: 14/204,951
- Filed: 2014-03-11
- Published: 2014-07-10
- Earliest claimed: 2010-05-25
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Inventors: Koji SUTO
- Web page: https://patentgrep.com/patent/US20140193721A1

## CPC

- H01M 12/08: composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
- H01M 12/02: Details (of electrodes H01M4/00; of non-active parts H01M50/00)
- H01M 12/06: with one metallic and one gaseous electrode
- H01M 4/382: {Lithium (H01M4/405 takes precedence)}
- 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

An aqueous electrolyte battery is provided with a positive electrode, a negative electrolyte, an aqueous electrolyte, and a deposition portion that promotes deposition of discharge product and that is provided at a location that contacts the aqueous electrolyte and that is a location other than at a catalyst included in the positive electrode.

## Claims

### Claim 1

An aqueous electrolyte battery comprising:
a positive electrode that includes a positive electrode catalyst;
a negative electrode;
an aqueous electrolyte;
a case in which the positive electrode, the negative electrode and the aqueous electrolyte are housed;
a structure that is provided between the positive electrode and the negative electrode, and is configured to be impregnated with the aqueous electrolyte; and
crystal growth nuclei scattered about inside the structure.

### Claim 2 (depends on 1)

The aqueous electrolyte battery according to claim 1, wherein:
each of the crystal growth nuclei is a particle that is 0.5 μm to 3000 μm in size.

### Claim 3 (depends on 1)

The aqueous electrolyte battery according to claim 1, wherein:
each of the crystal growth nuclei is a fiber that is 0.5 μm to 3000 μm in length and is 0.1 μm to 1000 μm in diameter.

### Claim 4 (depends on 1)

The aqueous electrolyte battery according to claim 1, wherein:
the structure is constituted by a plurality of fibers, and
the crystal growth nuclei are provided between the plurality of the fibers.

### Claim 5 (depends on 1)

The aqueous electrolyte battery according to claim 1, wherein:
the structure is constituted by a plurality of films, and
the crystal growth nuclei are provided between the plurality of the films.