Cathode active material and fluoride ion battery

Patent metadata

Field	Value
Publication number	US-10483530-B2
Application number	US-201816157778-A
Country	US
Kind code	B2
Filing date	Oct 11, 2018
Priority date	Oct 20, 2017
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

a composition represented by CeSF.

First claim

The invention claimed is:

1. A cathode active material used in a fluoride ion battery, the cathode active material comprising:
a Ce element, a S element, and a F element; and
a composition represented by CeSF.

2. A cathode active material used in a fluoride ion battery, the cathode active material comprising:
a Ce element, a S element, and a F element; and
a crystal phase having a peak at a position of 2θ=25.4°±0.5°, 31.2°±0.5°, 41.0°±0.5°, 45.0°±0.5°, and 52.6°±0.5° in an X-ray diffraction measurement using a CuKα ray.

3. A fluoride ion battery comprising:
a cathode active material layer, an anode active material layer, and an electrolyte layer formed between the cathode active material layer and the anode active material layer;
wherein the cathode active material layer contains the cathode active material according to claim 1 .

4. A fluoride ion battery comprising:
a cathode active material layer, an anode active material layer, and an electrolyte layer formed between the cathode active material layer and the anode active material layer;
wherein the cathode active material layer contains the cathode active material according to claim 2 .

Assignees

• Toyota Motor Co Ltd

Inventors

• Miki Hidenori

Classifications

• C01F17/30 Primary

  Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 (C01F17/247 - C01F17/294 take precedence) · CPC title

• H01M10/05

  Accumulators with non-aqueous electrolyte (H01M10/39 takes precedence) · CPC title

• H01M4/5815 Primary

  Sulfides · CPC title

• H01M2004/028

  Positive electrodes · CPC title

• H01M4/582

  Halogenides · CPC title