Active material and fluoride ion battery

Patent metadata

Field	Value
Publication number	US-10811677-B2
Application number	US-201715821992-A
Country	US
Kind code	B2
Filing date	Nov 24, 2017
Priority date	Dec 22, 2016
Publication date	Oct 20, 2020
Grant date	Oct 20, 2020

Abstract

An active material has a favorable capacity property. The active material is to be used for a fluoride ion battery, the active material including a crystal phase having a perovskite structure, and represented by ABO3 or a fluoride of the ABO3, in which the A and the B are different metal elements; the A includes at least one kind of a metal element belonging to Group 2 and Group 3 in the periodic table; and the B includes at least one kind of a transition metal element belonging to Period 4 to Period 6 in the periodic table.

First claim

What is claimed is:

1. A fluoride ion battery comprising a cathode active material layer containing a cathode active material, an anode active material layer containing an anode active material, and an electrolyte layer formed between the cathode active material layer and the anode active material layer,
wherein the cathode active material or the anode active material is an active material comprising:
a crystal phase having a perovskite structure, and the crystal phase having a composition of ABO 3 or ABO 3-x F y where X=0 and Y is a number more than 0, in which the A and the B are different metal elements; the A includes at least one kind of a metal element belonging to Group 2 and Group 3 in the periodic table; and the B includes at least one kind of a transition metal element belonging to Period 4 to Period 6 in the periodic table.

2. The fluoride ion battery according to claim 1 , wherein the A includes at least one of Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Nd, and Sm.

3. The fluoride ion battery according to claim 1 , wherein the B includes at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Zr, Nb, Mo, Ru, and W.

4. The fluoride ion battery according to claim 3 , wherein the B includes Co.

5. The fluoride ion battery according to claim 1 , wherein the crystal phase has a composition of ABO 3 .

6. The fluoride ion battery according to claim 1 , wherein the crystal phase has a composition of ABO 3-x F y where X=0 and Y is a number more than 0.

7. The fluoride ion battery according to claim 1 , wherein A includes at least one of Mg, Ca, Sr, Sc, Y, La, Ce, Nd and Sm.

8. The fluoride ion battery according to claim 1 , wherein A includes at least one of Ca, Sr and La.

9. The fluoride ion battery according to claim 8 , wherein B includes at least one of Mn, Fe, Co and Ni.

10. The fluoride ion battery according to claim 1 , wherein A includes Ca, and B includes Mn.

11. The fluoride ion battery according to claim 1 , wherein A includes Sr, and B includes Mn.

12. The fluoride ion battery according to claim 1 , wherein A includes Sr, and B includes Fe.

13. The fluoride ion battery according to claim 1 , wherein A includes Sr, and B includes Co.

14. The fluoride ion battery according to claim 1 , wherein A includes La, and B includes Mn.

15. The fluoride ion battery according to claim 1 , wherein A includes La, and B includes Fe.

16. The fluoride ion battery according to claim 1 , wherein A includes La, and B includes Co.

17. The fluoride ion battery according to claim 1 , wherein A includes La, and B includes Ni.

18. The fluoride ion battery according to claim 1 , wherein a proportion of the crystal phase having the perovskite structure and the composition of ABO 3 or ABO 3-x F y where X=0 and Y is a number more than 0 with respect to all crystal phases included in the active material is 50 mol % or more.

Assignees

• Toyota Motor Co Ltd

Inventors

• Miki Hidenori

Classifications

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title

• H01M2300/0045

  Room temperature molten salts comprising at least one organic ion · CPC title

• H01M2300/0034

  Fluorinated solvents · CPC title

• H01M10/05

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

• H01M4/523

  for non-aqueous cells (H01M4/525 takes precedence) · CPC title