Calcium-metal alloy anode materials for reversible calcium-ion batteries

Patent metadata

Field	Value
Publication number	US-11901550-B2
Application number	US-201917287459-A
Country	US
Kind code	B2
Filing date	Oct 22, 2019
Priority date	Oct 25, 2018
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

Calcium ion batteries are provided. The calcium ion batteries include a cathode, an alloying anode composed of one or more intermetallic calcium compounds in electrical communication with the cathode; and an electrolyte disposed between the anode and the cathode. The intermetallic calcium compounds are intermetallic compounds of calcium and transition metals and metalloids.

First claim

What is claimed is:

1. A calcium ion battery comprising:
an anode comprising an intermetallic compound of calcium and a metal or metalloid, wherein the metal or metalloid is antimony, arsenic, copper, cadmium, bismuth, silver, gold, palladium, platinum, or CdCu 2 ;
a cathode in electrical communication with the anode; and
an electrolyte comprising a calcium salt disposed between the anode and the cathode.

2. The battery of claim 1 , wherein the intermetallic compound is an intermetallic compound of calcium and a pnictogen selected from the group consisting of arsenic, antimony, and bismuth.

3. The battery of claim 2 , wherein the pnictogen is arsenic.

4. The battery of claim 2 , wherein the pnictogen is antimony.

5. The battery of claim 2 , wherein the pnictogen is bismuth.

6. The battery of claim 1 , wherein the intermetallic compound is an intermetallic compound of calcium and a transition metal selected from the group consisting of palladium, platinum, gold, copper, cadmium, gold, and mercury.

7. The battery of claim 6 , wherein the transition metal is a noble metal selected from the group consisting of palladium, platinum, gold, and silver.

8. The battery of claim 7 , wherein the noble metal is palladium.

9. The battery of claim 7 , wherein the noble metal is platinum.

10. The battery of claim 7 , wherein the noble metal is gold.

11. The battery of claim 7 , wherein the noble metal is silver.

12. The battery of claim 6 , wherein the transition metal is copper.

13. The battery of claim 6 , wherein the transition metal is cadmium.

14. The battery of claim 6 , wherein the intermetallic compound is an intermetallic compound of calcium and CdCu 2 .

Assignees

• Univ Northwestern

Inventors

• Yao Zhenpeng
• Wolverton Christopher M

Classifications

• H01M4/381 Primary

  Alkaline or alkaline earth metals elements (H01M4/40 takes precedence) · CPC title

• C22C24/00

  Alloys based on an alkali or an alkaline earth metal · CPC title

• H01M10/054 Primary

  Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium · CPC title

• H01M2004/027

  Negative electrodes · CPC title

• H01M4/38

  of elements or alloys · CPC title