Vanadium boride air multiple electron high capacity battery

Patent metadata

Field	Value
Publication number	US-9368846-B2
Application number	US-201113814904-A
Country	US
Kind code	B2
Filing date	Aug 10, 2011
Priority date	Aug 10, 2010
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

A battery and methods of forming vanadium boride nanoparticles of an anode within a battery, and a method for recharging an air battery. The battery comprises an anode and a cathode in electrochemical contact with each other through an electrically neutral ionic conductor (an electrolyte). The cathode may comprise a catalyst effective for the reduction of dissolved oxygen. An electrical discharge of the anode is performed via multiple electron oxidation of vanadium boride.

First claim

What is claimed is:

1. A battery comprising an anode and a cathode in electrochemical contact with each other through an electrically neutral ionic conductor wherein the anode comprises greater than or equal to 1% in weight of vanadium boride nanoparticles having a particle size greater than 100 nm.

2. The battery of claim 1 , wherein the cathode is an air cathode, wherein an electrical discharge of the cathode is performed via a reduction of oxygen.

3. The battery of claim 1 , wherein the vanadium boride nanoparticles are formed by using a mechanical synthesis process with grinding.

4. The battery of claim 3 , wherein the grinding is performed with a grinding medium media comprised of tungsten carbide or other material having a hardness comparable to that of the vanadium boride.

5. The battery of claim 1 , further comprising an extractable anode cassette, wherein the anode is disposed in the extractable anode cassette.

6. The battery of claim 5 , wherein the extractable anode cassette is formed of a predetermined surface area of approximately 1 cm 2 to 100 cm 2 .

7. The battery of claim 5 , wherein the extractable anode cassette is formed of a predetermined surface area of approximately 100 cm 2 to 10,000 cm 2 .

8. The battery of claim 1 , wherein vanadium boride salts of approximately 8 to 9 Mohs are used for forming the vanadium boride nanoparticles of the anode.

9. The battery of claim 1 , wherein the vanadium boride nanoparticles are formed from a 1:2 mole ratio of elemental vanadium and boron.

10. The battery of claim 1 , where the vanadium boride nanoparticles have a particle size greater than 100 nm and up to 1 micron.

11. The battery of claim 1 , where the vanadium boride nanoparticles have a particle size greater than 100 nm and up to about 500 nm.

12. The battery of claim 1 , wherein the vanadium boride nanoparticles further comprise an aliphatic carboxylic acid, a salt thereof, or any combination thereof.

13. The battery of claim 10 , wherein the vanadium boride nanoparticles further comprise an aliphatic carboxylic acid selected from the group consisting of propanoic acid, butyric acid, valeric acid, caproic acid, enanthic acid, caprylic acid, pelargonic carpric undecylic acid, lauric acid, tridecylic acid, myrstic acid, pentadecylic acid, palmitic acid, margaric acid, stearic acid, nonadecylic acid, arachidic acid, heneicosylic acid, behenic acid, tricosylic acid, lignoceric acid, pentacosylic acid, cerotic acid, heptacosylic acid, montanic acid, nonacosylic acid, merlissic acid, henatriacontylic acid, lacceroic acid, psyllic acid, geddic acid, cerosplastic acid, hexatriacontylic acid, a salt thereof, and any combination thereof.

Assignees

• Licht Stuart
• Univ George Washington

Inventors

• Licht Stuart

Classifications

• H01M4/5825

  Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines · CPC title

• B02C17/00

  Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls (high-speed drum mills B02C19/11 {; drums for polishing or grinding B24B}) · CPC title

• H01M12/08 Primary

  composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type · CPC title

• H01M10/44

  Methods for charging or discharging (circuits for charging H02J7/00) · CPC title

• B02C23/18

  Adding fluid, other than for crushing or disintegrating by fluid energy ({for tumbling mills B02C17/186;} feeding devices B02C23/02) · CPC title