Hydrogen-based battery

Patent metadata

Field	Value
Publication number	US-11923582-B2
Application number	US-201917290064-A
Country	US
Kind code	B2
Filing date	Oct 29, 2019
Priority date	Oct 29, 2018
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

Disclosed herein are batteries and methods of making batteries. The batteries disclosed herein generally comprise a cathode, an electrolyte capable of conducting protons and/or hydronium ions, and an anode comprising a material capable of absorbing protons and/or hydronium ions, wherein (i) the cathode is in contact with a cathode substance, or (ii) the electrolyte comprises a reduced cathode substance, or (iii) the cathode is in contact with a cathode substance and the electrolyte comprises a reduced cathode substance, and wherein the cathode substance is an oxide of one or more metals or an oxide of a halide.

First claim

The invention claimed is:

1. A method of making a battery, the method comprising contacting an electrolyte with an anode and a cathode, wherein:
the electrolyte is capable of conducting protons and/or hydronium ions and comprises (a) protons and/or hydronium ions and (b) a reduced cathode substance, the reduced cathode substance having a conjugate redox pair which is a cathode substance being an oxide of one or more metals or an oxide of a halide; and
the anode comprises a material capable of absorbing protons and/or hydronium ions:, and wherein

the cathode substance is MnO 2 and the reduced cathode substance is Mn 2+ ; or
the cathode substance is MnO 4 − and the reduced cathode substance is MnO 2 ; or
the cathode substance is PbO 2 and the reduced cathode substance is Pb 2+ ; or
the cathode substance is Bi 2 O 4 and the reduced cathode substance is BiO + ; or
the cathode substance is Cr 2 O 7 2− and the reduced cathode substance is Cr 3+ ; or
the cathode substance is VO 2 + and the reduced cathode substance is VO 2+ ; or
the cathode substance is ClO 4 − and the reduced cathode substance is ClO 3 − ; or
the cathode substance is BrO 3 − and the reduced cathode substance is Br 2 ; or
the cathode substance is IO 3 − and the reduced cathode substance is I 2 ;
wherein the anode comprises an electrically conductive substrate in contact with the material capable of absorbing protons and/or hydronium ions, wherein the material is brought into contact with the substrate by airbrushing a fluid containing the material onto the substrate; and
wherein the fluid containing the material capable of absorbing protons and/or hydronium ions comprises the material, a binder and a solvent.

2. The method according to claim 1 , wherein the method further comprises a step of depositing the cathode substance on the cathode.

3. The method according to claim 1 , wherein the method comprises associating protons and/or hydronium ions with the material capable of absorbing protons and/or hydronium ions.

4. The method according to claim 1 , wherein the binder is selected from the group consisting of nafion, polyvinylidene difluoride (PVDF), polytetrafluoroethylene (PVDF), carboxymethyl Cellulose (CMC), sulfonated poly(ether ether ketone) (SPEEK) and combinations thereof.

5. The method according to claim 1 , wherein the solvent is 2-propanol.

6. The method according to claim 1 , wherein the fluid containing the material further comprises an additive selected from acetylene black, XC-72R and a combination thereof.

7. The method according to claim 1 , wherein the fluid containing the material is in the form of a slurry.

Assignees

• Newsouth Innovations Pty Ltd

Inventors

• Zhao Chuan
• Guo Haocheng
• Zeng Yachao
• Ren Wenhao
• Su Zhen
• Peng Xuancheng

Classifications

• H01M8/188 Primary

  by recharging of redox couples containing fluids; Redox flow type batteries · CPC title

• H01M4/50

  of manganese · CPC title

• H01M4/8626

  characterised by the form · CPC title

• H01M4/96

  Carbon-based electrodes · CPC title

• H01M12/08

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