Multi-functional porous carbon-supported microporous inorganic membranes for redox flow batteries

Patent metadata

Field	Value
Publication number	US-2017162881-A1
Application number	US-201615293385-A
Country	US
Kind code	A1
Filing date	Oct 14, 2016
Priority date	Oct 15, 2015
Publication date	Jun 8, 2017
Grant date	—

Abstract

A separator for a redox flow battery includes a support layer having a first side, and a zeolite layer formed on the first side of the support layer. The support layer includes a porous substrate that is a carbon substrate or a carbon coated substrate. A redox flow battery includes a first oxidizing reaction chamber, a second reducing reaction chamber, and a separator dividing said first oxidizing reaction chamber and said second reducing reaction chamber. The separator includes a zeolite layer formed onto a support layer. The support layer includes a porous substrate that is a carbon substrate or a carbon coated substrate.

First claim

What is claimed is:

1 . A redox flow battery comprising:
a first oxidizing reaction chamber; a second reducing reaction chamber; and a separator dividing said first oxidizing reaction chamber and said second reducing reaction chamber, said separator comprising a zeolite layer fixed to a support layer, said support layer comprising a porous substrate that is a carbon substrate or a carbon coated substrate.

2 . The redox flow battery of claim 1 , wherein said carbon coated substrate is coated with a carbon material selected from a group consisting of activated carbon, graphite nanoplates, carbon nanotubes, carbon nanofibers, graphene, and mixtures thereof.

3 . The redox flow battery of claim 1 , wherein said porous substrate is coated with an electrochemical catalyst.

4 . The redox flow battery of claim 1 , wherein said porous substrate includes a porous support layer selected from a group consisting of metals, ceramics, metalloids, and polymers.

5 . The redox flow battery of claim 1 , wherein said porous substrate comprises a carbon cloth coated with graphite nanoplate particles.

6 . The redox flow battery of claim 1 , wherein said support layer is an electrode.

7 . The redox flow battery of claim 1 , wherein said redox flow battery is one of a vanadium battery, a zinc-cerium battery, a zinc-bromine battery, an iron-chromium battery, a vanadium-bromine battery, a sodium-polysulfide-bromine battery, and an all-vanadium battery.

8 . A separator for a redox flow battery comprising:
a support layer having a first side, said support layer comprising a porous substrate that is a carbon substrate or a carbon coated substrate; and a zeolite layer formed on the first side of the support layer.

9 . The separator of claim 8 , wherein said carbon coated substrate is coated with a carbon material selected from the group consisting of activated carbon, graphite nanoplates, carbon nanofibers, carbon nanotubes, graphene, and mixtures thereof.

10 . The separator of claim 8 , wherein said porous substrate is coated with an electrochemical catalyst.

11 . The separator of claim 8 , wherein said porous substrate includes a porous support layer selected from the group consisting of metals, ceramics, metalloids, and polymers.

12 . The separator of claim 8 , wherein said porous substrate comprises a carbon cloth coated with graphite nanoplate particles.

13 . The separator of claim 8 , wherein said support layer is an electrode.

Assignees

• Univ Cincinnati

Inventors

• Dong Junhang
• Xu Zhi

Classifications

• H01M8/188

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

• H01M8/0234

  Carbonaceous material · CPC title

• H01M8/0236

  Glass; Ceramics; Cermets · CPC title

• H01M8/0245 Primary

  in the form of layered or coated products · CPC title

• Y02E60/50

  Fuel cells · CPC title