Small organic molecule based flow battery
US-2015243991-A1 · Aug 27, 2015 · US
Crossover resistant materials for aqueous organic redox flow batteries
US2023275251A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023275251-A1 |
| Application number | US-202318143221-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 4, 2023 |
| Priority date | Mar 12, 2018 |
| Publication date | Aug 31, 2023 |
| Grant date | — |
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Abstract
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An organic flow battery having a positive electrode electrolyte containing organic compounds with extended conjugation and/or cyclic side chains is provided. The flow battery includes a positive electrode and a positive electrode electrolyte including first solvent and a first redox couple. The positive electrode electrolyte flows over and contacting the positive electrode. The first redox couple includes a first organic compound and a reduction product of the first organic compound. The flow battery also includes a negative electrode and a negative electrode electrolyte including a second solvent and a second redox couple. The negative electrode electrolyte flows g over and contacts the positive electrode. Typically, an ion exchange membrane is interposed between the positive electrode and the negative electrode Characteristically, the first organic compound resists crossover through the ion exchange membrane.
First claim
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1 .- 10 . (canceled) 11 . A flow battery comprising: a positive electrode; a positive electrode electrolyte including water and a first redox couple, the positive electrode electrolyte flowing over and contacting the positive electrode, the first redox couple including a first organic compound and a reduction product of the first organic compound, a negative electrode; and a negative electrode electrolyte including water and a second redox couple, the negative electrode electrolyte flowing over and contacting the positive electrode; and an ion exchange membrane interposed between the positive electrode and the negative electrode, wherein the ion exchange membrane impedes crossover therethrough. 12 . The flow battery of claim 11 wherein the ion exchange membrane has a water content less than about 40 weight percent of the total weight of the ion exchange membrane. 13 . The flow battery of claim 11 wherein the ion exchange membrane has an acid equivalent weights greater than 1100 g/mole of protons. 14 . The flow battery of claim 11 wherein the ion exchange membrane is selected from the group consisting of perfluorohydrocarbon membranes and sulfonated hydrocarbon membranes with an arene or substituted arene backbone backbone. 15 . The flow battery of claim 14 wherein sulfonated hydrocarbon membranes are sulfonated polyether-ether ketone, sulfonated polyethersulfone, or polystyrene-sulfonic acid based membranes. 16 . The flow battery of claim 11 wherein the first redox couple including a first organic compound and a reduction product of the first organic compound such that the first organic compound resists crossover through the ion exchange membrane. 17 . The flow battery of claim 11 wherein the first organic compound has an acidity greater than the acidity of the ion exchange membrane.
Assignees
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Classifications
- H01M8/188Primary
by recharging of redox couples containing fluids; Redox flow type batteries · CPC title
containing at least two non-condensed six-membered aromatic rings in the carbon skeleton · CPC title
Fuel cells · CPC title
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- What does patent US2023275251A1 cover?
- An organic flow battery having a positive electrode electrolyte containing organic compounds with extended conjugation and/or cyclic side chains is provided. The flow battery includes a positive electrode and a positive electrode electrolyte including first solvent and a first redox couple. The positive electrode electrolyte flows over and contacting the positive electrode. The first redox coup…
- Who is the assignee on this patent?
- Univ Southern California
- What technology area does this patent fall under?
- Primary CPC classification H01M8/188. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 31 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).