Quinone and hydroquinone based flow battery
US-2016248114-A1 · Aug 25, 2016 · US
Electrolyte including mixture of active material and precursor thereof
US11489184B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11489184-B2 |
| Application number | US-202117213282-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 26, 2021 |
| Priority date | Mar 26, 2020 |
| Publication date | Nov 1, 2022 |
| Grant date | Nov 1, 2022 |
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- Title
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Abstract
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An electrolyte including a mixture of hydroxynaphtoquinone and a precursor material thereof is provided. The electrolyte may achieve higher capacities.
First claim
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What is claimed is: 1. An electrolyte for an aqueous redox flow battery (ARFB), the electrolyte comprising a mixture of a compound represented by Formula (I) and a compound represented by Formula (II): wherein R 1 to R 4 are each independently selected from the group consisting of hydrogen, halogen, C 1 -C 3 alkyl, and C 1 -C 3 alkoxy, and M is a metal selected from the group consisting of Na, Li, and K; wherein the electrolyte is a basic aqueous solution. 2. The electrolyte of claim 1 , wherein a molar ratio of the compound represented by Formula (II) to the compound represented by Formula (I) ranges from 0.1 to 10. 3. The electrolyte of claim 1 , wherein the compound represented by Formula (I) has a lower molar concentration than the compound represented by Formula (II). 4. The electrolyte of claim 1 , wherein a molar ratio of the compound represented by Formula (II) to the compound represented by Formula (I) ranges from 1.5 to 3. 5. The electrolyte of claim 1 , wherein the compound represented by Formula (I) is a compound represented by Formula (III): wherein M is the same as defined in claim 1 . 6. The electrolyte of claim 1 , wherein the compound represented by Formula (II) is a compound represented by Formula (IV): 7. The electrolyte of claim 1 , wherein the electrolyte contains KOH. 8. An aqueous redox flow battery (ARFB) comprising the electrolyte of claim 1 . 9. The ARFB of claim 8 , wherein the electrolyte is used as a negative electrode electrolyte and ferrocyanide is used as a positive electrode electrolyte.
Assignees
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Classifications
containing doubly-bound oxygen atoms bound to the carbon skeleton · CPC title
Aqueous electrolytes · CPC title
- H01M8/08Primary
Fuel cells with aqueous electrolytes · CPC title
Fuel cells · CPC title
the other ring being six-membered, e.g. tetraline · CPC title
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- What does patent US11489184B2 cover?
- An electrolyte including a mixture of hydroxynaphtoquinone and a precursor material thereof is provided. The electrolyte may achieve higher capacities.
- Who is the assignee on this patent?
- Found Res & Business Seoul Nat Univ Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification H01M8/08. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 01 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).