Electrolytes for iron flow battery
US-2017179516-A1 · Jun 22, 2017 · US
Redox flow battery and method for operating a redox flow battery
US11769895B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11769895-B2 |
| Application number | US-201816618587-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 28, 2018 |
| Priority date | Jun 9, 2017 |
| Publication date | Sep 26, 2023 |
| Grant date | Sep 26, 2023 |
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Abstract
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Various embodiments include a method for operating an electrically rechargeable redox flow battery comprising a first chamber and a second chamber separated by a membrane, with the first chamber comprising a cathode and the second chamber comprising an anode. The method comprises: introducting a first electrolyte as catholyte into the first chamber; and introducing a second electrolyte as anolyte into the second chamber. At least one of the first electrolyte or the second electrolyte comprises a reduction-oxidation pair. The oxidation number of the reduction-oxidation pair is changed by addition of a first component.
First claim
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What is claimed is: 1. A method for operating an electrically rechargeable redox flow battery comprising a first chamber and a second chamber separated by a membrane, with the first chamber housing a cathode and the second chamber housing an anode, the method comprising: introducing a first electrolyte as catholyte into the first chamber; introducing a second electrolyte as anolyte into the second chamber; wherein at least one of the first electrolyte and the second electrolyte comprises a reduction-oxidation pair; measuring a residual capacity of the redox flow battery; and introducing a first amount of a first component to either the first chamber or the second chamber to change an oxidation number of the reduction-oxidation pair; wherein the first amount depends on the measured residual capacity. 2. The method as claimed in claim 1 , wherein the addition of the first component is carried out in a discharged state of the redox flow battery. 3. The method as claimed in claim 1 , wherein introducing a first amount of a first component includes using a first activating electrode in the first chamber and/or by a second activating electrode in the second chamber to convert polyoxometalate from an inactive form to an active form. 4. The method as claimed in claim 3 , wherein introducing a first amount of a first component includes using catalysts present on the first activating electrode and/or the second activating electrode. 5. The method as claimed in claim 3 , further comprising applying a voltage to the first and/or second activating electrode as a function of the residual capacity of the redox flow battery. 6. A method for operating an electrically rechargeable redox flow battery comprising a first chamber and a second chamber separated by a membrane, with the first chamber housing a cathode and the second chamber housing an anode, the method comprising: introducing a catholyte into the first chamber; introducing an anolyte into the second chamber; adding a first component to a first reduction-oxidation pair including a polyoxometalate in at least one of the first chamber and the second chamber; wherein the first component comprises at least one substance selected from the group consisting of: hydrazine, an alkali metal, a hydride, an aldehyde, sodium sulfite, sodium dithionite, and sodium thiosulfate.
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- What does patent US11769895B2 cover?
- Various embodiments include a method for operating an electrically rechargeable redox flow battery comprising a first chamber and a second chamber separated by a membrane, with the first chamber comprising a cathode and the second chamber comprising an anode. The method comprises: introducting a first electrolyte as catholyte into the first chamber; and introducing a second electrolyte as anoly…
- Who is the assignee on this patent?
- Siemens Ag, Litricity Gmbh
- 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 Tue Sep 26 2023 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).