Electrolyte for redox flow battery and redox flow battery
US-9647290-B2 · May 9, 2017 · US
Electrolyte for redox flow battery and redox flow battery system
US9985311B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9985311-B2 |
| Application number | US-201515501150-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 9, 2015 |
| Priority date | Aug 1, 2014 |
| Publication date | May 29, 2018 |
| Grant date | May 29, 2018 |
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Abstract
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An electrolyte for a redox flow battery has a total concentration of arsenic ions and antimony ions of 15 mass ppm or less. In an example of the electrolyte for a redox flow battery, preferably, the concentration of the arsenic ions is 10 mass ppm or less. In another example of the electrolyte for a redox flow battery, preferably, the concentration of the antimony ions is 10 mass ppm or less.
First claim
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The invention claimed is: 1. An electrolyte for a redox flow battery having arsenic and antimony ions and having a total concentration of arsenic ions and antimony ions of 15 mass ppm or less, a concentration of vanadium ions of 1 to 3 mol/L, a concentration of free sulfuric acid of 1 to 4 mol/L, a concentration of phosphoric acid of 1.0×10 −4 to 7.1×10 −1 mol/L, a concentration of ammonium of 20 mass ppm or less, a concentration of silicon of 40 mass ppm or less, and the vanadium ions have an average valence of 3.3 to 3.7. 2. The electrolyte for a redox flow battery according to claim 1 , wherein the concentration of the arsenic ions is 10 mass ppm or less. 3. The electrolyte for a redox flow battery according to claim 1 , wherein the concentration of the antimony ions is 10 mass ppm or less. 4. A redox flow battery system comprising a redox flow battery to which the electrolyte for a redox flow battery according to claim 1 is supplied. 5. The redox flow battery system according to claim 4 , further comprising; a pipe for supplying and discharging the electrolyte for a redox flow battery to and from the redox flow battery; and a transparent portion provided in part of the pipe.
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Classifications
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Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins · CPC title
Details (electrodes H01M4/86 - H01M4/98) · CPC title
Fuel cells in stationary systems, e.g. emergency power source in plant · CPC title
- H01M8/188Primary
by recharging of redox couples containing fluids; Redox flow type batteries · CPC title
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- What does patent US9985311B2 cover?
- An electrolyte for a redox flow battery has a total concentration of arsenic ions and antimony ions of 15 mass ppm or less. In an example of the electrolyte for a redox flow battery, preferably, the concentration of the arsenic ions is 10 mass ppm or less. In another example of the electrolyte for a redox flow battery, preferably, the concentration of the antimony ions is 10 mass ppm or less.
- Who is the assignee on this patent?
- Sumitomo Electric Industries
- 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 May 29 2018 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).