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Redox flow battery
US2018269513A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018269513-A1 |
| Application number | US-201515537605-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 15, 2015 |
| Priority date | Dec 22, 2014 |
| Publication date | Sep 20, 2018 |
| Grant date | — |
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Abstract
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A redox flow battery includes a battery cell including a positive electrode, a negative electrode, and a membrane disposed between these two electrodes; a positive electrode electrolyte supplied to the positive electrode; and a negative electrode electrolyte supplied to the negative electrode, wherein the positive electrode electrolyte contains manganese ions and a phosphorus-containing substance, the negative electrode electrolyte contains at least one species of metal ions selected from titanium ions, vanadium ions, chromium ions, and zinc ions, and a concentration of the phosphorus-containing substance is 0.001 M or more and 1 M or less.
First claim
Opening claim text (preview).
1 . A redox flow battery comprising: a battery cell including a positive electrode, a negative electrode, and a membrane disposed between these two electrodes; a positive electrode electrolyte supplied to the positive electrode; and a negative electrode electrolyte supplied to the negative electrode, wherein the positive electrode electrolyte contains manganese ions and a phosphorus-containing substance, the negative electrode electrolyte contains at least one species of metal ions selected from titanium ions, vanadium ions, chromium ions, and zinc ions, and a concentration of the phosphorus-containing substance is 0.001 M or more and 1 M or less. 2 . The redox flow battery according to claim 1 , wherein the positive electrode electrolyte further contains titanium ions. 3 . The redox flow battery according to claim 2 , wherein, in the positive electrode electrolyte, a concentration of the titanium ions is 5 M or less. 4 . The redox flow battery according to claim 1 , wherein the positive electrode electrolyte further contains at least one species of additive metal ions selected from magnesium ions, aluminum ions, cadmium ions, indium ions, tin ions, antimony ions, iridium ions, gold ions, lead ions, and bismuth ions. 5 . The redox flow battery according to claim 4 , wherein, in the positive electrode electrolyte, a concentration of the additive metal ions is 0.001 M or more and 1 M or less. 6 . The redox flow battery according to claim 1 , wherein the phosphorus-containing substance includes at least one of phosphoric acid and diphosphoric acid. 7 . The redox flow battery according to claim 1 , wherein the negative electrode electrolyte contains the phosphorus-containing substance and/or the manganese ions. 8 . The redox flow battery according to claim 1 , wherein concentrations of the manganese ions in the positive electrode electrolyte and the negative electrode electrolyte, and/or a concentration of the metal ions in the negative electrode electrolyte is 0.3 M or more and 5 M or less. 9 . The redox flow battery according to claim 1 , wherein the negative electrode electrolyte contains titanium ions. 10 . The redox flow battery according to claim 1 , wherein the positive electrode electrolyte further contains sulfuric acid.
Assignees
Inventors
Classifications
- H01M8/188Primary
by recharging of redox couples containing fluids; Redox flow type batteries · CPC title
Sulfuric acid-based · CPC title
Phosphoric acid-based · CPC title
Fuel cells · CPC title
Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells · CPC title
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- What does patent US2018269513A1 cover?
- A redox flow battery includes a battery cell including a positive electrode, a negative electrode, and a membrane disposed between these two electrodes; a positive electrode electrolyte supplied to the positive electrode; and a negative electrode electrolyte supplied to the negative electrode, wherein the positive electrode electrolyte contains manganese ions and a phosphorus-containing substan…
- 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 Thu Sep 20 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).