Bipolar plate, redox flow battery, and method for producing bipolar plate
US-2017047594-A1 · Feb 16, 2017 · US
Redox flow battery cell, redox flow battery cell stack, and redox flow battery
US2019237791A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019237791-A1 |
| Application number | US-201715774711-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 8, 2017 |
| Priority date | Sep 8, 2017 |
| Publication date | Aug 1, 2019 |
| Grant date | — |
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Abstract
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A redox flow battery cell includes a positive electrode, a negative electrode, and a membrane interposed between the positive electrode and the negative electrode. The positive electrode and the negative electrode have an overlapping region where the positive electrode and the negative electrode overlap each other with the membrane therebetween, and at least one of the positive electrode and the negative electrode has a non-overlapping region where the positive electrode and the negative electrode do not overlap each other with the membrane therebetween. The total area of the non-overlapping region is 0.1% to 20% of the area of the overlapping region.
First claim
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1 . A redox flow battery cell comprising a positive electrode, a negative electrode, and a membrane interposed between the positive electrode and the negative electrode, wherein the positive electrode and the negative electrode have an overlapping region where the positive electrode and the negative electrode overlap each other with the membrane therebetween, and at least one of the positive electrode and the negative electrode has a non-overlapping region where the positive electrode and the negative electrode do not overlap each other with the membrane therebetween, and wherein the total area of the non-overlapping region is 0.1% to 20% of the area of the overlapping region. 2 . The redox flow battery cell according to claim 1 , wherein each of the positive electrode and the negative electrode has the non-overlapping region. 3 . The redox flow battery cell according to claim 1 , wherein the positive electrode has an area equivalent to that of the negative electrode. 4 . The redox flow battery cell according to claim 1 , wherein the positive electrode and the negative electrode each have a thickness of 0.05 mm or more. 5 . The redox flow battery cell according to claim 1 , wherein the positive electrode and the negative electrode each have an area of 250 cm 2 or more. 6 . A redox flow battery cell stack comprising the redox flow battery cells according to claim 1 , the redox flow battery cells being repeatedly stacked. 7 . A redox flow battery comprising the redox flow battery cell according to claim 1 . 8 . A redox flow battery comprising the redox flow battery cell stack according to claim 6 .
Assignees
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Classifications
- H01M8/18Primary
Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells · CPC title
with liquid, solid or electrolyte-charged reactants · CPC title
- H01M8/188Primary
by recharging of redox couples containing fluids; Redox flow type batteries · CPC title
Comprising electrode layers with interposed electrolyte compartment with possible electrolyte supply or circulation · CPC title
Fuel cells · CPC title
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- What does patent US2019237791A1 cover?
- A redox flow battery cell includes a positive electrode, a negative electrode, and a membrane interposed between the positive electrode and the negative electrode. The positive electrode and the negative electrode have an overlapping region where the positive electrode and the negative electrode overlap each other with the membrane therebetween, and at least one of the positive electrode and th…
- Who is the assignee on this patent?
- Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification H01M8/18. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 01 2019 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).