Redox flow battery

US2025210681A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2025210681-A1
Application numberUS-202318851928-A
CountryUS
Kind codeA1
Filing dateMar 16, 2023
Priority dateMar 31, 2022
Publication dateJun 26, 2025
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A redox flow battery that is charged and discharged by supply of a positive electrode electrolyte and a negative electrode electrolyte to a battery cell including a positive electrode, a negative electrode, and a diaphragm interposed between the positive electrode and the negative electrode, wherein the positive electrode electrolyte and the negative electrode electrolyte are molten salts, the positive electrode electrolyte contains a trivalent titanium ion and a tetravalent titanium ion, and the negative electrode electrolyte contains a divalent titanium ion and a trivalent titanium ion.

First claim

Opening claim text (preview).

1 . A redox flow battery that is charged and discharged by supply of a positive electrode electrolyte and a negative electrode electrolyte to a battery cell including a positive electrode, a negative electrode, and a diaphragm interposed between the positive electrode and the negative electrode, wherein: the positive electrode electrolyte and the negative electrode electrolyte are molten salts, the positive electrode electrolyte contains a trivalent titanium ion and a tetravalent titanium ion, and the negative electrode electrolyte contains a divalent titanium ion and a trivalent titanium ion. 2 . The redox flow battery according to claim 1 , wherein each of the molten salts is a molten salt of lithium chloride and potassium chloride, a molten salt of sodium chloride and potassium chloride, a molten salt of magnesium chloride, sodium chloride, and potassium chloride, or a molten salt of lithium fluoride, sodium fluoride, and potassium fluoride.

Assignees

Inventors

Classifications

  • Chlorides · CPC title

  • characterised by the electrolyte material · CPC title

  • Fuel cells · CPC title

  • H01M8/188Primary

    by recharging of redox couples containing fluids; Redox flow type batteries · CPC title

  • working at high temperature · CPC title

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What does patent US2025210681A1 cover?
A redox flow battery that is charged and discharged by supply of a positive electrode electrolyte and a negative electrode electrolyte to a battery cell including a positive electrode, a negative electrode, and a diaphragm interposed between the positive electrode and the negative electrode, wherein the positive electrode electrolyte and the negative electrode electrolyte are molten salts, the …
Who is the assignee on this patent?
Univ Tohoku
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 Jun 26 2025 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).