Electrolyte for redox flow battery and redox flow battery system
By using auxiliary complexing agents like polycarboxylic acids and aminocarboxylic acids in redox flow battery electrolytes, metal precipitation is reduced, enhancing battery efficiency and longevity.
JP2025119697APending Publication Date: 2025-08-15SUMITOMO ELECTRIC INDUSTRIES LTD
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Patent Information
- Application Number
- JP2024014630
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-08-15
AI Technical Summary
Technical Problem
Precipitation of metals in redox flow batteries using metal complexes as active materials affects efficiency and life, primarily due to high pH conditions leading to metal hydroxide formation, which is insoluble and non-functional.
Method used
Incorporation of an auxiliary complexing agent, such as polycarboxylic acids, polyols, or aminocarboxylic acids, into the electrolyte to reduce metal precipitation by forming stable complexes with released metal ions.
Benefits of technology
The solution effectively minimizes metal deposition, maintaining battery capacity and performance by stabilizing the organometallic complexes under varying pH conditions.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide an electrolyte for a redox flow battery that can reduce deposition of a metal forming an organometallic complex.SOLUTION: There is provided the electrolyte for a redox flow battery, including: an organometallic complex; and an auxiliary complexing agent including at least one type selected from the group consisting of a polycarboxylic acid, a polyol, and an aminocarboxylic acid.SELECTED DRAWING: Figure 1
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