WO2025198534 - SYSTEM AND METHOD FOR REINSTATING THE VALANCE OF ELECTROLYTE IN VANADIUM REDOX FLOW BATTERIES
National phase entry is expected:
Publication Number
WO/2025/198534
Publication Date
25.09.2025
International Application No.
PCT/SG2025/050198
International Filing Date
18.03.2025
Title **
[English]
SYSTEM AND METHOD FOR REINSTATING THE VALANCE OF ELECTROLYTE IN VANADIUM REDOX FLOW BATTERIES
[French]
SYSTÈME ET PROCÉDÉ DE RÉTABLISSEMENT DE LA VALENCE D'UN ÉLECTROLYTE DANS DES BATTERIES À FLUX REDOX DE VANADIUM
Applicants **
VFLOWTECH PTE LTD.
Inventors
BHATTARAI, Arjun
GHIMIRE, Purna Chandra
TAN, Ee Jet
YONG, Wei jie
Priority Data
10202400814V
21.03.2024
SG
Application details
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International Searching Authority |
IPOS
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2043 | |
| EPO | Filing, Examination, Granting | 11558 | |
| Japan | Filing, Examination, Granting | 2091 | |
| South Korea | Filing, Examination, Granting | 2004 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
22,436
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Abstract[English]
System and method for reinstating valance of electrolyte in vanadium redox flow batteries are provided Fructose is a viable reducing agent to reduce VO2 + to rebalance a vanadium redox flow battery system regardless of its size. Examples and techniques are provided that show that fructose reacts with VO2 + irreversibly and that given enough time, the reaction will go to completion. Thus, this will allow the imbalanced system to be balance precisely to the desired valance of vanadium electrolyte of V+3.5[French]
L'invention concerne un système et un procédé permettant de rétablir la valence de l'électrolyte dans des batteries à flux redox de vanadium. Le fructose est un agent réducteur viable permettant de réduire le VO2 + pour rééquilibrer un système de batterie à flux redox de vanadium indépendamment de sa taille. L'invention concerne en outre des exemples et des techniques qui révèlent que le fructose réagit avec du VO2 + de manière irréversible et que si la réaction dispose de suffisamment de temps, elle se poursuivra jusqu'à se terminer. Ainsi, le système déséquilibré pourra être équilibré de manière précise selon la valence souhaitée de l'électrolyte de vanadium de V+3,5.