WO2025198535 - SPLIT SERPENTINE FLOW FIELD PLATE, SYSTEM AND METHOD

National phase entry is expected:
Publication Number WO/2025/198535
Publication Date 25.09.2025
International Application No. PCT/SG2025/050199
International Filing Date 18.03.2025
Title **
[English] SPLIT SERPENTINE FLOW FIELD PLATE, SYSTEM AND METHOD
[French] PLAQUE DE DISTRIBUTION EN SERPENTIN DIVISÉE, SYSTÈME ET PROCÉDÉ
Applicants **
VFLOWTECH PTE LTD.
Inventors
BHATTARAI, Arjun
GHIMIRE, Purna Chandra
GUNDLAPALLI, Ravendra
RANJAN, Ravi
Priority Data
10202400817R   21.03.2024   SG
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Quotation for National Phase entry

Country StagesTotal
China Filing, Examination, Granting2189
EPO Filing, Examination, Granting13080
Japan Filing, Examination, Granting2246
South Korea Filing, Examination, Granting2331
USA Filing, Examination, Granting5340
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Abstract[English] A split serpentine flow field plate designed to improve electrolyte distribution in flow batteries is provided The flow field plate includes an inlet port for receiving a first electrolyte, multiple inlets (first, second, third, and fourth) to distribute the electrolyte to corresponding quadrants, and a drain canal to collect reacted electrolyte from each quadrant and direct it to an outlet port. Each quadrant features a serpentine-like flow channel. The design aims to overcome limitations of traditional serpentine flow fields, such as unfavourable pressure drop and uneven electrolyte distribution, thereby enhancing the efficiency of charge-discharge cycles in flow batteries.[French] Plaque de distribution en serpentin fendue conçue pour améliorer la distribution d'électrolyte dans des batteries à flux, la plaque de distribution comprenant un orifice d'entrée pour recevoir un premier électrolyte, de multiples entrées (premier, deuxième, troisième et quatrième) pour distribuer l'électrolyte à des quadrants correspondants, et un canal d'évacuation pour collecter l'électrolyte ayant réagi à partir de chaque quadrant et le diriger vers un orifice de sortie. Chaque quadrant présente un canal de flux en forme de serpentin. La conception vise à surmonter les limitations des champs de flux en serpentin classiques, tels qu'une chute de pression défavorable et une distribution d'électrolyte irrégulière, ce qui permet d'améliorer l'efficacité de cycles de charge-décharge dans des batteries à flux.