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Redox flow battery Product List

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VRFB (Vanadium Redox Flow Battery)

VRFB (Vanadium Redox Flow Battery)

The rated output of 5Kw (SD-0041-03) and 10Kw (SD-0041-04) is available.

The "VRFB (Vanadium Redox Flow Battery)" is a product that allows for unlimited charge and discharge cycles by utilizing the chemical changes (oxidation/reduction) of the electrolyte. Since the electrolyte can be used semi-permanently, the lifespan of the battery itself is long, making it possible to reduce costs during long-term operation. For more details, please contact our experienced staff. 【VRFB SD-0041-03 (5Kw) Overview】 ■Rated Voltage: 48Vdc ■Rated Current: 105A ■Rated Power: 5Kw ■Charging Voltage: 40-60V (Recommended 58.5V) ■Stack Size: 755w×650d×350h (mm), etc. *For more details, please download the PDF or feel free to contact us.

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  • Redox flow battery

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Tohoku Univ. Technology：Titanium ion redox flow battery：T21-163

Tohoku Univ. Technology：Titanium ion redox flow battery：T21-163

Redox flow battery with low cost, high electromotive force and current density

　The amount of electricity generated by renewable energy varies a lot on climate, etc. Therefore, it is preferable to use it in combination with storage battery in order to supply stable electric power. Redox flow battery (RFB), which charges and discharges by ion redox reaction, is highly valued for its safety due to its nonflammability, its high durability as the electrolyte & electrode hardly deteriorate, and its low running cost. Vanadium RFB is in practical use but in recent years, the resource price of vanadium active material has jumped, resulting in high initial cost.　 This invention uses only titanium as active material for both cathode / anode chambers, which significantly reduces the initial cost. There is existing RFB technology that combines titanium and manganese, but using different elements in the cathode / anode chambers risks contamination due to its principle, so a premature battery degradation could be expected. This invention has an advantage in this field and it is also expected to realize more efficient RFB because of its higher electromotive force and current density that can be extracted compared to conventional vanadium ion RFB.

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