Sumitomo Electric Launches Vanadium Redox Flow Battery with 30-Year Lifespan
Japanese manufacturer Sumitomo Electric has unveiled a new vanadium redox flow battery (VRFB) designed for various long-duration configurations. This product was introduced at the Energy Storage North America (ESNA) event, which took place in San Diego from February 25 to 27, 2025. The battery system incorporates “newly developed long life materials” that enable an impressive operational lifespan of 30 years, provided it is properly maintained. This long lifespan significantly enhances the system’s long-term cost-effectiveness, according to the manufacturer.
One of the primary advantages of VRFBs is their extended operational lifespan, along with high recyclability and robust safety features. In VRFBs, energy capacity, which is determined by the liquid electrolyte, and power output, governed by the cells, are decoupled. This design allows for independent scaling of both components, which also minimizes wear and tear, contributing to a longer operational life.
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