Vanadium flow batteries can discharge fully at 100% without decaying and losing capacity, unlike lithium batteries. So 100% of the initial capacity will be available through the batteries’ lifetime. They last over 25 years without degradation and with low annual maintenance. The vanadium electrolyte can be reused, thus no mining of fresh vanadium is required. The vanadium electrolyte retains its value at end-of life. Moreover, there is far less risk that these batteries will catch fire. And some are made small enough to be used by homeowners.
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