Iron oxide – rust.
Iron-air batteries have a “reversible rust” cycle that could store and discharge energy ten times more efficiently than cobalt or sodium batteries – at one-tenth the cost. Unlike current lithium-ion batteries which require expensive and toxic materials such as lithium, cobalt, nickel and graphite, the iron-air batteries use iron, the fifth most abundant metal on earth. Not only is iron cheaper it’s also more environmentally friendly.
Battery storage plays a critical role in supporting renewable energy as a viable and sustainable source of power.
Matter of Facts are small insights into inspiring sustainable solutions.
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