iron-air

Form Energy's scalable battery storage tech involves rusting and then de-rusting iron as it discharges and charges. Image: Form Energy.

Long-duration storage mystery revealed: Form Energy discloses details of ‘multi-day battery’ tech

July 23, 2021
Startup Form Energy has finally made public the battery chemistry behind a technology that the company claims could make challenges of integrating renewable energy a thing of the past and outcompete fossil fuels.

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