Innovation of the Year 2021
The ‘Big Jim’ Iron-Air Battery by Form Energy Inc.
An inexpensive battery to meet peak demand when the wind isn’t blowing or the sun isn’t shining. This new and highly efficient battery chemistry is based on one of the most abundant metals in the Earth: iron. It discharges electrons by reacting ambient oxygen with iron, creating rust. Inbound electrical current turns the rust back into iron, releasing oxygen, and recharging the battery.
