Rust
When you think about the race for the next battery technology breakthrough, I bet you’re not thinking about rust. But Form Energy, founded by a former Tesla employee, is betting on its iron-air battery, which converts iron to rust, then rust back into iron, discharging and charging the battery in the process. What’s remarkable is how long the batteries can store electricity (around 100 hours), and the costs they expect to achieve when mass production begins in 2025, around $6 per kilowatt-hour of storage, compared to $50 to $80 per kWh for nickel, cobalt, lithium or manganese based batteries.
— Wayne Visser
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From Purpose Inspired: Reflections on Conscious Living, Volume 5. Buy on Lulu ↗