Battery startup Ambri, chief technology officer David Bradwell is developing what he hopes will be a building block for a new type of electricity grid. The chemistry in Ambri’s technology is different from any other currently used in batteries. When the cell is heated to around 500 °C, the disks and powder inside—the battery’s electrodes and electrolyte, respectively—will melt.
Conventional rechargeable batteries have solid electrodes that degrade with use, but a battery with only liquid parts could last for years without losing much of its energy storage capacity.
If Ambri or anyone else can make grid storage cheap and dependable, it will change the way we get electricity. Ambri is betting that by using cheap materials and a simple battery design with no moving parts, it can deliver reliable bulk energy storage for well below $500 per kilowatt-hour.
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