The object
Donald Sadoway invented the liquid-metal battery, a high-temperature rechargeable cell with liquid metal electrodes separated by molten salt. The architecture targets low-cost, long-life stationary storage, offering a physical way to buffer renewable generation without relying on scarce battery materials.
01
What Donald did
Invented the liquid-metal battery, using liquid electrode layers and molten-salt electrolyte for stationary storage.
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Why it matters
MIT identifies Sadoway’s liquid-metal battery as an invention recognized by Time and describes its application to grid-level storage.
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Living-status check
MIT’s Energy Initiative recorded Sadoway discussing electric-vehicle and grid-storage hardware in a July 2025 article and lists him as professor emeritus.