New water-powered tech could power batteries that can last hundreds of years without degrading — and are so safe that the electrolytes can be used as 'tofu-brine' for home cooking
SMRTR summary
Chinese scientists created a water-based battery that can survive 120,000 charging cycles — equivalent to roughly 300 years of grid storage use. A neutral pH electrolyte prevents corrosion that typically destroys such batteries, and the non-toxic electrolyte is safe enough to use as tofu brine. Commercial viability remains uncertain.
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