SMRTR Science & EngineeringJun 10, 2026Interesting Engineering

New water-based capacitor survives 60,000 charging cycles without degrading

SMRTR summary

Researchers at Hamburg University of Technology built a "Blue Capacitor" using only water, clay, and carbon. By trapping pure water in one-nanometer-wide channels, it conducts electricity without chemicals, survived 60,000 charging cycles, and reached 1.6 volts — potentially transforming renewable energy storage and grid stabilization.

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