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a short video showing aluminum repelling oil underwater
The new design slows corrosion in aluminum-air batteries by introducing an oil barrier between the aluminum electrode and the electrolyte — the fluid between the two electrodes that eats away at the aluminum when the battery is on standby.

Spotlight: Nov 13, 2018

Light and compact, metal-air batteries could be ideal for drones and off-grid energy storage. But when not in use, their electrodes quickly corrode. Mechanical engineers have now found a way to slow this corrosion and boost durability. Full story

Nov 13, 2018