Science

Battery made from water and clay could be used on Mars

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

The new battery could be assembled from Martian materials

NASA

When pushed into the smallest of cracks, water can be used in unexpected ways. A new battery design that relies on tiny amounts of water confined within layers of clay could eventually offer sustainable power in places as extreme as Mars.

Vasily Artemov at the Swiss Federal Institute of Technology and his colleagues built the battery with components similar to those of conventional batteries, including two electrodes, one with a negative and one with a positive charge. But instead of making these electrodes out of metal, they used the…


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