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Anode-free sodium battery could cut cost and size from everyday devices

Researcher at Washington University in St Louis Bingyuan Ma holds up a transparent capillary cell, used to optimize the performance of an experimental sodium battery

In the ongoing search for materials for new and improved batteries, sodium as a cheap and widely abundant option ticks some important boxes, but bringing these experimental designs up to speed is far from a straightforward undertaking. A new design out of Washington University in St Louis demonstrates a promising path forward, by having a thin layer of copper fulfill the role of one of the electrodes, resulting in a battery that is significantly smaller and less expensive to produce, without compromising on performance.

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Category: Energy, Science

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