Biomorphic Batteries for Robots Have 72x More Energy

Robotic Gizmos

Researchers are always looking for ways to improve battery efficiency in robots. The University of Michigan engineers have now come up with a rechargeable zinc battery that integrates into the structure of robots to provide more energy. Here is how it works:
The new battery works by passing hydroxide ions between a zinc electrode and the air side through an electrolyte membrane. That membrane is partly a network of aramid nanofibers—the carbon-based fibers found in Kevlar vests—and a new water-based polymer gel. The gel helps shuttle the hydroxide ions between the electrodes.

The battery is made of non-toxic materials. To test it, researchers experimented with worm and scorpion shaped robots.
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