Electrodes with hollow nanotubes improve performance of potassium-ion batteries

Researchers who are working to find alternatives to lithium-ion batteries have turned their attention to potassium-ion batteries. Potassium is an abundant resource, and the technology functions in much the same way as lithium-ion batteries, but these batteries have not been developed at a large scale because the ionic radius causes problems in energy storage and substandard electrochemical performance.