Lithium-ion batteries power most electronics, but they have limited energy density—they can store only a certain amount of energy per mass or volume of the battery.

“In order to store even more energy with the same mass or volume, you will have to explore alternative energy storage technologies,” says Sai Gautam Gopalakrishnan, Assistant Professor at the Department of Materials Engineering, IISc.

Gopalakrishnan and his team have studied how to boost the movement of ions in magnesium batteries, which can have a higher energy density.