Potassium-ion batteries may offer higher energy density than sodium-ion batteries, but their development faces challenges.

Potassium-ion batteries may offer higher energy density than sodium-ion batteries, making them a viable alternative for large-scale energy storage. Researchers at Dongguk University have surveyed the battery technologies needed for a sustainable green transition and highlighted the need for advanced anode materials tailored to potassium ions. The team plans to develop cost-effective, high-performance, and safe anode materials for potassium-ion batteries to advance their potential.