Lithium is expensive, environmentally questionable in large volumes, and tends to catch on fire from time to time. It's the best solution we've currently got for EV and device battery storage, but ...

Adding small amounts of potassium salt to lithium-metal batteries could make them safer and boost their charging efficiency. Lithium-metal batteries are lighter and can store more energy compared with ...

A battery with a potassium cathode and anode could compete with lithium-ion. The potassium battery also self heals by combining gentle heat with high surface mobility. A metal battery in general, ...

Researchers demonstrate how they can overcome a persistent challenge known as dendrites to create a metal battery that performs nearly as well as a lithium-ion battery, but relies on potassium -- a ...