Safer, cheaper lithium batteries on the way?

Researchers at Aalto University in Finland have developed a cheaper and more environmentally friendly method for producing lithium batteries.

The new process succeeds in replacing the harmful methylpyrrolidone solvent, which is traditionally used in the manufacturing of electrodes, with water. Removing this harmful solvent from the production process is said to make the production of batteries simpler and safer for employees. The researchers claim production costs of batteries can be decreased by as much as 5%. "Improving production methods is important as the use of batteries is rapidly increasing around the world," said Professor Tanja Kallio. "The increase in electric car use in particular will strongly increase the global demand and production of batteries."