The folks (researchers) at Aalto University in Finland have developed a new process for manufacturing lithium batteries. Currently, a harmful substance called methylpyrrolidone (NMP) is used in the production of electrodes. The researchers have developed a method where they can replace the harmful solvent with water.
Considering the growing demand for batteries around the world, this is a big deal. The process of using water saves not only in an immediate reduced cost of five percent, imagine the future health costs to the employees working with, transporting and disposing the harmful chemicals.