A big challenge for the EV and renewable energy revolution is that the much-needed batteries are made from
lithium, a relatively rare and pricey metal. Rather than focusing on other metals like
magnesium, a team of scientists from RMIT University in Melbourne have figured it out to build rechargeable "
proton" batteries from abundant carbon and water. If commercialized, the technology could allow for cheaper Powerwall-type home or grid storage to back up solar panels or windmills.
