Could 'rust' hold key to electric travel?

Scottish scientists have developed a liquid battery which could charge electric cars in seconds. A team at the University of Glasgow has created a prototype system that could revolutionise travel. The technology uses a metal oxide - described by researchers as an "exotic rust" - that can be charged with electricity when added to water.
Read more: https://www.bbc.co.uk/news/uk-scotland-45179722?ns_mchannel=social?source=Snapzu