One potential benefit of this system is that electric cars could be charged in seconds, as the material is a…

One potential benefit of this system is that electric cars could be charged in seconds, as the material is a pumpable liquid. This could mean that the battery of an electric car could be “recharged” in roughly the same length of time as petrol cars can be filled up. The old battery liquid would be removed at the same time and recharged ready to be used again.

https://www.gla.ac.uk/news/headline_601603_en.html