Researchers from Chalmers University of Technology in Sweden have shown that the sodium-ion battery has an equivalent climate impact as their lithium-ion competitors – without the risk of running out of raw materials. The transition to a society without fossil fuels means that the need for batteries is increasing at a rapid pace. At the same time, the increase will mean a shortage of the metals lithium and cobalt, which are key components in the most common battery types. One option is a sodium-ion battery, where table salt and biomass from…