Journal of Power Sources Advances, a companion title to the highly-regarded Journal of Power Sources, is a gold open access journal that offers fast track review and publication to researchers and technologists working on the science, technology and applications of advanced sources of electrochemical power. Journal of Power Sources Advances focusses on lithium, sodium, and other battery technologies, supercapacitors, polymer electrolyte membrane fuel cells, biofuel cells, high temperature fuel cells, photo-electrochemical cells, and other high-end electrochemical devices. The scope also includes the research, development and applications of nanomaterials and novel componentry for such devices. This journal welcomes contributions that support and advance the UN's sustainable development goals, in particular SDG 7 (Affordable and clean energy)