Researchers at the RIKEN Cluster for Pioneering Research in Japan have developed a solid electrolyte for transporting hydride ions (H−) at room temperature. This breakthrough means that the advantages of hydrogen-based solid-state batteries and fuel cells are within practical reach, without the need for constant hydration. This should reduce fuel cell cost and complexity. https://www.alphagalileo.org/en-gb/Item-Display/ItemId/241030