TechnologyTiny nuclear-powered battery could work for decades in space or at sea A new design for a nuclear battery that generates electricity from the radioactive decay of americium is unprecedentedly efficient ¿ìè¶ÌÊÓÆµ
PhysicsUltracold quantum battery could be charged with quantum tunnelling Atoms tunnelling through a quantum battery could charge it and also keep it from losing energy, which could give an advantage over conventional batteries ¿ìè¶ÌÊÓÆµ