Learn what sodium-ion batteries are, how they compare to lithium-ion, and whether they could become the future of energy ...

A small piece of sodium metal is placed in a flask of chlorine gas. A little water helps expose the sodium so it can react with the chlorine gas. The reaction releases a lot of heat as the ionic ...

Graphene comprises two-dimensional sheets of carbon atoms, bonded into a thin hexagonal shape with a thickness of one atom layer ... to the test in a sodium-ion battery (SIB).