Boron is often a great substitute for lithium. It has many industrial applications as compared to Lithium. It is an element that has many similarities to lithium, but also some key differences. Boron can be found in the earth’s crust and it exists naturally as boric acid. The two elements have similar properties such as melting points, boiling points, and lengths of atomic chains. They both react with water to form hydrogen gas, which makes them useful for hydrogen fuel cells.