Lithium borohydride is like a magic powder that can store energy like a battery. It is made up of tiny particles called molecules that have lots of energy locked up inside them.
When you need to use this energy, you mix the powder with water and it releases something called hydrogen gas. Just like when you blow up balloons, the gas makes things move and do work.
But the special thing about this magic powder is that it can be used over and over again. This means that you don't have to throw it away or make new powder each time you need energy. It is like having a reusable battery that never runs out as long as you keep adding water.
Scientists and engineers are very excited about lithium borohydride because it can be used in lots of different things like cars, planes, and even homes. This means that we can use clean energy that doesn't hurt planet Earth and make it a better place for everyone.