Energy storage can be simply understood as the devices used for storing energy. These devices have the energy that is converted in usable forms. The energy is of many types like potential energy, kinetic energy, chemical energy, electrical energy, etc. These forms of energy are used in batteries, machines, labs and many others.
There are several ways one can store the valuable source of energy and energy itself. Hydrogen is one of the things that carry energy. This is in the chemical field. Hydrogen can be used for internal and external combustions. Hydrogen is used in machines to move the things. For electricity, hydrogen is used for moving turbines. Also every one knows the power of hydrogen used as the bomb. Bio-fuels are also used for their energy capabilities. These are used in vehicles, automobiles of all types. This is one of the renewable sources of energy as they are composed of bio and natural elements that can be used again and again. Electrochemical energy is one of the main ways used in energy storages. In the ways of electrochemical, chemical energy is converted into electric energy. This can be seen in batteries, cells.