STEM Marvels: Lithium-ion Batteries 

Lithium-ion batteries or Li-ion batteries are rechargeable batteries made of cells that use lithium ions. Lithium batteries are made using primary cell construction, which means that they are single-use or non-rechargeable. Lithium-ion batteries have secondary cell construction, which means that they can be used multiple times or are rechargeable. They can have a very high voltage and charge storage per unit mass and unit volume. These batteries are also more environmentally friendly because they do not contain any substance with a high environmental load.