Lithium-Ion Batteries: Powering the Modern World
Lithium-ion batteries (Li-ion batteries) have become a cornerstone of modern energy storage, powering everything from smartphones and laptops to electric vehicles (EVs) and renewable energy systems. Their widespread adoption is due to their high energy density, lightweight design, long cycle life, and relatively low maintenance requirements compared to traditional battery technologies.
What is a Lithium-Ion Battery?
A lithium-ion battery is a type of rechargeable battery that relies on the movement of lithium ions between the anode (negative electrode) and cathode (positive electrode) during charge and discharge cycles. Typically, the anode is made of graphite, while the cathode is made from lithium metal oxides. The electrolyte facilitates ion movement, and a separator prevents short circuits by keeping the electrodes apart.