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Lithium-Ion Battery: Powering the Modern World
Lithium-Ion Battery: Powering the Modern World
A lithium-ion (Li-ion) battery is a type of rechargeable battery that uses lithium ions to store and release energy. Known for its high energy density, lightweight design, and long cycle life, lithium-ion technology has become the dominant power source for a wide range of devices—from smartphones and laptops to electric vehicles (EVs), energy storage systems, and even aerospace applications.
Key Components of a Lithium-Ion Battery:
Cathode (Positive Electrode): Typically made from lithium metal oxides (e.g., lithium cobalt oxide, lithium iron phosphate).
Anode (Negative Electrode): Usually made from graphite, which stores lithium ions during charging.
Electrolyte: A liquid or gel that allows lithium ions to move between the cathode and anode.