Lithium-ion batteries are widely used for portable devices and electric vehicles because of their high energy density and long cycle life. One of the key components of lithium-ion batteries is the cathode material, which determines the capacity and voltage of the battery. Cathode materials are usually oxides of lithium and one or more transition metals, such as cobalt, nickel, manganese, iron, or aluminum. Different cathode materials have different advantages and disadvantages in terms of cost, performance, safety, and environmental impact.
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