LiCoO2

Lithium cobalt oxide (LiCoO2) is a ceramic compound and the most widely deployed cathode material in lithium-ion battery technology, where lithium ions reversibly intercalate into its layered crystal structure during charge-discharge cycles. It is the industry standard for portable electronics—smartphones, laptops, and tablets—because it offers high volumetric energy density and reliable cycle life, though it has largely been supplemented in new automotive applications by safer alternatives like NCA and NMC chemistries due to thermal stability and cost concerns. Engineers select LiCoO2 when high energy density in a compact form factor is critical and thermal management or cost constraints are secondary.