Claim: Cobalt oxide nanoparticle such as nanotubes, offer high surface-to-volume ratio, and is the anodes of lithium-ion batteries (a type of rechargeable battery.).
Evidence: Cobalt oxide nanoparticles, such as nanotubes, offer high surface-to-volume ratio and short path length for lithium cation transport, leading to high reversible capacity and good cycle life. The anodes of lithium-ion batteries are often made of oxides of cobalt, nickel, or iron, that can readily and reversibly incorporate lithium ions in their molecular structure. A lithium-ion battery or Li-ion battery is a type of rechargeable battery.