Sacrificial Template Strategy toward a Hollow LiNiCoMnO Nanosphere Cathode for Advanced Lithium-Ion Batteries.

In this work, a hollow LiNiCoMnO (H-NCM) nanosphere cathode with excellent electrochemical performance is developed for lithium-ion batteries. Preparation of the H-NCM nanospheres involves the sacrificial template method, in which carbon nanospheres work as the template and polyvinylpyrrolidone works as an additive. Structural and morphological analyses show that the as-prepared H-NCM nanospheres are highly uniform with diameters of approximately 50 nm and wall thicknesses of 10 nm.