(293h) Li(Ni,Co,Mn)O2 Nanoparticles for Oxygen Electrocatalyst

The global energy crisis coupled with the consumption of fossil fuels and the associated environmental issues has stimulated extensive interest in searching for clean, efficient, and sustainable energy storage and conversion systems. Oxygen electrocatalysis, including both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), dominates the performance of the energy conversion devices. The development of non-precious metal-based oxygen electrocatalysts is greatly demanded. Metal oxides have attracted extensive interest as alternative electrocatalysts due to their flexible compositions and structures, leading to easy manipulation of their electrocatalytic properties. Li(Ni,Co,Mn)O₂ (NCM) has been the most used cathode for lithium-ion batteries from its considerable capacity and energy density. We will introduce a novel chemical solution approach for epitaxial thin film deposition and oxide nanoparticle network synthesis, using NCM as an example, to obtain nanoparticles with controlled lithium deficiency, different compositions, and crystal structures for OER electrocatalyst application.