Oxygen is delivered through a mask worn on the face or nose, through a cannula, from a supply which usually consists of either a canister of pressurized oxygen or a liquid oxygen tank. This equipment typically weighs around 4 kg, and when the user leaves the house they can use a small ...
Li-rich layered oxides, either as a solid solution or as a nano-composite of layered Li2MnO3 and Li(TM)O2 (TM=Ni, Co, Mn), are drawing attention as next-generation cathode materials for high-energy-density Li-ion batteries in electric vehicles9,10,11. Over the past 20 years, the ...