Excellent electrochemical performance of porous nanoparticles-constructed granule LiMn2O4 derived from a highly reactive Mn3O4

Comprehensive Enhancement of Nanostructured Lithium-Ion Battery Cathode Materials via Conformal Graphene Dispersion

“…Given the mass density of LMO spinel (4.281 g cm –3 ), the active material packing density in n-LG is 2.1 g cm –3 , resulting in a volumetric energy density of 1030 Wh L –1 at 0.2C current rate, which is 30% higher than previous work (785 Wh L –1 ), where primary LMO nanoparticles were used as the active material. Furthermore, while there have been several reports employing graphene − or carbon − coatings to improve the performance of nanostructured LMO cathodes, the volumetric energy densities of those cathodes at 0.2C current rate were either not provided or inferior to the value reported here.…”

Synthesis of a Co–Ni doped LiMn2O4 spinel cathode material for high-power Li-ion batteries by a sol–gel mediated solid-state route

“…A highly dispersed Mn 3 O 4 powder was used as the Mn source, which possessed a particle size of ~150 nm and a specific surface area of 14.3 m 2 g 1 . It was synthesized by a precipitation-oxidation method, which was described in detail in our previous work [21]. All the other reagents were of analytical grade, provided by Sinopharm Chemical Reagent Co. Ltd., and used as received.…”