Silicate Nanocrystals: PEDOT Encapsulated and Mechanochemically Engineered Silicate Nanocrystals for High Energy Density Cathodes (Adv. Mater. Interfaces 13/2020)

In article number 2000226 Majid Rasool, George P. Demopoulos, and co-workers report the fabrication of a robust core-shell lithium iron silicate (Li2FeSiO4, LFS) cathode architecture, where nanocrystal's core is prepared via mechanochemical annealing and shell via PEDOT polymerization. As a result of the devised mechanochemical/interphasial engineering of the [email protected] nanocrystals, their Li-ion storage capacity is augmented to >1 Li, namely 200 mAh g−1 after 50 cycles or 1.2 Li+ units-the highest capacity reported for the Pmn21 LFS cathode.