Superior electrochemical properties of LiMn2O4 yolk–shell powders prepared by a simple spray pyrolysis process

Abstract

LiMn₂O₄ yolk–shell powders with a distinctive filled-core@void@shell configuration are prepared by a spray pyrolysis process. The yolk–shell powders have discharge capacities of 127, 120, and 115 mA h g⁻¹ after 200 cycles, even at high current densities of 3 C (360 mA g⁻¹), 5 C, and 10 C, respectively.