A high-performance truncated octahedron structured LiNi0.5Mn1.5O4 is synthesized by a graphite assisted calcination method, in which the {111} and {100} crystal plane group are meet the requirements of high ratio and long cycling performance.
Spinel LiMn2O4 has been widely investigated as a cathode material for lithium-ion batteries, but it suffers from a limited cycle life due to the dissolution of Mn and structural distortion.