We report the outstanding electrochemical performance of LiNi0.5Mn1.5O4 porous microellipsoids with a core shell configuration synthesized by a simple self-template method. The structure and electrochemical properties of the products are investigated via X-ray diffraction, scanning electron microscopy, Brunauer-Emmett-Teller method and various electrochemical analysis techniques. LiNi0.5Mn1.5O4 porous microellipsoids have a discharge capacity of 110.3 mA h g(-1) after 400 cycles at a rate of 5C (735 mA g(-1)). The capacity retention ratio is 93.7% of the maximum capacity (142.3 mA h g(-1)) after 150 cycles under 5C rate at elevated temperature (55 degrees C). The porous ellipsoidal product could be a promising cathode material for high-performance lithium ion batteries. (C) 2015 Elsevier B.V. All rights reserved.