Single-crystalline LiMn2O4 nanoparticles by the gel combustion method assisted by microwave for high-performance lithium-ion battery

Abstract

Low-cost and e cient electrode materials play a key role in improving the performance of Lithium Ion Battery. In this paper, the single-crystalline LiMn 2 O 4 nanoparticles were synthesized through the gelcombustion method assisted by microwave followed by calcination treatment. High-quality singlecrystallinity characteristics of the LiMn 2 O 4 precursors powder could be well retained after a hightemperature (990℃) solid-state reaction. When valued as the working electrode materials for Lithium Ion Battery, they presented the exceptional electrochemical performances including the high speci c capacity for initial discharge of 120.53mAh/g, the good rate capability with the retention of 65.52% at 5C of the capacity at 0.2C, and better cyclic performance with a capacity retention ratio of 90.01% after 300 cycles.The outstanding electrochemical performance of our prepared single-crystalline LiMn 2 O 4 nanoparticles was perceived as the hopeful electrode materials for high-power Lithium Ion Battery.