Single-crystalline LiMn 2 O 4 nanoparticles by the gel-combustion method assisted by microwave for high-performance lithium ion battery

Abstract

Abstract Low-cost and efficient electrode materials play a key role in improving the performance of Lithium Ion Battery. In this paper, the single-crystalline LiMn2O4 nanoparticles were synthesized through the gel-combustion method assisted by microwave followed by calcination treatment. High-quality single-crystallinity characteristics of the LiMn2O4 precursors powder could be well retained after a high-temperature (990℃) solid-state reaction. When valued as the working electrode materials for Lithium Ion Battery, they presented the exceptional electrochemical performances including the high specific 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 LiMn2O4 nanoparticles was perceived as the hopeful electrode materials for high-power Lithium Ion Battery.