Cycle Life Performance of LixMn2-yFeyO4-zClz Made via in Situ Combustion Synthesis

Lithium manganese oxide spinel is an attractive material for lithium-ion battery cathodes due to its 3D network of lithium pathways within the structure. An inherent disadvantage is its limited cyclability as a result of the energy barriers for removing lithium from the octahedral sites. This work incorporates chlorine into the lattice of the high surface area material to help assist in lithium deinsertion and can be synthesized for use in less than 8 hours by using the common ceramic synthesis technique of glycine nitrate combustion. The electrochemical cell cycled between 4.75V and 3.5V at 1mA/cm2 (9mA/gactive) and achieves over 130 cycles in this work while maintaining a capacity of 82.3mAh/g, about 95% of the its greatest capacity.