LiMn2O4-based materials as anodes for lithium-ion battery

Abstract

LiMn ₂ O ₄-based materials such as LiMn ₂ O ₄ and LiMn _1.53 Ni _0.47 O _3.67 were synthesized by both conventional-hydrothermal (CH), microwave-hydrothermal (MH) methods and calcination route. Both reaction temperature and reaction time during MH routes were lower than those of CH routes. LiMn ₂ O ₄ electrode materials were assembled into lithium-ion battery anodes and their electrochemical performances were studied. The results proved that these LiMn ₂ O ₄ electrodes can be served as conversion anode materials, and show electrochemical activity during the potential range of 0.01–3.0 V versus Li ⁺/ Li . For LiMn _1.53 Ni _0.47 O _3.67 materials when used as lithium-ion battery anodes, we found that the introduction of Ni can change their electrochemical reaction and thus improve their electrochemical performances.