LiMn2O4 nanotube as cathode material of second-level charge capability for aqueous rechargeable batteries.

Tang, Wei; Hou, Yuyang; Wang, Faxing; Liu, Lili; Wu, Yuping; Zhu, Kai · Nano Lett · 2013

basic_science · Level V

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Abstract

LiMn2O4 nanotube with a preferred orientation of (400) planes is prepared by using multiwall carbon nanotubes as a sacrificial template. Because of the nanostructure and preferred orientation, it shows a superfast second-level charge capability as a cathode for aqueous rechargeable lithium battery. At the charging rate of 600C (6 s), 53.9% capacity could be obtained. Its reversible capacity can be 110 mAh/g, and it also presents excellent cycling behavior due to the porous tube structure to buffer the strain and stress from Jahn-Teller effects.