Ultrathin spinel LiMn2O4 nanowires as high power cathode materials for Li-ion batteries

Hyun-Wook Lee; P Muralidharan; Riccardo Ruffo; Claudio M Mari; Yi Cui; Do Kyung Kim

doi:10.1021/nl101047f

Ultrathin spinel LiMn2O4 nanowires as high power cathode materials for Li-ion batteries

Nano Lett. 2010 Oct 13;10(10):3852-6. doi: 10.1021/nl101047f.

Authors

Hyun-Wook Lee¹, P Muralidharan, Riccardo Ruffo, Claudio M Mari, Yi Cui, Do Kyung Kim

Affiliation

¹ Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.

PMID: 20795626
DOI: 10.1021/nl101047f

Abstract

Ultrathin LiMn(2)O(4) nanowires with cubic spinel structure were synthesized by using a solvothermal reaction to produce α-MnO(2) nanowire followed by solid-state lithiation. LiMn(2)O(4) nanowires have diameters less than 10 nm and lengths of several micrometers. Galvanostatic battery testing showed that LiMn(2)O(4) nanowires deliver 100 and 78 mAh/g at very high rate (60C and 150C, respectively) in a larger potential window with very good capacity retention and outstanding structural stability. Such performances are due to both the favorable morphology and the high crystallinity of nanowires.

Publication types

Research Support, Non-U.S. Gov't