LiMn2O4 nanorods as a super-fast cathode material for aqueous rechargeable lithium batteries |
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| Authors: | W. Tang L.L. Liu S. Tian L. Li L.L. Li Y.B. Yue Y. Bai Y.P. Wu K. Zhu R. Holze |
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| Affiliation: | aNew Energy and Materials Laboratory (NEML), Department of Chemistry & Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University Shanghai, 200433, China;bShanghai Institute of Space Power-Sources (SISP), Shanghai Academy of Spaceflight Technology, Shanghai, 200233, China;cTechnische Universität Chemnitz, Institut für Chemie, AG Elektrochemie, D-09107 Chemnitz, Germany |
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| Abstract: | LiMn2O4 nanorods were prepared by a facile hydrothermal method in combination with traditional solid-state reactions and characterized by X-ray diffraction analysis. Their electrochemical behavior was tested by cyclic voltammetry and repeated charge/discharge cycling. Results show that the reversible intercalation/deintercalation of Li-ions into/from LiMn2O4 cathode can yield up to 110 mAh/g at 4.5 C, and still retains 88% at the very large charge rate of 90 C with well-defined charge and discharge plateaus. It presents very high power density, up to 14.5 kW/kg, and very excellent cycling behavior, 94% capacity retention after 1200 cycles. It is thus a competitor for LiFePO4. |
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| Keywords: | Aqueous rechargeable lithium battery (ARLB) Nanorods Cathode material LiMn2O4 Rate capability |
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