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Biomorphic template-engaged strategy towards porous zinc manganate micro-belts as a competitive anode for rechargeable lithium-ion batteries.
- Source :
-
International Journal of Hydrogen Energy . May2017, Vol. 42 Issue 20, p14154-14165. 12p. - Publication Year :
- 2017
-
Abstract
- A sustainable yet massive synthesis of porous micro-/nano-structured spinel mixed metal oxides is highly desirable as advanced anodes for their extensive applications in rechargeable lithium-ion batteries (LIBs). In this contribution, a self-sacrifice biomorphic template-engaged strategy was purposefully devised for efficient and scalable fabrication of hierarchical porous ZnMn 2 O 4 micro-belts (ZMO-MB). The synthetic procedure mainly involves impregnating natural cotton fibers with Mn 2+ /Zn 2+ ions, followed by sacrificing template over calcination in air. The underlying formation process of the ZMO-MB was rationally put forward with comparative analysis. Physicochemical investigations showed that the well-defined ZMO-MB with hierarchical meso-/macro-porosity was composed of assembled nanoparticle subunits. Taking advantages of intrinsic structural and functional merits, the resultant ZMO-MB with a mass loading of ∼1.2 mg exhibits appealing Li-storage properties with large reversible capacity (∼436 mAh g −1 at 2000 mA g −1 ), high initial Coulombic efficiency (∼71.2%) and appealing long-duration cyclability at high rates (∼731 mAh g −1 after 150 cycles at 500 mA g −1 ) when evaluated as a promising anode platform for high-performance LIBs. More encouragingly, we strongly envision that the smart electrode design concept here can be easily for large-scale production and engineering of promising ZMO for next-generation LIBs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03603199
- Volume :
- 42
- Issue :
- 20
- Database :
- Academic Search Index
- Journal :
- International Journal of Hydrogen Energy
- Publication Type :
- Academic Journal
- Accession number :
- 123258666
- Full Text :
- https://doi.org/10.1016/j.ijhydene.2017.04.197