Abstract
Hierarchical CoMn2O4microspheres assembled by nanoparticles have been successfully synthesized by a facile hydrothermal method and a subsequent annealing treatment. XRD detection indicate the crystal structure. SEM and TEM results reveal the 3-dimensional porous and micro-/nanostructural microsphere assembled by nanoparticles with a size of 20-100 nm. The CoMn2O4electrode show initial specific discharge capacity of approximately 1546 mAh/g at the current rates 100 mA/g with a coulombic efficiency of 66.7% and remarkable specific capacities (1029-485 mAh/g) at various current rates (100-2800 mA/g).[Figure not available: see fulltext.].
Original language | English |
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Pages (from-to) | 427-433 |
Number of pages | 7 |
Journal | Electronic Materials Letters |
Volume | 13 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 Sept 2017 |
Keywords
- CoMn O microspheres 2 4
- crystal structure
- hydrothermal method
- lithium ion batteries
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials