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Yana Li,Xianhua Hou,Yajie Li,Qiang Ru,Shaofeng Wang,Shejun Hu,Kwok-ho Lam 대한금속·재료학회 2017 ELECTRONIC MATERIALS LETTERS Vol.13 No.5
Hierarchical CoMn2O4 microspheres assembled bynanoparticles have been successfully synthesized by afacile hydrothermal method and a subsequent annealingtreatment. XRD detection indicate the crystal structure. SEM and TEM results reveal the 3-dimensional porousand micro-/nanostructural microsphere assembled bynanoparticles with a size of 20-100 nm. The CoMn2O4electrode show initial specific discharge capacity ofapproximately 1546 mAh/g at the current rates 100 mA/gwith a coulombic efficiency of 66.7% and remarkablespecific capacities (1029-485 mAh/g) at various currentrates (100-2800 mA/g).