Facile synthesis of porous LiMn2O4 micro-/nano-hollow spheres with extremely excellent cycle stability as cathode of lithium-ion batteries

In present work, the porous LiMn 2 O 4 micro-/nano-hollow spheres are directly prepared from the globe precursor MnCO 3 obtained via a facile precipitation route without any intermediate and ethanol. X-ray diffraction and scanning electron microscopy results indicate that the as-synthesized porous L...

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Veröffentlicht in:Journal of solid state electrochemistry 2018-08, Vol.22 (8), p.2617-2622
Hauptverfasser: Liu, Haowen, Zhou, Yining, Song, Wenchuan
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container_title Journal of solid state electrochemistry
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creator Liu, Haowen
Zhou, Yining
Song, Wenchuan
description In present work, the porous LiMn 2 O 4 micro-/nano-hollow spheres are directly prepared from the globe precursor MnCO 3 obtained via a facile precipitation route without any intermediate and ethanol. X-ray diffraction and scanning electron microscopy results indicate that the as-synthesized porous LiMn 2 O 4 micro-/nano-hollow spheres are composed of nanometer-sized primary particles. Charge–discharge tests, cyclic voltammetry, and electrochemical impedance spectra show that the obtained LiMn 2 O 4 delivered higher reversible capacity, extremely excellent cycle stability, superior kinetic properties, and rate capacities. Specially, there are nearly no any capacity loss after 200 cycles, and the coulombic efficient is nearly close to 100%, which are attributed the unique porous micro-/nano-hollow structure and a better crystallinity.
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subjects Analytical Chemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
Ethanol
Lithium
Lithium manganese oxides
Lithium-ion batteries
Physical Chemistry
Rechargeable batteries
Scanning electron microscopy
Short Communication
Stability
X-ray diffraction
title Facile synthesis of porous LiMn2O4 micro-/nano-hollow spheres with extremely excellent cycle stability as cathode of lithium-ion batteries
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