Morphology-controllable solvothermal synthesis of nanoscale LiFePO4 in a binary solventReportar como inadecuado




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Chinese Science Bulletin

, Volume 57, Issue32, pp 41704175

First Online: 31 March 2012Received: 25 October 2011Accepted: 28 December 2011DOI: 10.1007-s11434-012-5019-0

Cite this article as: Wu, M., Wang, Z., Yuan, L.
et al.
Chin.
Sci.
Bull.
2012 57: 4170.
doi:10.1007-s11434-012-5019-0

Abstract

LiFePO4 LFP nanobars, microplates and nanorods have been selectively synthesized via a solvothermal method in a water-ethylene glycol EG binary solvent with H3PO4, LiOHH2O, and FeSO47H2O as starting materials.
The morphology and size of the as-obtained LFP products can be deliberately controlled by varying the volume ratio of EG to water.
The formation mechanism and electrochemical properties of different LFP morphologies have been investigated.
With carbon coating, the Li-ion diffusion coefficients of LFP nanorods, nanobars and micro-plates are 2.5810, 2.9110, and 7.2210 cm s, respectively.
For the carbon-coated nanorods, excellent rate capability and cyclability were attained.
At 5 C, the capacity was 141 mAh g for the first cycle and maintained 120 mAh g after 100 cycles; at 10 C, the capacity was still as high as 132 mAh g.

Keywordslithium ion batterylithium iron phosphatesolvothermal synthesismorphology controlelectrochemical performanceThis article is published with open access at Springerlink.com

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Autor: MiaoWu - ZhaoHuiWang - LiXiaYuan - WuXingZhang - XianLuoHu - YunHuiHuang

Fuente: https://link.springer.com/



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