Influence of pyrolyzing temperature and time on lithium storage properties of the synthesized SiOx@C nanocomposites

Volume 1, Issue 1, October 2016     |     PP. 1-19      |     PDF (1189 K)    |     Pub. Date: October 16, 2016
DOI:    458 Downloads     8093 Views  

Author(s)

Xiaofang Feng, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, Nanchong 637009, China
Mingqi Li, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637009, China

Abstract
Polysiloxane@phenolic resin (Polysiloxane@RF) precursor is firstly synthesized by sol-gel method using resorcinol, formaldehyde and triethoxyethylsilanes as starting materials, and then pyrolyzed at a desired temperature for desired time. The as-prepared SiOx@C samples are characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Raman spectroscopy, elemental analysis (EA), scanning electron microscope (SEM) and high resolution transmission electron microscopy (HRTEM), respectively. The synthesized SiOx@C composites consist of nanorods and nanospheres. The electrochemical measurement shows that the composition, microstructure and lithium storage properties of the synthesized SiOx@C nanocomposites are closely related with pyrolyzing temperature. Among them, the SiOx@C nanocomposite synthesized at 1000 oC for 3 h delivers the best comprehensive electrochemical performance.

Keywords
SiOx@C nanocomposite; lithium-ion batteries; anode; pyrolyzing temperature; electrochemical performance

Cite this paper
Xiaofang Feng, Mingqi Li, Influence of pyrolyzing temperature and time on lithium storage properties of the synthesized SiOx@C nanocomposites , SCIREA Journal of Energy. Volume 1, Issue 1, October 2016 | PP. 1-19.

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