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Olivine-Carbon Nanofibrous Cathodes for Lithium Ion Batteries

Published online by Cambridge University Press:  01 February 2011

Yan L. Cheah ,
Song Y. Choy ,
Tingji Toh ,
Subodh Mhaisalkar  and
Madhavi Srinivasan
Yan L. Cheah
Affiliation:
[email protected], Nanyang Technological University, School of Materials Science and Engineering, Singapore, Singapore
Subodh Mhaisalkar
Affiliation:
[email protected], Nanyang Technological University, School of Materials Science and Engineering, Singapore, Singapore
Madhavi Srinivasan
Affiliation:
[email protected]
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Abstract

Olivine (LiFePO4)-carbon nanofibre composites were synthesized through a combination of electrospinning and solvothermal methods. Morphology, distribution and crystal structure of these composites were investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). Electrochemical properties of synthesized LiFePO4-carbon fibre composite cathodes have been studied in litium ion coin cells by means of galvanostatic cycling and cyclic voltammetry. As compared to pristine LiFePO4, there was significant improvement in the specific capacity (˜25% at 0.1C rate) of LiFePO4 - ECNF owing to the improved conductivity.

Keywords

electrochemical synthesisenergy storageintercalation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1266: Symposium CC – Solid-State Batteries , 2010 , 1266-CC05-02
Copyright
Copyright © Materials Research Society 2010

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