Chitin-Incorporated Poly(ethylene oxide)-Based Nanocomposite Electrolytes for Lithium Batteries
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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| Title |
Chitin-Incorporated Poly(ethylene oxide)-Based Nanocomposite Electrolytes for Lithium Batteries
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| Creator |
Stephen, A.M.
Premkumar, T. Anbukulandainathan, M. Angulakshmi, N. |
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| Subject |
Lithium batteries
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| Description |
Nanocomposite polymer electrolytes (NCPE), with different proportions of poly(ethylene oxide)/LiClO4/
chitin were prepared by a hot press method. Nanochitin, a biopolymer, poly(�-(1f4)-N acetyl-D-glucosamine)
was incorporated as a filler in poly(ethylene oxide) (PEO). The ionic conductivity of the composite polymer
electrolytes was enhanced by one order upon addition of nanochitin. The lithium transference number, tLi
+, was increased from 0.24 to 0.51 upon chitin addition. The membranes were subjected to scanning electron
microscopy, thermogravimetric-differential thermal analysis, differential scanning calorimetry, ionic
conductivity, and Fourier transform infrared (FTIR) spectroscopy analysis. The free volume Vf was probed
by positron annihilation lifetime spectroscopy studies at 30 °C. Li/NCPE/Li symmetric cells were assembled,
and the thickness of the solid electrolyte interface as a function of time was analyzed. This paper also describes
FTIR spectroscopic studies of the interface between lithium metal and NCPE, which suggests that the surface
chemistry of lithium electrodes in contact with NCPE is dominated by compounds with C-N-Li and C-O-Li
bonding.
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| Publisher |
American Chemical Society
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| Date |
2009
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/546/1/122-2009.pdf
Stephen, A.M. and Premkumar, T. and Anbukulandainathan, M. and Angulakshmi, N. (2009) Chitin-Incorporated Poly(ethylene oxide)-Based Nanocomposite Electrolytes for Lithium Batteries. Journal of Physical Chemistry B, 113 (7). pp. 1963-1971. ISSN 1520-6106 |
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| Relation |
http://cecri.csircentral.net/546/
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