LiFAP-based PVdF–HFP microporous membranes by phase-inversion technique with Li/LiFePO4 cell
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
LiFAP-based PVdF–HFP microporous membranes
by phase-inversion technique with Li/LiFePO4 cell
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| Creator |
Aravindan, V.
Vickraman, P. Shivashanmugam, A. Thirunakaran, R. Gopukumar, S. |
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| Subject |
Lithium batteries
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| Description |
Polyvinylidenefluoride–hexafluoropropylene-based
(PVdF–HFP-based) gel and composite microporous
membranes (GPMs and CPMs) were prepared by phaseinversion
technique in the presence 10 wt% of AlO(OH)n
nanoparticles. The prepared membranes were gelled with
0.5-M LiPF3(CF2CF3)3 (lithium fluoroalkylphosphate, Li-
FAP) in EC:DEC (1 : 1 v/v) and subjected to various characterizations;
the AC impedance study shows that CPMs exhibit
higher conductivity than GPMs. Mechanical stability
measurements on these systems reveal that CPMs exhibit
Young’s modulus higher than that of bare and GPMs and
addition of nanoparticles drastically improves the elongation
break was also noted. Transition of the host from α to β
phase after the loading of nanosized filler was confirmed by
XRD and Raman studies. Physico-chemical properties, like
liquid uptake, porosity, surface area, and activation energy,
of the membranes were calculated and results are summarized.
Cycling performance of Li/CPM/LiFePO4 coin cell
was fabricated and evaluated at C/10 rate and delivered a discharge capacity of 157 and 148 mAhg−1 respectively for
first and tenth cycles.
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| Publisher |
Springer-Verlag
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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/250/1/004-2009.pdf
Aravindan, V. and Vickraman, P. and Shivashanmugam, A. and Thirunakaran, R. and Gopukumar, S. (2009) LiFAP-based PVdF–HFP microporous membranes by phase-inversion technique with Li/LiFePO4 cell. Applied Physics A, 97 (4). pp. 811-819. ISSN 0947-8396 |
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| Relation |
http://cecri.csircentral.net/250/
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