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Electrochemical cha...
Electrochemical characterization of poly(vinylidene fluoride-co-hexafluoro propylene) based electrospun gel polymer electrolytes incorporating moth temperature ionic liquids as green electrolytes for lithium batteries
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- Raghavan, P. (author)
- Gyeongsang National University
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- Zhao, X. (author)
- Gyeongsang National University
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- Choi, H. (author)
- Gyeongsang National University
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- Lim, Du Hyun, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kim, Jae-Kwang, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Matic, Aleksandar, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Jacobsson, Per, 1958 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nah, C. (author)
- Chonbuk National University
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- Ahn, J. H. (author)
- Gyeongsang National University
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- English.
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In: Solid State Ionics. - : Elsevier BV. - 0167-2738. ; 262, s. 77-82
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https://doi.org/10.1...
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Abstract
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- A series of gel polymer electrolytes (GPEs) based on electrospun membranes of poly(vinylidene fluoride-co-hexafluoropropylene) [P(VdF-co-HFP)] incorporating room temperature ionic liquids (RTILs), 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide complexed with lithium bis(trifluoromethylsulfonyl) inside (LiTFSI) as electrolytes have been prepared and their fundamental electrochemical properties were investigated. The morphology of electrospun membranes was examined by a field emission scanning electron microscope (FE-SEM). The membranes show uniform morphology with an average fiber diameter of 780 nm, high porosity and high electrolyte uptake. GPEs were prepared by soaking the electrospun membranes in 1 M LiTFSI in RTILs for 1 h and exhibit a high ionic conductivity of 2.4 x 10(-3)-4.5 x 10(-3) S cm(-1) at 25 degrees C. A Li/GPEs/LiFePO4 cell using these RTILs delivers high discharge capacity (similar to 140 mAh g(-1)) when evaluated at 25 degrees C at 0.1 C-rate and exhibits a very stable discharge capacity under continuous cycling. Among the GPEs, EMITFSI shows the highest electrochemical properties although the solid electrolyte interface (SEI) layer was not formed.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Raghavan, P.
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Zhao, X.
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Choi, H.
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Lim, Du Hyun, 19 ...
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Kim, Jae-Kwang, ...
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Matic, Aleksanda ...
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show more...
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Jacobsson, Per, ...
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Nah, C.
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Ahn, J. H.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Solid State Ioni ...
- By the university
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Chalmers University of Technology