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Facile reduction of...
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Forestier, C.Centre national de la recherche scientifique (CNRS),Université de Picardie Jules Verne,University of Picardie Jules Verne,Renault SAS,Institut National de l'Environnement Industriel et des Risques (INERIS)
(author)
Facile reduction of pseudo-carbonates: Promoting solid electrolyte interphases with dicyanoketene alkylene acetals in lithium-ion batteries
- Article/chapterEnglish2016
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LIBRIS-ID:oai:research.chalmers.se:632a0c7e-dd0d-467b-b379-5a98eae01b6e
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https://doi.org/10.1016/j.jpowsour.2015.10.103DOI
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https://research.chalmers.se/publication/233287URI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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Dicyanoketene ethylene and propylene acetals, DCKEA and DCKPA respectively, have been investigated as electrolyte additives for Li-ion batteries. The purpose was to assess the changes in reduction behaviour and solid electrolyte interphase (SEI) passivation properties upon replacing the carbonyl group of ethylene carbonate (EC) and propylene carbonate (PC) solvents, respectively, by the slightly more electronegative and highly conjugated =C(CN)(2) group. The experimental reduction potentials and the IR spectroscopy characterisation efforts were further supported by density functional theory (DFT) computations. The two additives were found to, in relatively small amount (0.5 wt%), provide beneficial effects on the capacity retention of 8 mAh cells cycled at 20 and 45 degrees C. Moreover, the additives proved to enhance the thermal stability of the lithiated graphite/electrolyte interface, as deduced from DSC measurements.
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Jankowski, Piotr,1990Politechnika Warszawska,Warsaw University of Technology,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jpiotr
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Coser, L.Université de Picardie Jules Verne,University of Picardie Jules Verne,Centre national de la recherche scientifique (CNRS)
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Gachot, G.Centre national de la recherche scientifique (CNRS),Université de Picardie Jules Verne,University of Picardie Jules Verne
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Sannier, L.Renault SAS
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Johansson, Patrik,1969Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jpatrik
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Armand, M.Université de Picardie Jules Verne,University of Picardie Jules Verne
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Grugeon, S.Centre national de la recherche scientifique (CNRS),Université de Picardie Jules Verne,University of Picardie Jules Verne
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Laruelle, S.Université de Picardie Jules Verne,University of Picardie Jules Verne,Centre national de la recherche scientifique (CNRS)
(author)
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Centre national de la recherche scientifique (CNRS)Université de Picardie Jules Verne
(creator_code:org_t)
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In:Journal of Power Sources: Elsevier BV303, s. 1-90378-7753
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