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Sökning: WFRF:(Mathieu Romain) > (2018) > Diglyme based elect...

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FältnamnIndikatorerMetadata
00004964naa a2200565 4500
001oai:research.chalmers.se:5603d110-5070-414c-beb0-00730911f9d0
003SwePub
008190106s2018 | |||||||||||000 ||eng|
0247 a https://research.chalmers.se/publication/5077532 URI
0247 a https://research.chalmers.se/publication/5090022 URI
0247 a https://research.chalmers.se/publication/5100562 URI
0247 a https://doi.org/10.1021/acsaem.8b003602 DOI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Westman, Kasper,d 1990u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)kasperw
2451 0a Diglyme based electrolytes for sodium-ion batteries
264 c 2018-05-18
264 1b American Chemical Society (ACS),c 2018
520 a Sodium-ion batteries (SIBs) are currently being considered for large-scale energy storage. Optimization of SIB electrolytes is, however, still largely lacking. Here we exhaustively evaluate NaPF6 in diglyme as an electrolyte of choice, via both physicochemical properties and extensive electrochemical tests including half as well as full cells. Fundamentally, the ionic conductivity is found to be quite comparable to carbonate based electrolytes and to obey the fractional Walden rule with viscosity. We find Na metal to work well as a reference electrode and the electrochemical stability, evaluated potentiostatically for various electrodes and corroborated by DFT calculations, to be satisfactory in the entire voltage range 0-4.4 V. Galvanostatic cycling at C/10 of half and full cells using Na3V2(PO4)(3) (NVP) or Na3V2(PO4)(2)F-3 (NVPF) as cathodes and hard carbon (HC) as anodes indicates rapid capacity fading in cells with HC anodes, possibly originating in a lack of a stable SEI or by trapping of sodium. Aiming to understand this capacity fade further, we conducted a GC/MS analysis to determine electrolyte reduction products and to propose reduction pathways, concluding that oligomer and/or alkoxide formation is possible. Overall, the promising results should warrant further investigations of diglyme based electrolytes for modern SIB development, albeit avoiding HC anodes.
650 7a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng
650 7a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng
650 7a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe
650 7a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng
653 a stability
653 a batteries
653 a degradation
653 a sodium-ion
653 a electrolytes
7001 a Dugas, Romainu Collège de France4 aut
7001 a Jankowski, Piotr,d 1990u Chalmers tekniska högskola,Chalmers University of Technology,Politechnika Warszawska,Warsaw University of Technology,Centre national de la recherche scientifique (CNRS)4 aut0 (Swepub:cth)jpiotr
7001 a Wieczorek, W.u Centre national de la recherche scientifique (CNRS),Politechnika Warszawska,Warsaw University of Technology4 aut
7001 a Gachot, G.u Centre national de la recherche scientifique (CNRS),Université de Picardie Jules Verne,University of Picardie Jules Verne4 aut
7001 a Morcrette, Mathieuu Centre national de la recherche scientifique (CNRS),Université de Picardie Jules Verne,University of Picardie Jules Verne4 aut
7001 a Irisarri, Enriqueu Institut de Ciència de Materials de Barcelona (ICMAB-CSIC),Institute of Material Science of Barcelona (ICMAB)4 aut
7001 a Ponrouch, A.u Institut de Ciència de Materials de Barcelona (ICMAB-CSIC),Institute of Material Science of Barcelona (ICMAB)4 aut
7001 a Palacin, M. R.u Institut de Ciència de Materials de Barcelona (ICMAB-CSIC),Institute of Material Science of Barcelona (ICMAB),Centre national de la recherche scientifique (CNRS)4 aut
7001 a Tarascon, Jean-Marieu Collège de France,Centre national de la recherche scientifique (CNRS)4 aut
7001 a Johansson, Patrik,d 1969u Chalmers tekniska högskola,Chalmers University of Technology,Centre national de la recherche scientifique (CNRS)4 aut0 (Swepub:cth)jpatrik
7102 a Chalmers tekniska högskolab Collège de France4 org
7730 t ACS Applied Energy Materialsd : American Chemical Society (ACS)g 1:6, s. 2671-2680q 1:6<2671-2680x 2574-0962
8564 u https://digital.csic.es/bitstream/10261/177235/1/Westman_ACSApplEnMat_2018_postprint.pdf
8564 8u https://research.chalmers.se/publication/507753
8564 8u https://research.chalmers.se/publication/509002
8564 8u https://research.chalmers.se/publication/510056
8564 8u https://doi.org/10.1021/acsaem.8b00360

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