Comparative investigation of solid electrolyte interphases created by the electrolyte additives vinyl ethylene carbonate and dicyano ketene vinyl ethylene acetal
Artikel i vetenskaplig tidskrift, 2017

The effect of the replacement of the carbonyl oxygen in VEC additive by =C(CN)(2) in the analogous dicyano ketene vinyl ethylene acetal (DCKVEA) on the electrochemical reduction profile is significant. Yet, the additives were proven, through IR spectroscopy supported by DFT computations, by applying EELS techniques and performing synthesis of a reduction product, to reduce in a similar way. Interestingly, the reduction-induced capacities were found to be quite different and can be explained either by the different properties of the SEI, from lithium carbonate and its malononitrile homologue, or by the different abilities of the two additives to solvate Li+.

Dicyano ketene alkylene acetal

SEI

Vinyl ethylene carbonate

DFT

Additives

Li-ion battery

Författare

C. Forestier

CNRS RS2E FR3459

Université de Picardie Jules Verne

Renault

Piotr Jankowski

Chalmers, Fysik, Kondenserade materiens fysik

A Wizner

Université de Picardie Jules Verne

CNRS RS2E FR3459

Carine Davoisne

CNRS RS2E FR3459

Université de Picardie Jules Verne

G. Gachot

Université de Picardie Jules Verne

CNRS RS2E FR3459

L. Sannier

Renault

S. Grugeon

CNRS RS2E FR3459

Université de Picardie Jules Verne

Patrik Johansson

Chalmers, Fysik, Kondenserade materiens fysik

Michel Armand

Université de Picardie Jules Verne

S. Laruelle

Université de Picardie Jules Verne

CNRS RS2E FR3459

Journal of Power Sources

0378-7753 (ISSN)

Vol. 345 212-220

Drivkrafter

Hållbar utveckling

Styrkeområden

Energi

Materialvetenskap

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Ämneskategorier

Kemi

DOI

10.1016/j.jpowsour.2017.01.131