Comparative investigation of solid electrolyte interphases created by the electrolyte additives vinyl ethylene carbonate and dicyano ketene vinyl ethylene acetal
Journal article, 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+.

SEI

Dicyano ketene alkylene acetal

DFT

Additives

Vinyl ethylene carbonate

Li-ion battery

Author

C. Forestier

Renault

Centre national de la recherche scientifique (CNRS)

University of Picardie Jules Verne

Piotr Jankowski

Chalmers, Physics, Condensed Matter Physics

A Wizner

Centre national de la recherche scientifique (CNRS)

University of Picardie Jules Verne

Carine Davoisne

University of Picardie Jules Verne

Centre national de la recherche scientifique (CNRS)

G. Gachot

Centre national de la recherche scientifique (CNRS)

University of Picardie Jules Verne

L. Sannier

Renault

S. Grugeon

University of Picardie Jules Verne

Centre national de la recherche scientifique (CNRS)

Patrik Johansson

Chalmers, Physics, Condensed Matter Physics

Michel Armand

University of Picardie Jules Verne

S. Laruelle

University of Picardie Jules Verne

Centre national de la recherche scientifique (CNRS)

Journal of Power Sources

0378-7753 (ISSN)

Vol. 345 212-220

Driving Forces

Sustainable development

Areas of Advance

Energy

Materials Science

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

Subject Categories

Chemical Sciences

DOI

10.1016/j.jpowsour.2017.01.131

More information

Latest update

9/7/2018 1