Issue 76, 2013

Why PEO as a binder or polymer coating increases capacity in the Li–S system

Abstract

PEO, used either as a binder or a polymer coating, and PEGDME, used as an electrolyte additive, are shown to increase the reversible capacity of Li–S cells. The effect, in all three cases, is the same: an improved solvent system for the electrochemistry of sulfur species and suppression of cathode passivation on discharge. This constitutes a novel interpretation of the mechanistic behaviour of polyethers in the Li–S system, and sheds new light upon several previous studies.

Graphical abstract: Why PEO as a binder or polymer coating increases capacity in the Li–S system

Article information

Article type
Communication
Submitted
25 Jun 2013
Accepted
08 Aug 2013
First published
09 Aug 2013

Chem. Commun., 2013,49, 8531-8533

Why PEO as a binder or polymer coating increases capacity in the Li–S system

M. J. Lacey, F. Jeschull, K. Edström and D. Brandell, Chem. Commun., 2013, 49, 8531 DOI: 10.1039/C3CC44772C

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