Jump to main content
Jump to site search

Issue 1, 2013
Previous Article Next Article

Li–S batteries: simple approaches for superior performance

Author affiliations

Abstract

Although promising improvements have been made in the field of Li–S rechargeable batteries, they are still far from reaching the market place due to several drawbacks. To combat the solubility of polysulphides, confinement approaches aiming to trap sulphur within the cathode side have been pursued, but success has been limited. Herein, we drastically deviate from this approach and use a liquid cathode obtained either by dissolving polysulphides within the electrolyte or by placing sulphur powders in contact with the Li negative electrode. Such approaches are shown to result in greater performance than confinement approaches. Such a strategy eliminates the detrimental Li2S formation inside a porous carbon matrix and moreover leads to the formation of a protective SEI layer at the Li electrode, as deduced by impedance spectroscopy and XPS, which seems beneficial to the cell cycling performance.

Graphical abstract: Li–S batteries: simple approaches for superior performance

Back to tab navigation

Supplementary files

Publication details

The article was received on 11 Aug 2012, accepted on 23 Oct 2012 and first published on 23 Oct 2012


Article type: Paper
DOI: 10.1039/C2EE23411D
Citation: Energy Environ. Sci., 2013,6, 176-182
  •   Request permissions

    Li–S batteries: simple approaches for superior performance

    R. Demir-Cakan, M. Morcrette, Gangulibabu, A. Guéguen, R. Dedryvère and J. Tarascon, Energy Environ. Sci., 2013, 6, 176
    DOI: 10.1039/C2EE23411D

Search articles by author

Spotlight

Advertisements