Mesoporous graphene paper immobilised sulfur as a flexible electrode for lithium-sulfur batteries

Publisher:
RSC Publishing
Publication Type:
Journal Article
Citation:
Journal of Materials Chemistry A, 2013, 1 (43), pp. 13484 - 13489
Issue Date:
2013-01
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Free-standing flexible mesoporous graphene-sulfur nanocomposite electrodes have been prepared by a sulfur vapor treatment approach. Amorphous sulfur homogeneously was distributed in the mesoporous architectures of porous graphene paper, in which sulfur was immobilized. The as-prepared mesoporous graphenesulfur papers can be directly applied as electrodes in lithiumsulfur batteries without using a binder, conductive additives or an extra current collector. The conductive flexible porous graphene networks can effectively facilitate electron transfer and electrolyte diffusion. The free-standing sulfurgraphene nanocomposite electrodes achieved a high discharge capacity of 1393 mA h g-1 with an enhanced cycling stability and good rate performance.
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