Unstacked double-layer templated graphene for high-rate lithium-sulphur batteries

Meng Qiang Zhao, Qiang Zhang, Jia Qi Huang, Gui Li Tian, Jing Qi Nie, Hong Jie Peng, Fei Wei

Research output: Contribution to journalArticlepeer-review

619 Scopus citations

Abstract

Preventing the stacking of graphene is essential to exploiting its full potential in energy-storage applications. The introduction of spacers into graphene layers always results in a change in the intrinsic properties of graphene and/or induces complexity at the interfaces. Here we show the synthesis of an intrinsically unstacked double-layer templated graphene via template-directed chemical vapour deposition. The as-obtained graphene is composed of two unstacked graphene layers separated by a large amount of mesosized protuberances and can be used for high-power lithium-sulphur batteries with excellent high-rate performance. Even after 1,000 cycles, high reversible capacities of ca. 530 mA h g-1 and 380 mA h g-1 are retained at 5 C and 10 C, respectively. This type of double-layer graphene is expected to be an important platform that will enable the investigation of stabilized three-dimensional topological porous systems and demonstrate the potential of unstacked graphene materials for advanced energy storage, environmental protection, nanocomposite and healthcare applications.

Original languageEnglish (US)
Article number3410
JournalNature communications
Volume5
DOIs
StatePublished - Mar 3 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Biochemistry, Genetics and Molecular Biology
  • General Physics and Astronomy

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