@article{27697,
  author = {Liwen Ji and Mumin Rao and Haimei Zheng and Liang Zhang and Yuanchang Li and Wenhui Duan and Jinghua Guo and Elton J Cairns and Yuegang Zhang},
  title = {Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells},
  abstract = {<p>The loss of sulfur cathode material as a result of polysulfide dissolution causes significant capacity fading in rechargeable lithium/sulfur cells. Here, we use a chemical approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graphene oxide. This approach enabled us to obtain a uniform and thin (around tens of nanometers) sulfur coating on graphene oxide sheets by a simple chemical reaction–deposition strategy and a subsequent low-temperature thermal treatment process. Strong interaction between graphene oxide and sulfur or polysulfides enabled us to demonstrate lithium/sulfur cells with a high reversible capacity of 950–1400 mA h g<sup>–1</sup>, and stable cycling for more than 50 deep cycles at 0.1C (1C = 1675 mA g<sup>–1</sup>).</p>},
  year = {2011},
  journal = {Journal of the American Chemical Society},
  volume = {133},
  number = {46},
  pages = {18522-18525},
  month = {10/2011},
  doi = {10.1021/ja206955k},
  language = {eng},
}