@article{31870,
  author = {Yoon Hwa and Eongyu Yi and Hao Shen and Younghoon Sung and Jiawei Kou and Kai Chen and Dilworth Y Parkinson and Marca M Doeff and Elton J Cairns},
  title = {Three-Dimensionally Aligned Sulfur Electrodes by Directional Freeze Tape Casting},
  abstract = {<p>Rational design of sulfur electrodes is exceptionally important in enabling a high-performance lithium/sulfur cell. Constructing a continuous pore structure of the sulfur electrode that enables facile lithium ion transport into the electrode and mitigates the reconstruction of sulfur is a key factor for enhancing the electrochemical performance. Here, we report a three-dimensionally (3D) aligned sulfur electrode cast onto conventional aluminum foil by directional freeze tape casting. The 3D aligned sulfur{\textendash}graphene oxide (S{\textendash}GO) electrode consisting of few micron thick S{\textendash}GO layers with 10{\textendash}20 μm interlayer spacings demonstrates significant improvement in the performance of the Li/S cell. Moreover, the freeze tape cast graphene oxide electrode exhibits homogeneous reconfiguration behavior in the polysulfide catholyte cell tests and demonstrated extended cycling capability with only 4\% decay of the specific capacity over 200 cycles. This work emphasizes the critical importance of proper structural design for sulfur{\textendash}carbonaceous composite electrodes.</p>},
  year = {2019},
  booktitle = {Nano Letters},
  journal = {Nano Letters},
  series = {Nano Letters},
  volume = {19},
  pages = {4731 - 4737},
  month = {06/2019},
  issn = {1530-6984},
  doi = {10.1021/acs.nanolett.9b01805},
  language = {eng},
}