@article{27820,
  keywords = {Self-discharge, Current-collector, Li–S cell, Open-circuit voltage, Stainless steel},
  author = {Ho-Suk Ryu and Hyo-Jun Ahn and Ki-Won Kim and Jou-Hyeon Ahn and Jeong Yong Lee and Elton J Cairns},
  title = {Self-discharge of lithium–sulfur cells using stainless-steel current-collectors},
  abstract = {<p>The self-discharge behaviour of Li–S cell, is investigated through changes in the open-circuit voltage (OCV) and discharge capacity with storage time. A fresh Li–S cell experiences 72% sulfur utilization during the first discharge, as based on the theoretical capacity for the formation of Li<sub>2</sub>S. After 30 days of storage, the OCV has fallen from 2.48 to 2.16&nbsp;V and the discharge capacity has decreased from 1206 to 924&nbsp;mAh&nbsp;g<sup>−1</sup> (based on sulfur). Analysis of the self-discharged sample by a variety of techniques shows the formation of lithium polysulfides, such as Li<sub>2</sub>S<sub><em>n</em></sub> (<em>n</em> ≥ 1) from the reaction of lithium and sulfur, which is related to the corrosion of the stainless current-collector. Stainless steel is not the most appropriate current-collector material for Li–S cells. The extent of self-discharge can be decreased by using a gold-coated current-collector that offers protection against corrosion.</p>},
  year = {2005},
  journal = {Journal of Power Sources},
  volume = {140},
  pages = {365-369},
  month = {02/2005},
  issn = {03787753},
  doi = {10.1016/j.jpowsour.2004.08.039},
}