@article{8762,
  author = {S. Kandhasamy and G. Nikiforidis and G.J. Jongerden and E.F. Jongerden and M.C. M. van de Sanden and M.N. Tsampas},
  title = {Operational strategies to improve the performance and long-term cyclability of intermediate temperature sodium-sulfur (IT-NaS) battery},
  abstract = {Based on the preliminary investigation of the intermediate temperature sodium-sulfur (IT-NaS) battery (150 °C), herein we advance this energy storage system, by re-tuning the catholyte formulation; namely i) concentration, ii) layer thickness and iii) cut-off limits during galvanostatic charge-discharge cycling, lowering the operating temperature and improving cell design. The systematic implementation of these strategies boosted the cell performance markedly, delivering 112 mAh/g-sulfur, 90% of its theoretical specific capacity (125 mAh/g-sulfur), and 50 deep reversible charge-discharge cycles with coulombic and round-trip energy efficiencies of 97 ± 3% and 73 ± 4%, respectively. Along with the stability and improvement of cycle life, this study demonstrates, for the first time, the practicality of the tubular IT-NaS technology at a temperature as low as 125 °C.
},
  year = {2021},
  journal = {ChemElectroChem},
  volume = {8},
  pages = {1156-1166},
  month = {03/2021},
  doi = {10.1002/celc.202100223},
  language = {eng},
}