A room temperature Na/S battery using a beta" alumina solid electrolyte separator, tetraethylene glycol dimethyl ether electrolyte, and a S/C composite cathode
- A room temperature Na/S battery using a beta" alumina solid electrolyte separator, tetraethylene glycol dimethyl ether electrolyte, and a S/C composite cathode
- 안재평; 김액표; 박진영; 김창현; 박진우; 안주현; 김기원; 안효준
- Na-S battery; solid electrolyte; sulfur cathode; composite
- Issue Date
- Journal of power sources
- VOL 301-337
- To realize a high-performance room temperature Na/S battery with an elemental sulfur cathode, it is important that sodium polysulfides stay within the cathode and that they have room enough to react freely. In this work, sodium polysulfides are confined to the cathode using a beta '' alumina solid electrolyte separator and an optimal amount of tetraethylene glycol dimethyl ether (TEGDME) electrolyte. In addition, an activated carbon material, in the form of a sulfur/carbon (S/C) composite, with high surface area, porosity, and pore volume is employed in the cathode. The resulting Na/S battery shows a high first discharge capacity of 855 mAh g(-1) and coulombic efficiency close to 100%, as well as stable cyclability, with a discharge capacity of 521 mAh g(-1) at the 104th discharge.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.