Kim, Icpyo Park, Jin-Young Kim, Chang Hyeon Park, Jin-Woo Ahn, Jae-Pyoung Ahn, Jou-Hyeon Kim, Ki-Won Ahn, Hyo-Jun 2024-01-20T05:03:38Z 2024-01-20T05:03:38Z 2021-09-03 2016-01-01 0378-7753 https://pubs.kist.re.kr/handle/201004/124517 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. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV SODIUM-SULFUR BATTERIES NANOTUBE FABRIC ELECTRODES ENERGY-STORAGE S BATTERY LIQUID A room temperature Na/S battery using a beta '' alumina solid electrolyte separator, tetraethylene glycol dimethyl ether electrolyte, and a S/C composite cathode Article 10.1016/j.jpowsour.2015.09.120 1 JOURNAL OF POWER SOURCES, v.301, pp.332 - 337 JOURNAL OF POWER SOURCES 301 332 337 scie scopus 000365060500043 2-s2.0-84945184870 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article SODIUM-SULFUR BATTERIES NANOTUBE FABRIC ELECTRODES ENERGY-STORAGE S BATTERY LIQUID Sulfur cathode Sulfur/carbon composite beta &apos &apos alumina Solid electrolyte Sodium/sulfur battery