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Title: Advanced Intermediate-Temperature Na-S Battery

Abstract

In this study, we reported an intermediate-temperature (~150°C) sodium-sulfur (Na-S) battery. With a reduced operating temperature, this novel battery can potentially reduce the cost and safety issues associated with the conventional high-temperature (300~350°C) Na-S battery. A dense β"-Al 2O 3 solid membrane and tetraglyme were utilized as the electrolyte separator and catholyte solvent in this battery. Solubility tests indicated that cathode mixture of Na 2S 4 and S exhibited extremely high solubility in tetraglyme (e.g., > 4.1 M for Na 2S 4 + 4 S). CV scans of Na 2S 4 in tetraglyme revealed two pairs of redox couples with peaks at around 2.22 and 1.75 V, corresponding to the redox reactions of polysulfide species. The discharge/charge profiles of the Na-S battery showed a slope region and a plateau, indicating multiple steps and cell reactions. In-situ Raman measurements during battery operation suggested that polysulfide species were formed in the sequence of Na 2S 5 + S → Na 2S 5 + Na 2S 4→ Na 2S 4 + Na 2S 2 during discharge and in a reverse order during charge. This battery showed dramatic improvement in rate capacity and cycling stability over room-temperature Na-S batteries, which makes it attractive formore » renewable energy integration and other grid related applications.« less

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1060102
Report Number(s):
PNNL-SA-91777
Journal ID: ISSN 1754-5692; TE1400000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Energy & Environmental Science
Additional Journal Information:
Journal Volume: 6; Journal Issue: 1; Journal ID: ISSN 1754-5692
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Lu, Xiaochuan, Kirby, Brent W., Xu, Wu, Li, Guosheng, Kim, Jin Yong, Lemmon, John P., Sprenkle, Vincent L., and Yang, Zhenguo. Advanced Intermediate-Temperature Na-S Battery. United States: N. p., 2012. Web. doi:10.1039/C2EE23606K.
Lu, Xiaochuan, Kirby, Brent W., Xu, Wu, Li, Guosheng, Kim, Jin Yong, Lemmon, John P., Sprenkle, Vincent L., & Yang, Zhenguo. Advanced Intermediate-Temperature Na-S Battery. United States. doi:10.1039/C2EE23606K.
Lu, Xiaochuan, Kirby, Brent W., Xu, Wu, Li, Guosheng, Kim, Jin Yong, Lemmon, John P., Sprenkle, Vincent L., and Yang, Zhenguo. Mon . "Advanced Intermediate-Temperature Na-S Battery". United States. doi:10.1039/C2EE23606K.
@article{osti_1060102,
title = {Advanced Intermediate-Temperature Na-S Battery},
author = {Lu, Xiaochuan and Kirby, Brent W. and Xu, Wu and Li, Guosheng and Kim, Jin Yong and Lemmon, John P. and Sprenkle, Vincent L. and Yang, Zhenguo},
abstractNote = {In this study, we reported an intermediate-temperature (~150°C) sodium-sulfur (Na-S) battery. With a reduced operating temperature, this novel battery can potentially reduce the cost and safety issues associated with the conventional high-temperature (300~350°C) Na-S battery. A dense β"-Al2O3 solid membrane and tetraglyme were utilized as the electrolyte separator and catholyte solvent in this battery. Solubility tests indicated that cathode mixture of Na2S4 and S exhibited extremely high solubility in tetraglyme (e.g., > 4.1 M for Na2S4 + 4 S). CV scans of Na2S4 in tetraglyme revealed two pairs of redox couples with peaks at around 2.22 and 1.75 V, corresponding to the redox reactions of polysulfide species. The discharge/charge profiles of the Na-S battery showed a slope region and a plateau, indicating multiple steps and cell reactions. In-situ Raman measurements during battery operation suggested that polysulfide species were formed in the sequence of Na2S5 + S → Na2S5 + Na2S4→ Na2S4 + Na2S2 during discharge and in a reverse order during charge. This battery showed dramatic improvement in rate capacity and cycling stability over room-temperature Na-S batteries, which makes it attractive for renewable energy integration and other grid related applications.},
doi = {10.1039/C2EE23606K},
journal = {Energy & Environmental Science},
issn = {1754-5692},
number = 1,
volume = 6,
place = {United States},
year = {2012},
month = {11}
}