A Metal Organic Framework Derived Solid Electrolyte for Lithium–Sulfur Batteries
Journal Article
·
· Advanced Energy Materials
- Univ. of Texas, Austin, TX (United States). Materials Science & Engineering Program. Texas Materials Inst.; Vidyasirimedhi Inst. of Science and Technology, Rayong (Thailand). Dept. of Chemical and Biomolecular Engineering. School of Energy Science and Engineering; OSTI
- Univ. of Texas, Austin, TX (United States). Materials Science & Engineering Program. Texas Materials Inst.
- Vidyasirimedhi Inst. of Science and Technology, Rayong (Thailand). Dept. of Chemical and Biomolecular Engineering. School of Energy Science and Engineering
Lithium–sulfur batteries (LSBs) are currently considered as promising candidates for next-generation energy storage technologies. However, their practical application is hindered by the critical issue of the polysulfide-shuttle. Herein, a metal organic framework (MOF)-derived solid electrolyte is presented to address it. The MOF solid electrolyte is developed based on a Universitetet i Oslo (UIO) structure. By grafting a lithium sulfonate (-SO3Li) group to the UIO ligand, both the ionic conductivity and the polysulfide-suppression capability of the resulting -SO3Li grafted UIO (UIOSLi) solid electrolyte are greatly improved. After integrating a Li-based ionic liquid (Li-IL), lithium bis(trifluoromethanesulfonyl)imide in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, the resulting Li-IL/UIOSLi solid electrolyte exhibits an ionic conductivity of 3.3 × 10-4 S cm-1 at room temperature. Based on its unique structure, the Li-IL/UIOSLi solid electrolyte effectively restrains the polysulfide shuttle and suppresses lithium dendritic growth. Lithium–sulfur cells with the Li-IL/UIOSLi solid electrolyte and a Li2S6 catholyte show stable cycling performance that preserves 84% of the initial capacity after 250 cycles with a capacity-fade rate of 0.06% per cycle.
- Research Organization:
- Univ. of Texas, Austin, TX (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0005397
- OSTI ID:
- 1801675
- Alternate ID(s):
- OSTI ID: 1632039
- Journal Information:
- Advanced Energy Materials, Journal Name: Advanced Energy Materials Journal Issue: 27 Vol. 10; ISSN 1614-6832
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synergistic Effects of Mixing Sulfone and Ionic Liquid as Safe Electrolytes for Lithium Sulfur Batteries
Journal Article
·
Tue Nov 25 19:00:00 EST 2014
· ChemSusChem
·
OSTI ID:1265459