Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 4, Pages 1433-1440Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ta00779g
Keywords
-
Funding
- Energy Materials Center at Cornell, an Energy Frontier Research Center
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DESC0001086]
- National Science Foundation [IIP-1237622]
- Directorate For Engineering
- Div Of Industrial Innovation & Partnersh [1237622, 1114275] Funding Source: National Science Foundation
Ask authors/readers for more resources
Lithium-sulfur batteries are among the most promising candidates for next-generation rechargeable lithium batteries in view of recent progress on sulfur-carbon composite cathodes. However, further progress on such batteries is hampered by their concomitant need for a metallic lithium anode, which introduces new challenges associated with uneven electrodeposition and lithium dendrite formation. Here we report a method of creating lithium sulfide-carbon composites as cathode materials, which can be paired with high-capacity anodes other than metallic lithium. Lithium sulfide is dispersed in a porous carbon matrix, which serves to improve its electrical conductivity and provides a framework for sequestration of sulfur and lithium polysulfides. The in situ synthesis approach allows facile, scalable synthesis of lithium sulfide-carbon composite materials that exhibit improved electrochemical properties. We also investigate the effect of lithium polysulfides dissolved in the electrolyte on the stability and cycling behavior of Li2S-carbon composite cathodes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available