Journal
ADVANCED MATERIALS
Volume 25, Issue 11, Pages 1608-1615Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201204051
Keywords
lithium-sulfur battery; ultrasound-assisted synthesis; fluorinated ether electrolyte
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Funding
- Center for Electrical Energy Storage: Tailored Interfaces, an Energy Frontier Research Center
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences
- U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357]
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A one-step, eco-friendly ultrasound-assisted process is established for the rapid synthesis of sulfur-carbon composite cathode materials, avoiding the widely used, energy inefficient melt-down process for Li-S batteries. It is demonstrated that, without inserting sulfur into pores of carbon, the coulombic efficiency of SC/Li cell in the new DOL/D2 electrolyte is greater than 96% for 100 cycles, which is far superior to the reported numerous electrolyte formulations. [GRAPHICS] .
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