Sulfur-Infiltrated Micro- and Mesoporous Silicon Carbide-Derived Carbon Cathode for High-Performance Lithium Sulfur Batteries

Novel nanostructured sulfur (S)–carbide derived carbon (CDC) composites with ordered mesopores and high S content are successfully prepared for lithium sulfur batteries. The tunable pore‐size distribution and high pore volume of CDC allow for an excellent electrochemical performance of the composite...

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Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 25; no. 33; pp. 4573 - 4579
Main Authors Lee, Jung Tae, Zhao, Youyang, Thieme, Sören, Kim, Hyea, Oschatz, Martin, Borchardt, Lars, Magasinski, Alexandre, Cho, Won-Il, Kaskel, Stefan, Yushin, Gleb
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 06.09.2013
WILEY‐VCH Verlag
Subjects
carbide-derived carbon
Carbon
Cathodes
Concentration (composition)
confinement
Cycles
Density
dissolution
Electrolytes
Li-S
Lithium sulfur batteries
nanocomposites
polysulfide
Porosity
polysulfide
carbide-derived carbon
confinement
nanocomposites
Li-S
dissolution
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Summary:Novel nanostructured sulfur (S)–carbide derived carbon (CDC) composites with ordered mesopores and high S content are successfully prepared for lithium sulfur batteries. The tunable pore‐size distribution and high pore volume of CDC allow for an excellent electrochemical performance of the composites at high current densities. A higher electrolyte molarity is found to enhance the capacity utilization dramatically and reduce S dissolution in S‐CDC composite cathodes during cycling.
Bibliography:istex:6A0F6F21E6A1581C1D51C49AFEE1A55363BF48DA
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ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201301579