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Sulfur‐Infiltrated Micro‐ and Mesoporous Silicon Carbide‐Derived Carbon Cathode for High‐Performance Lithium Sulfur Batteries
Author(s) -
Lee Jung Tae,
Zhao Youyang,
Thieme Sören,
Kim Hyea,
Oschatz Martin,
Borchardt Lars,
Magasinski Alexandre,
Cho WonIl,
Kaskel Stefan,
Yushin Gleb
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201301579
Subject(s) - materials science , electrolyte , sulfur , carbon fibers , cathode , lithium (medication) , mesoporous material , dissolution , silicon carbide , electrochemistry , bismuth , nanotechnology , chemical engineering , composite number , composite material , electrode , organic chemistry , metallurgy , catalysis , chemistry , medicine , engineering , endocrinology
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.