Sulfur Encapsulated in Graphitic Carbon Nanocages for High-Rate and Long-Cycle Lithium-Sulfur Batteries.
basic_science · Level V
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- Record sourced from PubMed, PMID 27620697.
- Also identified by DOI 10.1002/adma.201602913.
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Abstract
Hybrid sp<sup>2</sup> carbon with a graphene backbone and graphitic carbon nanocages (G-GCNs) is demonstrated as an ideal host for sulfur in Li-S batteries, because it serves as highly efficient electrochemical nanoreactors as well as polysulfides reservoirs. The as-obtained S/(G-GCNs) with high S content exhibits superior high-rate capability (765 mA h g<sup>-1</sup> at 5 C) and long-cycle life over 1000 cycles.