The Role of the Carbon Framework in Sulfur-Carbon Composite Cathodes in Li-S Batteries

Lithium-sulfur (Li-S) batteries are considered a promising energy storage solution for today’s society, which faces significant energy and environmental issues. Successful implementation of Li-S batteries requires the development of a robust and high-performance sulfur cathode. Unfortunately, the cu...

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Bibliographic Details
Published inElectrochimica acta Vol. 212; pp. 212 - 216
Main Authors Koh, Jeong Yoon, Kim, Seok, Park, Min-Sik, Yang, Hye Jeong, Yang, Tae Hyun, Jung, Yongju
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 10.09.2016
Subjects
Carbon Framework
Li-S Batteries
Mechanism
Sulfur-Carbon Composite
Sulfur-Carbon Composite
Carbon Framework
Li-S Batteries
Mechanism
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Summary:Lithium-sulfur (Li-S) batteries are considered a promising energy storage solution for today’s society, which faces significant energy and environmental issues. Successful implementation of Li-S batteries requires the development of a robust and high-performance sulfur cathode. Unfortunately, the current approaches focus on the development of sulfur-carbon composites without a fundamental understanding of the reduction mechanism of sulfur and the role of carbon. To develop a clear understanding of the efficacy of carbon/sulfur composites, we investigated the electrochemical behavior of Li-S batteries employing different cathode structures. Our comparative study suggests that nanoscale electrical contact between sulfur and carbon is not essential for improving the electrochemical performance of Li-S batteries or for initiating electrochemical redox reactions of the sulfur cathode.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2016.06.171