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Type: Journal article
Title: A novel type of one-dimensional organic selenium-containing fiber with superior performance for lithium-selenium and sodium-selenium batteries
Author: Wang, H.
Li, S.
Chen, Z.
Liu, H.K.
Guo, Z.
Citation: RSC Advances: an international journal to further the chemical sciences, 2014; 4(106):61673-61678
Publisher: Royal Society of Chemistry
Issue Date: 2014
ISSN: 2046-2069
Statement of
Hongqiang Wang, Sha Li, Zhixin Chen, Hua Kun Liua and Zaiping Guo
Abstract: A novel type of organic selenide fiber composed of carbonized polyacrylonitrile/selenium (CPAN/Se) has been synthesized by heating polyacrylonitrile–selenium (PAN–Se) fibers via the electrospinning technique at 600 °C. The Se molecules are confined by N-containing carbon ring structures in the form of energy-storing selenium side chains in the carbonized PAN matrix. This unique stable chemical structure with a conductive carbon skeleton connected to the selenium side chains and excellent mechanical stability can allow CPAN/Se composite cathodes to be charged and discharged in a low-cost carbonate-based electrolyte with excellent long cycle stability and quite good rate performance. The superior electrochemical performance of CPAN/Se electrodes is demonstrated in both lithium-ion and sodium-ion batteries, where they have delivered a high capacity of nearly 600 mA h g−1 for 500 cycles in lithium–selenium (Li–Se) batteries and 410 mA h g−1 for 300 cycles in sodium–selenium (Na–Se) batteries at 0.3 C, respectively.
Keywords: Lithium; sodium; performance; superior; type; fiber,; novel; containing; selenium; organic; dimensional; one; batteries
Rights: This journal is © The Royal Society of Chemistry 2014
DOI: 10.1039/c4ra10967h
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Physics publications

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