Electrochemical properties of novel organodisulfide poly 1,2-bis(thiophen-3-ylmethyl)disulfane as cathode material for secondary lithium batteries

Guoming Weng, Yuzhi Su, Zhaoqing Liu, Jianhua Zhang, Wen Dong and Changwei Xu

Energy, 2009, vol. 34, issue 9, 1351-1354

Abstract: We successfully synthesized a new organodisulfide poly 1,2-bis(thiophen-3-ylmethyl)disulfane by a facile preparation method. The types of the chemical groups of poly-3-thienylthiophene were characterized by Fourier transform infrared spectroscopy (FTIR). The electrochemical properties of S–S bonds redox behavior in the organodisulfides were investigated in CH3CN/0.1M [Bu4N] [PF6] solution. The separation of the anodic and cathodic peak potentials for poly 1,2-bis(thiophen-3-ylmethyl)disulfane is 180mV. The results indicated that poly 1,2-bis(thiophen-3-ylmethyl)disulfane has an excellent electrochemical reversibility. The average specific capacity of 230mAhg−1 for poly-3-thienylthiophene is about 2 times higher than that of LiCoO2.

Keywords: Lithium-ion batteries; Cathode material; Poly 1,2-bis(thiophen-3-ylmethyl)disulfane; Organodisulfide; Electrochemical reversibility (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:34:y:2009:i:9:p:1351-1354

DOI: 10.1016/j.energy.2009.05.032

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