Effects of Phosphorous-doping on Electrochemical Performance and Surface Chemistry of Soft Carbon Electrodes 


Vol. 34,  No. 7, pp. 2029-2035, Jul.  2013
10.5012/bkcs.2013.34.7.2029


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  Abstract

The impact of phosphorous (P)-doping on the electrochemical performance and surface chemistry of soft carbon is investigated by means of galvanostatic cycling and ex situ X-ray photoelectron spectroscopy (XPS). P-doping plays an important role in storing more Li ions and discernibly improves reversible capacity. However, the discharge capacity retention of P-doped soft carbon electrodes deteriorated at 60 oC compared to non-doped soft carbon. This poor capacity retention could be improved by vinylene carbonate (VC) participating in forming a protective interfacial chemistry on soft carbon. In addition, the effect of P-doping on exothermic thermal reactions of lithiated soft carbon with electrolyte solution is discussed on the basis of differential scanning calorimetry (DSC) results.

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  Cite this article

[IEEE Style]

M. Kim, J. Yeon, K. Hong, S. Lee, N. Choi, S. Kim, "Effects of Phosphorous-doping on Electrochemical Performance and Surface Chemistry of Soft Carbon Electrodes," Bulletin of the Korean Chemical Society, vol. 34, no. 7, pp. 2029-2035, 2013. DOI: 10.5012/bkcs.2013.34.7.2029.

[ACM Style]

Min-Jeong Kim, Jin-Tak Yeon, Kijoo Hong, Sang-Ick Lee, Nam-Soon Choi, and Sung-Soo Kim. 2013. Effects of Phosphorous-doping on Electrochemical Performance and Surface Chemistry of Soft Carbon Electrodes. Bulletin of the Korean Chemical Society, 34, 7, (2013), 2029-2035. DOI: 10.5012/bkcs.2013.34.7.2029.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949