Electrochemical and X-ray photoelectron spectroscopy studies of carbon black as an additive in Li batteries
Manickam, M. and Takata, M. (2002) Electrochemical and X-ray photoelectron spectroscopy studies of carbon black as an additive in Li batteries. Journal of Power Sources, 112 (1). pp. 116-120.
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The effect of carbon black (acetylene black) as a cathode additive in lithium batteries was studied using electrochemical and X-ray photoelectron spectroscopy (XPS) measurements. The characteristic discharge curves for various weight percent (wt.%) of carbon black were obtained. The optimum wt.% of carbon black as a compromise between the desire to have active material present and the necessity to have a conduction path through the pores of the electrodes was obtained. It is shown that the behavior of carbon exhibits porosity rather than electronic conductivity. XPS results show that the C 1s peak at 283 eV corresponding to acetylene black, decreases during discharge and increases during charge. These results suggest that porosity of the electrode decreases during discharge and increases during charge.
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|Copyright:||© 2002 Elsevier Science B.V.|
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