Abstract
A careful study of electrochemical lithiation of a composite graphite electrode at elevated temperatures was performed using a potentiostatic intermittent titration technique. Special emphasis was placed on the stage 4 to stage 3 phase transition, occurring in the range of x (in Li x C6) between 0.12 and 0.22 (this corresponds to the partial dimensionless intercalation level θ ranging from 0 to 1). An abrupt increase in the Li chemical diffusion coefficient, D chem, when approaching the relative coverage level θ=1/3, and a specific non-Arrhenius shape of the plot of D chem vs. the inverse of the absolute temperature were observed. These two features of the phase transition seem to be in agreement with a recent thermodynamic model for adatoms diffusing on a surface with two considerably different barrier energy sites.
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References
Dahn JR (1991) Phys Rev B 44:9170
Ohzuku T, Iwakoshi Y, Sawai K (1993) J Electrochem Soc 140:2490
Fischer JE, Kim HJ (1988) Synth Met 23:121
Levi MD, Levi E, Aurbach D (1997) J Electroanal Chem 421:89
Herold A (1979) In: Levy FA (ed) Intercalated layered materials. Reidel, Dordrecht, p 330
Chvoj Z, Conrad H, Chab V (1997) Surf Sci 376:205
Chvoj Z, Conrad H, Chab V (1999) Surf Sci 442:455
McKinnon WR, Haering RR (1987) In: Bockris JO'M (ed) Modern aspects in electrochemistry, vol 15. Plenum Press, New York, p 235
Levi MD, Wang C, Aurbach D, Chvoj Z (2003) J Electroanal Chem (in press)
Levi MD, Aurbach D (1997) J Phys Chem B 101:4630
Levi MD, Aurbach D (1997) J Phys Chem B 101:4641
Wen CJ, Boukamp BA, Huggins RA, Weppner W (1979) J Electrochem Soc 126:2258
Catti M (2000) Phys Rev B 61:1795
Kleinberg RL, Silbernagel BG (1980) Solid State Commun 36:345
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Presented at the 3rd International Meeting on Advanced Batteries and Accumulators, 16–20 June 2002, Brno, Czech Republic
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Levi, M.D., Wang, C., Markevich, E. et al. Noteworthy electroanalytical features of the stage 4 to stage 3 phase transition in lithiated graphite. J Solid State Electrochem 8, 40–43 (2003). https://doi.org/10.1007/s10008-003-0404-x
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DOI: https://doi.org/10.1007/s10008-003-0404-x