Carbon, volume 43, issue 10, pages 2160-2167

Correlation of the irreversible lithium capacity with the active surface area of modified carbons

Francois Béguin 1
C. Vix-Guterl 2
S. Saadallah 2
V Bertagna 1
J.-N. Rouzaud 1
Elzbieta Frackowiak 3
1
 
CRMD, CNRS-University, 1b Rue de la Férollerie, 45071 Orléans Cedex 02, France
3
 
ICSI–CNRS, 15 Rue Jean Starcky, 68057 Mulhouse, France
Publication typeJournal Article
Publication date2005-08-01
Journal: Carbon
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor10.9
ISSN00086223
General Chemistry
General Materials Science
Abstract
Negative electrodes of lithium–ion batteries are generally based on graphite. Higher storage capacities can be obtained with disordered carbons, however they demonstrate a noticeable hysteresis and irreversibility, which can preclude a practical application. In this paper, the main parameters which may affect the irreversible capacity are analyzed and we show that the irreversible lithium consumption which occurs at the negative carbon electrode during the first charge ( C irr ) is proportional to the active surface area (ASA). Composites with a reduced ASA have been obtained after coating a hard carbon or milled graphite samples with a thin film of pyrolytic carbon. Deactivating the surface by pyrolytic carbon deposition allows the irreversible capacity to be noticeably reduced, being lower than in graphite, while the reversible capacity is 50% higher than in graphite. The electrochemical properties of this new C/C composite are investigated by galvanostatic cycling at various current densities and by impedance spectroscopy. The main effect of the dense carbon coating is to hinder the diffusion of solvated lithium ions to the active sites of the carbon host during the first discharge, giving rise to a moderate development of the Solid Electrolyte Interphase (SEI).

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Béguin F. et al. Correlation of the irreversible lithium capacity with the active surface area of modified carbons // Carbon. 2005. Vol. 43. No. 10. pp. 2160-2167.
GOST all authors (up to 50) Copy
Béguin F., Chevallier F., Vix-Guterl C., Saadallah S., Bertagna V., Rouzaud J., Frackowiak E. Correlation of the irreversible lithium capacity with the active surface area of modified carbons // Carbon. 2005. Vol. 43. No. 10. pp. 2160-2167.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.carbon.2005.03.041
UR - https://doi.org/10.1016/j.carbon.2005.03.041
TI - Correlation of the irreversible lithium capacity with the active surface area of modified carbons
T2 - Carbon
AU - Béguin, Francois
AU - Chevallier, F.
AU - Vix-Guterl, C.
AU - Saadallah, S.
AU - Bertagna, V
AU - Rouzaud, J.-N.
AU - Frackowiak, Elzbieta
PY - 2005
DA - 2005/08/01 00:00:00
PB - Elsevier
SP - 2160-2167
IS - 10
VL - 43
SN - 0008-6223
ER -
BibTex |
Cite this
BibTex Copy
@article{2005_Béguin,
author = {Francois Béguin and F. Chevallier and C. Vix-Guterl and S. Saadallah and V Bertagna and J.-N. Rouzaud and Elzbieta Frackowiak},
title = {Correlation of the irreversible lithium capacity with the active surface area of modified carbons},
journal = {Carbon},
year = {2005},
volume = {43},
publisher = {Elsevier},
month = {aug},
url = {https://doi.org/10.1016/j.carbon.2005.03.041},
number = {10},
pages = {2160--2167},
doi = {10.1016/j.carbon.2005.03.041}
}
MLA
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MLA Copy
Béguin, Francois, et al. “Correlation of the irreversible lithium capacity with the active surface area of modified carbons.” Carbon, vol. 43, no. 10, Aug. 2005, pp. 2160-2167. https://doi.org/10.1016/j.carbon.2005.03.041.
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