Electrochemical studies of graphitized mesocarbon microbeads as an anode in lithium-ion cells

The electrochemical performance of negative electrodes (anodes) made from mesocarbon microbeads (MCMB) in lithium-ion cells has been studied systematically via a variety of electrochemical techniques. The MCMB anodes have a stable lithium intercalation capacity of 325 mAh g −1 on high-rate charge–di...

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Bibliographic Details
Published in:Journal of power sources 2003-03, Vol.114 (2), p.292-297
Main Authors: Yao, Jane, Wang, G.X., Ahn, Jung-ho, Liu, H.K., Dou, S.X.
Format: Article
Language:English
Subjects:
ac impedance
Anode
Applied sciences
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
Lithium-ion battery
Mesocarbon microbeads
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Summary:The electrochemical performance of negative electrodes (anodes) made from mesocarbon microbeads (MCMB) in lithium-ion cells has been studied systematically via a variety of electrochemical techniques. The MCMB anodes have a stable lithium intercalation capacity of 325 mAh g −1 on high-rate charge–discharge cycling. Cyclic voltammetry shows only one reduction peak and one oxidation peak, which correspond to lithium-ion intercalation and de-intercalation, respectively. The diffusion of lithium ions in MCMB electrodes is characterized by ac impedance measurements.
ISSN:0378-7753
1873-2755
DOI:10.1016/S0378-7753(02)00585-2