Journal
JOURNAL OF POWER SOURCES
Volume 97-8, Issue -, Pages 151-155Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0378-7753(01)00527-4
Keywords
lithium ion battery; graphite anode; nitrogen adsorption; adsorptive potential; surface energy distribution; surface area
Ask authors/readers for more resources
For graphites as anode materials in lithium ion batteries, the chemistry and morphology of the prismatic surfaces of graphite play a major role in chemical and electrochemical reactivity, interaction with the solid electrolyte interphase (SET), kinetics for lithium intercalation and de-intercalation, etc. whereas the basal plane surfaces have only minor or no influence on these reactions. We show how gas adsorption data, such as those, which is used for determination of the Brunett-Emmet-Teller (BET) surface area of solids, can be used to estimate the absolute and relative extents of basal plane surface area and non-basal plane surface area of graphites used as anode materials in lithium ion batteries. The non-basal plane surfaces can be further sub-divided into prismatic surfaces and defect surfaces (the latter contain surface groups and other surface defects). In particular, the relation of the first cycle irreversible capacity to the different types of surfaces will be highlighted. (C) 2001 Elsevier Science B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available