Can I read In situ atomic force microscopy study of dimensional changes during Li+ ion intercalation/de-intercalation in highly oriented pyrolytic graphite on EtoBox?

In situ atomic force microscopy study of dimensional changes during Li+ ion intercalation/de-intercalation in highly oriented pyrolytic graphite by F.P. Campana; R. Kötz; J. Vetter; P. Novák; H. Siegenthaler is a Engineering article available to read on EtoBox.

What is In situ atomic force microscopy study of dimensional changes during Li+ ion intercalation/de-intercalation in highly oriented pyrolytic graphite about?

The knowledge of dimensional changes during the electrochemical intercalation of Li + ions in a secondary Li + ion battery is of fundamental importance for a comprehensive understanding of the degradation mechanism of the negative electrode. In this work in situ electrochemical atomic force microscopy was used to measure the step height change during the intercalation/de-intercalation of Li + into the graphene layers of highly oriented pyrolytic graphite (HOPG). During the first intercalation/de-intercalation cycle an irreversible increase of graphene layer spacing of about 24 ± 7% was evidenced. During consecutive repetitive scanning between 3 and 0.005 V vs. Li/Li + , a reversible change of the step height of the HOPG of about ±17% could be observed in 1 M LiClO 4 in ethylene carbonate and dimethyl carbonate in a 1:1 (w/w) ratio. The statistical procedure to determine the height changes introduced in the present study is superior to the evaluation of single line scans.

Who reads In situ atomic force microscopy study of dimensional changes during Li+ ion intercalation/de-intercalation in highly oriented pyrolytic graphite?

Author

F.P. Campana; R. Kötz; J. Vetter; P. Novák; H. Siegenthaler

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1388-2481)

Published

2005

Language

EN

Field

Engineering (Physical Sciences)