Symmetrical Cell for Electrochemical AC Impedance Studies of Lithium Intercalation into Graphite

The ac impedance of electrochemical lithium intercalation into graphite was studied using a symmetrical cell configuration that utilizes two almost identical graphite electrodes. This unique setup gave highly reproducible data that corresponded well to the simple equivalent circuit often used to describe this electrochemical intercalation process. © 2001 The Electrochemical Society. All rights reserved.