Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 148, Issue 9, Pages A1029-A1033Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.1390344
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Identical electrodes wound in both a cylindrical and a prismatic configuration provided different capacity fade rates. At the completion of 300 cycles with a C/2 charge and 1C discharge, the prismatic cells faded 24% and the cylindrical cells faded 16%. In the cylindrical-type cell, the fade was primarily caused by a reduction in the capacity of the cathode. The higher fade rate in the prismatic cell was attributed to lower cell stack pressure which resulted in more anode swelling during cycling. The increased porosity of the anode in this cell reduced the integrity of the electrical conduction network causing many graphite particles to become isolated or less accessible. (C) 2001 The Electrochemical Society.
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