Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 5, Issue 12, Pages A286-A289Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.1519970
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We report live observations of lithium polymer batteries upon cycling within the microscope antechamber by means of a scanning electron microscope, equipped with a transfer system that avoids sample air exposure. The well-established direct correlation between current density and dendrite formation is confirmed, and the formation of a mossy or dendritic interface was evidenced to be at the origin of the delaminating between the substrate, where the lithium is plated, and the polymer. These experiments enable a better understanding of the dendrite formation mechanism, like the important finding that they grow tipwise as well as sidewise. (C) 2002 The Electrochemical Society.
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