IEEE Access, Preprint, No. 99, February 21, 2018, DOI: 10.1109/ACCESS.2018.2805281

In-situ Observations of Lithium Dendrite Growth

Lingxi Kong1, Yinjiao Xing1, and Michael G. Pecht1, Fellow, IEEE
1CALCE, Center for Advanced Life Cycle Engineering, Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20740, USA


One of the root causes of lithium battery failure is lithium dendrite formation. Dendrites can result in internal short circuits and ultimately thermal runaway, fires, and explosions. Unfortunately, it has been difficult to study dendrites due to an inability to conduct in-situ observations. This paper presents an in-situ observation approach, consisting of an optically transparent lithium battery cell to observe dendrite growth evolution while concurrently monitoring the electrical characteristics of the cell under various current densities.

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