Journal article

Publication year: 2017

Pages: 2265-2274

Journal: Energy Technology

Volume number: 5

Issue number: 12

ISSN: 2194-4288

DOI Link: https://doi.org/10.1002/ente.201700326

Publisher: Wiley-VCH Verlag

Abstract: 
One limiting phenomenon for the cycle life of metal-oxygen batteries is the growth of dendrites during metal plating (cell charging). For the relatively new sodium-oxygen cell, this subject has been scarcely investigated, until now. Therefore, dendrite formation is systematically investigated herein, with the aim of gaining a more detailed understanding of the underlying mechanisms and relevant control parameters. Electrochemical impedance spectroscopy, cycling experiments, and optical characterization techniques are applied in situ and ex situ; sodium dendrite growth is directly visualized, for the first time, by means of a tubular glass cell. The growth of instable surface morphologies is discussed from a theoretical perspective to comprehend the experimentally observed dendrite growth. Furthermore, countermeasures against issues with dendrites are discussed, with the aim of increasing the cycle life of sodium-oxygen batteries.

Harvard Citation style: Medenbach, L., Bender, C., Haas, R., Mogwitz, B., Pompe, C., Adelhelm, P., et al. (2017) Origins of Dendrite Formation in Sodium-Oxygen Batteries and Possible Countermeasures, Energy Technology, 5(12), pp. 2265-2274. https://doi.org/10.1002/ente.201700326

APA Citation style: Medenbach, L., Bender, C., Haas, R., Mogwitz, B., Pompe, C., Adelhelm, P., Schröder, D., & Janek, J. (2017). Origins of Dendrite Formation in Sodium-Oxygen Batteries and Possible Countermeasures. Energy Technology. 5(12), 2265-2274. https://doi.org/10.1002/ente.201700326