The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
A comprehensive study on the cell chemistry of the sodium superoxide (NaO2) battery
Abstract
This work reports on the cell chemistry of a room temperature sodium-oxygen battery using an electrolyte of diethylene glycol dimethyl ether (diglyme) and sodium trifluoromethanesulfonate (NaSO3CF3, sodium triflate). Different from lithium-oxygen cells, where lithium peroxide is found as the discharge product, sodium superoxide (NaO2) is formed in the present cell, with overpotentials as low as 100 mV during charging. Several analytical methods are used to follow the cell reaction during discharge and charge. Changes in structure and morphology are studied by SEM and XRD. It is found that NaO2 grows as cubic particles with feed sizes in the range of 10-50 μm; upon recharge the particles consecutively decompose. Pressure monitoring during galvanostatic cycling shows that the coulombic efficiency (e(-)/O2) for discharge and charge is approx. 1.0, the expected value for NaO2 formation. Also optical spectroscopy is identified as a convenient and useful tool to follow the discharge-charge process. The maximum discharge capacity is found to be limited by oxygen transport within the electrolyte soaked carbon fiber cathode and pore blocking near the oxygen interface is observed. Finally electrolyte decomposition and sodium dendrite growth are identified as possible reasons for the limited capacity retention of the cell. The occurrence of undesired side reactions is analyzed by DEMS measurements during cycling as well as by post mortem XPS investigations.
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Cites
Li-O2 and Li-S batteries with high energy storage
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Sodium Metal Anodes: Emerging Solutions to Dendrite Growth
Lee, B., Paek, E., Mitlin, D., & Lee, S. W. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00642 · Cited by 940
Gao, X., Chen, Y., Johnson, L., & Bruce, P. G. (2016) · Nature Materials · doi:10.1038/nmat4629 · Cited by 599
From lithium to sodium: Cell chemistry of room temperature sodium–air and sodium–sulfur batteries
Adelhelm, P., Hartmann, P., Bender, C. L., Busche, M., Eufinger, C., & Janek, J. (2015) · Beilstein Journal of Nanotechnology · doi:10.3762/bjnano.6.105 · Cited by 478
Self-citationEmerging electrochemical energy conversion and storage technologies
Badwal, S. P. S., Giddey, S. S., Munnings, C., Bhatt, A. I., & Hollenkamp, A. F. (2014) · Frontiers in Chemistry · doi:10.3389/fchem.2014.00079 · Cited by 478
Designable ultra-smooth ultra-thin solid-electrolyte interphases of three alkali metal anodes
Gu, Y., Wang, W.-W., Li, Y.-J., Wu, Q.-H., Tang, S., Yan, J.-W., Zheng, M.-S., Wu, D.-Y., Fan, C.-H., Hu, W.-Q., et al. (2018) · Nature Communications · doi:10.1038/s41467-018-03466-8 · Cited by 355
Metadata
- Authors
- Hartmann, P., Bender, C. L., Sann, J., Dürr, A. K., Jansen, M., Janek, J., & Adelhelm, P.
- Venue
- Physical Chemistry Chemical Physics
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 15
- Issue
- 28
- Pages
- 11661
- ISSN
- 1463-9076 (ISSN-L)
- 1463-9084
- OpenAlex
- W2064471744
- Cited by
- 273
- References
- 31
- FWCI
- 19.77
- Type
- journal article
- Language
- en
- Open access
- closed
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