forsyth-aninvestigationof-2020.pdf (2.23 MB)
An investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries
journal contribution
posted on 2020-01-01, 00:00 authored by The An Ha, Cristina Pozo-GonzaloCristina Pozo-Gonzalo, K Nairn, D R MacFarlane, Maria ForsythMaria Forsyth, Patrick HowlettPatrick Howlett© 2020, The Author(s). In order to bridge the gap between theoretical and practical energy density in sodium oxygen batteries challenges need to be overcome. In this work, four commercial air cathodes were selected, and the impacts of their morphologies, structure and chemistry on their performance with a pyrrolidinium-based ionic liquid electrolyte are evaluated. The highest discharge capacity was found for a cathode with a pore size ca. 6 nm; this was over 100 times greater than that delivered by a cathode with a pore size less than 2 nm. The air cathode with the highest specific surface area and the presence of a microporous layer (BC39) exhibited the highest specific capacity (0.53 mAh cm−2).
History
Journal
Scientific ReportsVolume
10Issue
1Article number
10:7123Pagination
1 - 10Publisher
Nature Publishing GroupLocation
London, Eng.Publisher DOI
Link to full text
eISSN
2045-2322Publication classification
C1 Refereed article in a scholarly journalUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC