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Stability of organic Na-ion battery electrode materials: The case of disodium pyromellitic diimidate
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
2014 (English)In: Electrochemistry communications, ISSN 1388-2481, E-ISSN 1873-1902, Vol. 45, 52-55 p.Article in journal (Refereed) Published
Abstract [en]

A novel organic Na-salt is presented here for utilization as an active electrode material in rechargeable Na-ion batteries. The compound, disodium pyromellitic diimidate, is synthesized through a reaction by pyromellitic acid and sodium hydride and characterized using H-1-NMR. Na-batteries of the organic compound were able to obtain capacity values close to the theoretical during the first cycles, but a steady capacity decrease could be observed during cycling. The battery nevertheless delivered a capacity of ca 90 mAh/g after 100 cycles, rendering it a comparatively competitive organic Na-battery material. However, the results stress the importance of tailoring Na-compounds with a good chemical stability also at high levels of sodiation, since decomposition side-reactions can be probable. 

Place, publisher, year, edition, pages
2014. Vol. 45, 52-55 p.
Keyword [en]
Na-ion batteries, Organic electrode materials, N-cyclic structures, Pyromellitic diimidate
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-230068DOI: 10.1016/j.elecom.2014.05.012ISI: 000339035700013OAI: oai:DiVA.org:uu-230068DiVA: diva2:743246
Available from: 2014-09-03 Created: 2014-08-19 Last updated: 2017-12-05Bibliographically approved
In thesis
1. Organic Negative Electrode Materials For Li-ion and Na-ion Batteries
Open this publication in new window or tab >>Organic Negative Electrode Materials For Li-ion and Na-ion Batteries
2015 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Uppsala: Kph Trycksaksbolaget AB, 2015. 43 p.
Keyword
organic materials, Li-ion batteries, Na-ion batteries
National Category
Chemical Sciences
Research subject
Chemistry with specialization in Materials Chemistry
Identifiers
urn:nbn:se:uu:diva-243273 (URN)
Presentation
2015-02-27, Beurlingrummet, Uppsala, 13:15 (English)
Opponent
Supervisors
Available from: 2015-02-11 Created: 2015-02-06 Last updated: 2015-02-11Bibliographically approved

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Renault, StévenMihali, Viorica AlinaEdström, KristinaBrandell, Daniel

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