Proceedings of MATSUS Fall 2023 Conference (MATSUSFall23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.261
Publication date: 18th July 2023
The current strong interest in electromotive mobility and the need to transition to an energy grid with sustainable storage devices has led to a renewed interest in sodium ion batteries (SIBs). Hard carbons (HCs) are promising candidates for high-capacity negative electrode materials in SIBs. Their high capacities, however, are often accompanied with high irreversible capacity losses during the initial cycles,[1] while low initial losses are accompanied with moderate capacities.[2] In the DialySorb project, which is funded by the German Ministry for Research and Education, we are aiming at a local separation of reversible sodium storage and irreversible losses in novel synthetic carbon anodes, using a core-shell concept.
Advanced analytical techniques are employed to identify structure-performance relation of the core-shell anodes and will be presented in the present presntation.
Literature:
[1] Mehmood A., Ali G., Koyutürk B., Pampel J., Chung K. Y., Fellinger, T.-P., Nanoporous nitrogen doped carbons with enhanced capacity for sodium ion battery anodes, Energy Storage Materials, 2020, 28, 101-111.
[2] Matsukawa, Y.; Linsenmann, F.; Plass, M. A.; Hasegawa, G.; Hayashi, K.; Fellinger, T.-P. Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li-and Na-ion batteries, Beilstein J. Nanotechnol. 2020, 11, 1217–1229.
Thh Federal Ministry of Germany for Research and Eduction is acknowledged for the funding.
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