KIT | KIT-Bibliothek | Impressum | Datenschutz

Homogeneity of lithium distribution in cylinder-type Li-ion batteries

Senyshyn, A.; Mühlbauer, M. J. 1; Dolotko, O.; Hofmann, M.; Ehrenberg, H. 1
1 Institut für Angewandte Materialien (IAM), Karlsruher Institut für Technologie (KIT)

Abstract:

Spatially-resolved neutron powder diffraction with a gauge volume of 2 × 2 × 20 mm$^{3}$ has been applied as an in situ method to probe the lithium concentration in the graphite anode of different Li-ion cells of 18650-type in charged state. Structural studies performed in combination with electrochemical measurements and X-ray computed tomography under real cell operating conditions unambiguously revealed non-homogeneity of the lithium distribution in the graphite anode. Deviations from a homogeneous behaviour have been found in both radial and axial directions of 18650-type cells and were discussed in the frame of cell geometry and electrical connection of electrodes, which might play a crucial role in the homogeneity of the lithium distribution in the active materials within each electrode.


Volltext §
DOI: 10.5445/IR/1000052788
Originalveröffentlichung
DOI: 10.1038/srep18380
Scopus
Zitationen: 58
Web of Science
Zitationen: 53
Dimensions
Zitationen: 62
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Energiespeichersysteme (IAM-ESS)
Helmholtz-Institut Ulm (HIU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2015
Sprache Englisch
Identifikator ISSN: 2045-2322
urn:nbn:de:swb:90-527883
KITopen-ID: 1000052788
HGF-Programm 37.01.03 (POF III, LK 01) Batteries in Application
Erschienen in Scientific reports
Verlag Nature Research
Band 5
Seiten Art.Nr.: 18380
Nachgewiesen in Scopus
Web of Science
Dimensions
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page