Three-dimensional reconstruction of a composite cathode for lithium-ion cells

• Verfasst von: Ender, Moses Johannes [VerfasserIn]
• Verfasst von: Carraro, Thomas [VerfasserIn]
• Titel: Three-dimensional reconstruction of a composite cathode for lithium-ion cells
• Verf.angabe: Moses Ender, Jochen Joos, Thomas Carraro, Ellen Ivers-Tiffée
• Jahr des Originals: 2010
• Umfang: 3 S.
• Fussnoten: Available online 13 December 2010 ; Gesehen am 11.03.2019
• Titel Quelle: Enthalten in: Electrochemistry communications
• Jahr Quelle: 2011
• Band/Heft Quelle: 13(2011), 2, S. 166-168
• ISSN Quelle: 1873-1902
• DOI: doi:10.1016/j.elecom.2010.12.004
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1588542017

Abstract

The three-dimensional microstructure of a porous composite cathode for lithium-ion cells has been analyzed by a combined focused ion beam (FIB)/scanning electron microscopy (SEM) approach. The spatial distributions of 1) carbon black as electronic conductor, 2) LiFePO4 as active material and 3) pore volume were reconstructed by appropriate image processing methods. The representative volume element with a size of 5×5×15μm3=375μm3 (24 million volumetric pixels) delivered critical microstructural features as volume fractions, volume-specific surface areas and tortuosity of the three individual phases.