Kolb, Robert ; Fasel, Claudia ; Liebau-Kunzmann, Verena ; Riedel, Ralf (2006)
SiCN/C-ceramic composite as anode material for lithium ion batteries.
In: Journal of the European Ceramic Society, 26 (16)
doi: 10.1016/j.jeurceramsoc.2006.01.009
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The choice of electrode and electrolyte materials to design lithium batteries is limited due to the chemical reactivity of the used materials during the intercalation/deintercalation process. Amorphous silicon carbonitride (SiCN) ceramics are known to be chemically stable in corrosive environments and exhibit disordered carbonaceous regions making it potentially suitable to protect graphite from exfoliation. The material studied in this work was synthesized by mixing commercial graphite powder with the crosslinked polysilazane VL20®. Pyrolysis of the polymer/graphite compound at appropriate temperatures in inert argon atmosphere resulted in the formation of an amorphous SiCN/graphite composite material. First electrochemical investigations of pure SiCN and of the SiCN/C composite are presented here. A reversible capacity of 474 mA hg−1 was achieved with a sample containing 25 wt% VL20® and 75 wt% graphite. The measured capacity exceeds that of the used graphite powder by a factor of 1.3 without any fading over 50 cycles.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2006 |
| Autor(en): | Kolb, Robert ; Fasel, Claudia ; Liebau-Kunzmann, Verena ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | SiCN/C-ceramic composite as anode material for lithium ion batteries |
| Sprache: | Englisch |
| Publikationsjahr: | März 2006 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 26 |
| (Heft-)Nummer: | 16 |
| DOI: | 10.1016/j.jeurceramsoc.2006.01.009 |
| Kurzbeschreibung (Abstract): | The choice of electrode and electrolyte materials to design lithium batteries is limited due to the chemical reactivity of the used materials during the intercalation/deintercalation process. Amorphous silicon carbonitride (SiCN) ceramics are known to be chemically stable in corrosive environments and exhibit disordered carbonaceous regions making it potentially suitable to protect graphite from exfoliation. The material studied in this work was synthesized by mixing commercial graphite powder with the crosslinked polysilazane VL20®. Pyrolysis of the polymer/graphite compound at appropriate temperatures in inert argon atmosphere resulted in the formation of an amorphous SiCN/graphite composite material. First electrochemical investigations of pure SiCN and of the SiCN/C composite are presented here. A reversible capacity of 474 mA hg−1 was achieved with a sample containing 25 wt% VL20® and 75 wt% graphite. The measured capacity exceeds that of the used graphite powder by a factor of 1.3 without any fading over 50 cycles. |
| Freie Schlagworte: | Precursors-organic,Mechanical properties, Glass, Poisson's ratio, SiCN/C, Batteries |
| Zusätzliche Informationen: | SFB 595 A4 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > A - Synthese DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > A - Synthese > Teilprojekt A4: Neue Funktionskeramiken durch Anionensubstitution in oxidischen Systemen |
| Hinterlegungsdatum: | 04 Aug 2011 12:08 |
| Letzte Änderung: | 18 Dez 2018 12:18 |
| PPN: | |
| Sponsoren: | We gratefully acknowledge the financial support by the Deutsche Forschungsgemeinschaft (DFG), Bonn, Germany (SFB 595/A4). |
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