Graczyk-Zajac, Magdalena ; Mera, Gabriela ; Kaspar, Jan ; Riedel, Ralf (2010)
Electrochemical studies of carbon-rich polymer-derived SiCN ceramics as anode materials for lithium-ion batteries.
In: Journal of the European Ceramic Society, 30 (15)
doi: 10.1016/j.jeurceramsoc.2010.07.010
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The electrochemical behavior of poly(phenylvinylsilylcarbodiimide)-derived SiCN ceramics as anode material for lithium-ion batteries is reported here for the first time. The novel carbon-rich silicon carbonitride (SiCN) ceramics have been synthesized by the thermal treatment of poly(phenylvinylsilylcarbodiimide) under argon atmosphere at five temperatures, namely 1100, 1300, 1500, 1700 and 2000 °C. The SiCN electrodes were prepared without any conducting additives and were tested in electrochemical two electrodes cell using cyclic voltammetry and galvanostatic techniques. The capacity of the carbon-rich SiCN samples was found to be stable upon galvanostatic cycling and reaches almost 300 mAh/g for the sample prepared at 1300 °C with oxygen as the impurity. The dependence of the microstructure, especially of the crystallinity of the segregated carbon phase and of the oxygen impurities on the electrochemical behavior of the SiCN material, was analysed. At all temperatures of thermolysis, the free carbon phase has been identified as “soft carbon”.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2010 |
| Autor(en): | Graczyk-Zajac, Magdalena ; Mera, Gabriela ; Kaspar, Jan ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Electrochemical studies of carbon-rich polymer-derived SiCN ceramics as anode materials for lithium-ion batteries |
| Sprache: | Englisch |
| Publikationsjahr: | November 2010 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 30 |
| (Heft-)Nummer: | 15 |
| DOI: | 10.1016/j.jeurceramsoc.2010.07.010 |
| Kurzbeschreibung (Abstract): | The electrochemical behavior of poly(phenylvinylsilylcarbodiimide)-derived SiCN ceramics as anode material for lithium-ion batteries is reported here for the first time. The novel carbon-rich silicon carbonitride (SiCN) ceramics have been synthesized by the thermal treatment of poly(phenylvinylsilylcarbodiimide) under argon atmosphere at five temperatures, namely 1100, 1300, 1500, 1700 and 2000 °C. The SiCN electrodes were prepared without any conducting additives and were tested in electrochemical two electrodes cell using cyclic voltammetry and galvanostatic techniques. The capacity of the carbon-rich SiCN samples was found to be stable upon galvanostatic cycling and reaches almost 300 mAh/g for the sample prepared at 1300 °C with oxygen as the impurity. The dependence of the microstructure, especially of the crystallinity of the segregated carbon phase and of the oxygen impurities on the electrochemical behavior of the SiCN material, was analysed. At all temperatures of thermolysis, the free carbon phase has been identified as “soft carbon”. |
| Freie Schlagworte: | Li-ion batteries, Anode, SiCN ceramic, Polymer-derived ceramic, Soft carbon |
| 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 11:57 |
| Letzte Änderung: | 18 Dez 2018 12:15 |
| PPN: | |
| Sponsoren: | This study was performed within the collaborative research center SFB 595/A4 funded by the DFG, Bonn, Germany and within the DFG-NSF research initiative “Stability of the NanoDomain Structure of Polymer-Derived SiCN Ceramics at High Temperatures”., We gratefully acknowledge also the financial support by the Fonds der Chemischen Industrie, Frankfurt (Germany). |
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