Reinold, Lukas Mirko and Yamada, Yuto and Graczyk-Zajac, Magdalena and Munakata, Hirokazu and Kanamura, Kiyoshi and Riedel, Ralf (2015):
The influence of the pyrolysis temperature on the electrochemical behavior of carbon-rich SiCN polymer-derived ceramics as anode materials in lithium-ion batteries.
282, In: Journal of Power Sources, Elsevier Science Publishing, pp. 409-415, ISSN 03787753, [Online-Edition: http://dx.doi.org/10.1016/j.jpowsour.2015.02.074],
[Article]
Abstract
Within this study we report on the impact of the pyrolysis temperature on the structural and electrochemical properties of the poly(phenylvinylsilylcarbodiimide) derived silicon carbonitride (SiCN) ceramic. Materials pyrolysed at 800 °C and 1300 °C, SiCN 800 and SiCN 1300, are found amorphous. Raman spectroscopy measurements indicate the increase in ordering of the free carbon phase with increasing pyrolysis temperature which leads to lower capacity recovered by SiCN 1300. Significant hysteresis is found for materials pyrolysed at 800 °C during electrochemical lithium insertion/extraction. This feature is attributed to much higher hydrogen content in SiCN 800 sample. An aging of SiCN 800 reflected by a change of elemental composition upon contact to air and a strong film formation are attenuated at a higher pyrolysis temperature. Single particle microelectrode investigation on SiCN 800 and SiCN 1300 clarify different electrochemical behavior of the materials. Much lower charge transfer resistance of SiCN 1300 in comparison to SiCN 800 explains better high currents electrochemical performance. Lithium ions diffusion coefficient Dmin ranges from 3.2 10−9 cm2s−1 to 6.4 10–11 cm2s−1 and is independent on the potential.
| Item Type: | Article |
|---|---|
| Erschienen: | 2015 |
| Creators: | Reinold, Lukas Mirko and Yamada, Yuto and Graczyk-Zajac, Magdalena and Munakata, Hirokazu and Kanamura, Kiyoshi and Riedel, Ralf |
| Title: | The influence of the pyrolysis temperature on the electrochemical behavior of carbon-rich SiCN polymer-derived ceramics as anode materials in lithium-ion batteries |
| Language: | English |
| Abstract: | Within this study we report on the impact of the pyrolysis temperature on the structural and electrochemical properties of the poly(phenylvinylsilylcarbodiimide) derived silicon carbonitride (SiCN) ceramic. Materials pyrolysed at 800 °C and 1300 °C, SiCN 800 and SiCN 1300, are found amorphous. Raman spectroscopy measurements indicate the increase in ordering of the free carbon phase with increasing pyrolysis temperature which leads to lower capacity recovered by SiCN 1300. Significant hysteresis is found for materials pyrolysed at 800 °C during electrochemical lithium insertion/extraction. This feature is attributed to much higher hydrogen content in SiCN 800 sample. An aging of SiCN 800 reflected by a change of elemental composition upon contact to air and a strong film formation are attenuated at a higher pyrolysis temperature. Single particle microelectrode investigation on SiCN 800 and SiCN 1300 clarify different electrochemical behavior of the materials. Much lower charge transfer resistance of SiCN 1300 in comparison to SiCN 800 explains better high currents electrochemical performance. Lithium ions diffusion coefficient Dmin ranges from 3.2 10−9 cm2s−1 to 6.4 10–11 cm2s−1 and is independent on the potential. |
| Journal or Publication Title: | Journal of Power Sources |
| Volume: | 282 |
| Publisher: | Elsevier Science Publishing |
| Uncontrolled Keywords: | Lithium-ion battery, Single particle measurements, Silicon carbonitride, Polymer-derived ceramic |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis > Subproject A4: Novel functional ceramics using anionic substitution in oxidic systems 11 Department of Materials and Earth Sciences > Material Science DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue 11 Department of Materials and Earth Sciences Zentrale Einrichtungen DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres DFG-Collaborative Research Centres (incl. Transregio) |
| Date Deposited: | 26 Feb 2015 09:16 |
| Official URL: | http://dx.doi.org/10.1016/j.jpowsour.2015.02.074 |
| Additional Information: | SFB 595 A4 |
| Identification Number: | doi:10.1016/j.jpowsour.2015.02.074 |
| Funders: | We gratefully acknowledge the financial support of the German Research Foundation (DFG) within the projects SFB 595/A4 and SPP1473/JP8 (GR4440/1-2). |
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