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The influence of the pyrolysis temperature on the electrochemical behavior of carbon-rich SiCN polymer-derived ceramics as anode materials in lithium-ion batteries

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.
In: Journal of Power Sources, Elsevier Science Publishing, pp. 409-415, 282, 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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