Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems

Silicon-Few Layer Graphene (Si-FLG) composite electrodes are investigated using a scalable electrode manufacturing method. A comprehensive study on the electrochemical performance and the impedance response is measured using electrochemical impedance spectroscopy. The study demonstrates that the inc...

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Autores principales: Huang, Qianye, Loveridge, Melanie J., Genieser, Ronny, Lain, Michael J., Bhagat, Rohit
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5780504/
https://www.ncbi.nlm.nih.gov/pubmed/29362384
http://dx.doi.org/10.1038/s41598-018-19929-3
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author Huang, Qianye
Loveridge, Melanie J.
Genieser, Ronny
Lain, Michael J.
Bhagat, Rohit
author_facet Huang, Qianye
Loveridge, Melanie J.
Genieser, Ronny
Lain, Michael J.
Bhagat, Rohit
author_sort Huang, Qianye
collection PubMed
description Silicon-Few Layer Graphene (Si-FLG) composite electrodes are investigated using a scalable electrode manufacturing method. A comprehensive study on the electrochemical performance and the impedance response is measured using electrochemical impedance spectroscopy. The study demonstrates that the incorporation of few-layer graphene (FLG) results in significant improvement in terms of cyclability, electrode resistance and diffusion properties. Additionally, the diffusion impedance responses that occur during the phase changes in silicon is elucidated through Staircase Potentio Electrochemical Impedance Spectroscopy (SPEIS): a more comprehensive and straightforward approach than previous state-of-charge based diffusion studies.
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spelling pubmed-57805042018-02-06 Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems Huang, Qianye Loveridge, Melanie J. Genieser, Ronny Lain, Michael J. Bhagat, Rohit Sci Rep Article Silicon-Few Layer Graphene (Si-FLG) composite electrodes are investigated using a scalable electrode manufacturing method. A comprehensive study on the electrochemical performance and the impedance response is measured using electrochemical impedance spectroscopy. The study demonstrates that the incorporation of few-layer graphene (FLG) results in significant improvement in terms of cyclability, electrode resistance and diffusion properties. Additionally, the diffusion impedance responses that occur during the phase changes in silicon is elucidated through Staircase Potentio Electrochemical Impedance Spectroscopy (SPEIS): a more comprehensive and straightforward approach than previous state-of-charge based diffusion studies. Nature Publishing Group UK 2018-01-23 /pmc/articles/PMC5780504/ /pubmed/29362384 http://dx.doi.org/10.1038/s41598-018-19929-3 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Huang, Qianye
Loveridge, Melanie J.
Genieser, Ronny
Lain, Michael J.
Bhagat, Rohit
Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems
title Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems
title_full Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems
title_fullStr Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems
title_full_unstemmed Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems
title_short Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems
title_sort electrochemical evaluation and phase-related impedance studies on silicon–few layer graphene (flg) composite electrode systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5780504/
https://www.ncbi.nlm.nih.gov/pubmed/29362384
http://dx.doi.org/10.1038/s41598-018-19929-3
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