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

Abstract 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 tha...

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Autores principales:	Qianye Huang, Melanie J. Loveridge, Ronny Genieser, Michael J. Lain, Rohit Bhagat
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f53b5bca0a96415b82df82fc51b6a0ea
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spelling	oai:doaj.org-article:f53b5bca0a96415b82df82fc51b6a0ea2021-12-02T15:07:58ZElectrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems10.1038/s41598-018-19929-32045-2322https://doaj.org/article/f53b5bca0a96415b82df82fc51b6a0ea2018-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-19929-3https://doaj.org/toc/2045-2322Abstract 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.Qianye HuangMelanie J. LoveridgeRonny GenieserMichael J. LainRohit BhagatNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Qianye Huang Melanie J. Loveridge Ronny Genieser Michael J. Lain Rohit Bhagat Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode Systems
description	Abstract 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.
format	article
author	Qianye Huang Melanie J. Loveridge Ronny Genieser Michael J. Lain Rohit Bhagat
author_facet	Qianye Huang Melanie J. Loveridge Ronny Genieser Michael J. Lain Rohit Bhagat
author_sort	Qianye Huang
title	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_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_sort	electrochemical evaluation and phase-related impedance studies on silicon–few layer graphene (flg) composite electrode systems
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/f53b5bca0a96415b82df82fc51b6a0ea
work_keys_str_mv	AT qianyehuang electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems AT melaniejloveridge electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems AT ronnygenieser electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems AT michaeljlain electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems AT rohitbhagat electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems
_version_	1718388359302217728

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

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