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

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...

Full description

Bibliographic Details
Main Authors: Qianye Huang, Melanie J. Loveridge, Ronny Genieser, Michael J. Lain, Rohit Bhagat
Format: Article
Language:English
Published: Nature Publishing Group 2018-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-018-19929-3
id doaj-f53b5bca0a96415b82df82fc51b6a0ea
record_format Article
spelling doaj-f53b5bca0a96415b82df82fc51b6a0ea2020-12-08T04:06:19ZengNature Publishing GroupScientific Reports2045-23222018-01-01811910.1038/s41598-018-19929-3Electrochemical Evaluation and Phase-related Impedance Studies on Silicon–Few Layer Graphene (FLG) Composite Electrode SystemsQianye Huang0Melanie J. Loveridge1Ronny Genieser2Michael J. Lain3Rohit Bhagat4WMG, The University of WarwickWMG, The University of WarwickWMG, The University of WarwickWMG, The University of WarwickWMG, The University of WarwickAbstract 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.https://doi.org/10.1038/s41598-018-19929-3
collection DOAJ
language English
format Article
sources DOAJ
author Qianye Huang
Melanie J. Loveridge
Ronny Genieser
Michael J. Lain
Rohit Bhagat
spellingShingle 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
Scientific Reports
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 Publishing Group
series Scientific Reports
issn 2045-2322
publishDate 2018-01-01
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.
url https://doi.org/10.1038/s41598-018-19929-3
work_keys_str_mv AT qianyehuang electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems
AT melaniejloveridge electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems
AT ronnygenieser electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems
AT michaeljlain electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems
AT rohitbhagat electrochemicalevaluationandphaserelatedimpedancestudiesonsiliconfewlayergrapheneflgcompositeelectrodesystems
_version_ 1724392326900482048

Similar Items