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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2018-01-01
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Online Access: | https://doi.org/10.1038/s41598-018-19929-3 |
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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 |
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