Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteries

Graphite is the material most used as an electrode in commercial lithium-ion batteries. On the other hand, it is a material with low energy capacity, and it is considered a raw critical material given its large volume of use. In the current energy context, we must promote the search for alternative...

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Authors: Barrio, Rocío, González, Nieves, Portugal, Álvaro, Morant Zacarés, Carmen, Gandía, José Javier
Format: article
Publication Date:2022
Country:España
Institution:Universidad Autónoma de Madrid
Repository:Biblos-e Archivo. Repositorio Institucional de la UAM
Language:English
OAI Identifier:oai:repositorio.uam.es:10486/707366
Online Access:http://hdl.handle.net/10486/707366
https://dx.doi.org/10.3390/nano12244400
Access Level:Open access
Keyword:Lithium-ion Batteries
Electrode
Silicon Monoxide
Física
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spelling Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteriesBarrio, RocíoGonzález, NievesPortugal, ÁlvaroMorant Zacarés, CarmenGandía, José JavierLithium-ion BatteriesElectrodeSilicon MonoxideFísicaGraphite is the material most used as an electrode in commercial lithium-ion batteries. On the other hand, it is a material with low energy capacity, and it is considered a raw critical material given its large volume of use. In the current energy context, we must promote the search for alternative materials based on elements that are abundant, sustainable and that have better performance for energy storage. We propose thin materials based on silicon, which has a storage capacity eleven times higher than graphite. Nevertheless, due to the high-volume expansion during lithiation, it tends to crack, limiting the life of the batteries. To solve this problem, hydrogenated amorphous silicon has been researched, in the form of thin film and nanostructures, since, due to its amorphous structure, porosity and high specific surface, it could better absorb changes in volume. These thin films were grown by plasma-enhanced chemical vapor deposition, and then the nanowires were obtained by chemical etching. The compositional variations of films deposited at different temperatures and the incorporation of dopants markedly influence the stability and longevity of batteries. With these optimized electrodes, we achieved batteries with an initial capacity of 3800 mAhg−1 and 82% capacity retention after 50 cyclesThis research has been funded by the Spanish of Ministry of Economy and Competitiveness under projects SCALED (PID2019-109215RB-C42/ https://scaled-project.com/, accessed on June 2020), NanoCat-Com (PID2021-124667OB-I00, accessed on September 2022) and by the European Project STORIES (LC-GD-9-1-2020-European Research Infrastructures capacities and services to address European Green Deal challenges /https://www.eera-energystorage.eu/stories.html, accessed on November 2021MDPIDepartamento de Física AplicadaFacultad de Ciencias20222022-12-01research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/707366https://dx.doi.org/10.3390/nano12244400reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7073662026-06-23T12:46:27Z
dc.title.none.fl_str_mv Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteries
title Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteries
spellingShingle Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteries
Barrio, Rocío
Lithium-ion Batteries
Electrode
Silicon Monoxide
Física
title_short Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteries
title_full Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteries
title_fullStr Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteries
title_full_unstemmed Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteries
title_sort Hydrogenated amorphous silicon-based nanomaterials as alternative electrodes to graphite for lithium-ion batteries
dc.creator.none.fl_str_mv Barrio, Rocío
González, Nieves
Portugal, Álvaro
Morant Zacarés, Carmen
Gandía, José Javier
author Barrio, Rocío
author_facet Barrio, Rocío
González, Nieves
Portugal, Álvaro
Morant Zacarés, Carmen
Gandía, José Javier
author_role author
author2 González, Nieves
Portugal, Álvaro
Morant Zacarés, Carmen
Gandía, José Javier
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Aplicada
Facultad de Ciencias
dc.subject.none.fl_str_mv Lithium-ion Batteries
Electrode
Silicon Monoxide
Física
topic Lithium-ion Batteries
Electrode
Silicon Monoxide
Física
description Graphite is the material most used as an electrode in commercial lithium-ion batteries. On the other hand, it is a material with low energy capacity, and it is considered a raw critical material given its large volume of use. In the current energy context, we must promote the search for alternative materials based on elements that are abundant, sustainable and that have better performance for energy storage. We propose thin materials based on silicon, which has a storage capacity eleven times higher than graphite. Nevertheless, due to the high-volume expansion during lithiation, it tends to crack, limiting the life of the batteries. To solve this problem, hydrogenated amorphous silicon has been researched, in the form of thin film and nanostructures, since, due to its amorphous structure, porosity and high specific surface, it could better absorb changes in volume. These thin films were grown by plasma-enhanced chemical vapor deposition, and then the nanowires were obtained by chemical etching. The compositional variations of films deposited at different temperatures and the incorporation of dopants markedly influence the stability and longevity of batteries. With these optimized electrodes, we achieved batteries with an initial capacity of 3800 mAhg−1 and 82% capacity retention after 50 cycles
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-12-01
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/707366
https://dx.doi.org/10.3390/nano12244400
url http://hdl.handle.net/10486/707366
https://dx.doi.org/10.3390/nano12244400
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
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