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Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li- and Na-ion batteries

Hard carbons are promising candidates for high-capacity anode materials in alkali metal-ion batteries, such as lithium- and sodium-ion batteries. High reversible capacities are often coming along with high irreversible capacity losses during the first cycles, limiting commercial viability. The trade...

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Autores principales: Matsukawa, Yuko, Linsenmann, Fabian, Plass, Maximilian Arthur, Hasegawa, George, Hayashi, Katsuro, Fellinger, Tim-Patrick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7431754/
https://www.ncbi.nlm.nih.gov/pubmed/32832317
http://dx.doi.org/10.3762/bjnano.11.106
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author Matsukawa, Yuko
Linsenmann, Fabian
Plass, Maximilian Arthur
Hasegawa, George
Hayashi, Katsuro
Fellinger, Tim-Patrick
author_facet Matsukawa, Yuko
Linsenmann, Fabian
Plass, Maximilian Arthur
Hasegawa, George
Hayashi, Katsuro
Fellinger, Tim-Patrick
author_sort Matsukawa, Yuko
collection PubMed
description Hard carbons are promising candidates for high-capacity anode materials in alkali metal-ion batteries, such as lithium- and sodium-ion batteries. High reversible capacities are often coming along with high irreversible capacity losses during the first cycles, limiting commercial viability. The trade-off to maximize the reversible capacities and simultaneously minimizing irreversible losses can be achieved by tuning the exact architecture of the subnanometric pore system inside the carbon particles. Since the characterization of small pores is nontrivial, we herein employ Kr, N(2) and CO(2) gas sorption porosimetry, as well as H(2)O vapor sorption porosimetry, to investigate eight hard carbons. Electrochemical lithium as well as sodium storage tests are compared to the obtained apparent surface areas and pore volumes. H(2)O, and more importantly CO(2), sorption porosimetry turned out to be the preferred methods to evaluate the likelihood for excessive irreversible capacities. The methods are also useful to select the relatively most promising active materials within chemically similar materials. A quantitative relation of porosity descriptors to the obtained capacities remains a scientific challenge.
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spelling pubmed-74317542020-08-21 Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li- and Na-ion batteries Matsukawa, Yuko Linsenmann, Fabian Plass, Maximilian Arthur Hasegawa, George Hayashi, Katsuro Fellinger, Tim-Patrick Beilstein J Nanotechnol Full Research Paper Hard carbons are promising candidates for high-capacity anode materials in alkali metal-ion batteries, such as lithium- and sodium-ion batteries. High reversible capacities are often coming along with high irreversible capacity losses during the first cycles, limiting commercial viability. The trade-off to maximize the reversible capacities and simultaneously minimizing irreversible losses can be achieved by tuning the exact architecture of the subnanometric pore system inside the carbon particles. Since the characterization of small pores is nontrivial, we herein employ Kr, N(2) and CO(2) gas sorption porosimetry, as well as H(2)O vapor sorption porosimetry, to investigate eight hard carbons. Electrochemical lithium as well as sodium storage tests are compared to the obtained apparent surface areas and pore volumes. H(2)O, and more importantly CO(2), sorption porosimetry turned out to be the preferred methods to evaluate the likelihood for excessive irreversible capacities. The methods are also useful to select the relatively most promising active materials within chemically similar materials. A quantitative relation of porosity descriptors to the obtained capacities remains a scientific challenge. Beilstein-Institut 2020-08-14 /pmc/articles/PMC7431754/ /pubmed/32832317 http://dx.doi.org/10.3762/bjnano.11.106 Text en Copyright © 2020, Matsukawa et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the authors and source are credited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms)
spellingShingle Full Research Paper
Matsukawa, Yuko
Linsenmann, Fabian
Plass, Maximilian Arthur
Hasegawa, George
Hayashi, Katsuro
Fellinger, Tim-Patrick
Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li- and Na-ion batteries
title Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li- and Na-ion batteries
title_full Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li- and Na-ion batteries
title_fullStr Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li- and Na-ion batteries
title_full_unstemmed Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li- and Na-ion batteries
title_short Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li- and Na-ion batteries
title_sort gas sorption porosimetry for the evaluation of hard carbons as anodes for li- and na-ion batteries
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7431754/
https://www.ncbi.nlm.nih.gov/pubmed/32832317
http://dx.doi.org/10.3762/bjnano.11.106
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