Relation between Mixing Processes and Properties of Lithium-ion Battery Electrode-slurry

The mixing process of electrode-slurry plays an important role in the electrode performance of lithium-ion batteries (LIBs). The dispersion state of conductive materials, such as acetylene black (AB), in the electrode-slurry directly influences the electronic conductivity in the composite electrodes...

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Autores principales:	Mitsuhiro TAKENO, Seiji KATAKURA, Kohei MIYAZAKI, Takeshi ABE, Tomokazu FUKUTSUKA
Formato:	article
Lenguaje:	EN JA
Publicado:	The Electrochemical Society of Japan 2021
Materias:	lithium-ion batteries electrode-slurry mixing process kneading order Technology T Physical and theoretical chemistry QD450-801
Acceso en línea:	https://doaj.org/article/d198f28a055445fa8758ca1fa59ac31d
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spelling	oai:doaj.org-article:d198f28a055445fa8758ca1fa59ac31d2021-11-05T00:17:27ZRelation between Mixing Processes and Properties of Lithium-ion Battery Electrode-slurry2186-245110.5796/electrochemistry.21-00076https://doaj.org/article/d198f28a055445fa8758ca1fa59ac31d2021-11-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/electrochemistry/89/6/89_21-00076/_html/-char/enhttps://doaj.org/toc/2186-2451The mixing process of electrode-slurry plays an important role in the electrode performance of lithium-ion batteries (LIBs). The dispersion state of conductive materials, such as acetylene black (AB), in the electrode-slurry directly influences the electronic conductivity in the composite electrodes. In this study, the relation between the mixing process of electrode-slurry and the internal resistance of the composite electrode was investigated in combination with the characterization of the electrode-slurries by the rheological analysis and the alternating current (AC) impedance spectroscopy. Some of the electrode-slurries showed higher value and gentler slope of the dynamic storage modulus in the low-angular-frequency region and higher thixotropic index than the others depending on the way of the mixing process and the AB content, agreeing with the low electronic volume resistivities of the corresponding composite electrodes and the electrode-slurries, which indicates the AB network growth. The results suggested that the low-viscosity state when AB and active electrode material are mixed contributes to the dispersive AB network.Mitsuhiro TAKENOSeiji KATAKURAKohei MIYAZAKITakeshi ABETomokazu FUKUTSUKAThe Electrochemical Society of Japanarticlelithium-ion batterieselectrode-slurrymixing processkneading orderTechnologyTPhysical and theoretical chemistryQD450-801ENJAElectrochemistry, Vol 89, Iss 6, Pp 585-589 (2021)
institution	DOAJ
collection	DOAJ
language	EN JA
topic	lithium-ion batteries electrode-slurry mixing process kneading order Technology T Physical and theoretical chemistry QD450-801
spellingShingle	lithium-ion batteries electrode-slurry mixing process kneading order Technology T Physical and theoretical chemistry QD450-801 Mitsuhiro TAKENO Seiji KATAKURA Kohei MIYAZAKI Takeshi ABE Tomokazu FUKUTSUKA Relation between Mixing Processes and Properties of Lithium-ion Battery Electrode-slurry
description	The mixing process of electrode-slurry plays an important role in the electrode performance of lithium-ion batteries (LIBs). The dispersion state of conductive materials, such as acetylene black (AB), in the electrode-slurry directly influences the electronic conductivity in the composite electrodes. In this study, the relation between the mixing process of electrode-slurry and the internal resistance of the composite electrode was investigated in combination with the characterization of the electrode-slurries by the rheological analysis and the alternating current (AC) impedance spectroscopy. Some of the electrode-slurries showed higher value and gentler slope of the dynamic storage modulus in the low-angular-frequency region and higher thixotropic index than the others depending on the way of the mixing process and the AB content, agreeing with the low electronic volume resistivities of the corresponding composite electrodes and the electrode-slurries, which indicates the AB network growth. The results suggested that the low-viscosity state when AB and active electrode material are mixed contributes to the dispersive AB network.
format	article
author	Mitsuhiro TAKENO Seiji KATAKURA Kohei MIYAZAKI Takeshi ABE Tomokazu FUKUTSUKA
author_facet	Mitsuhiro TAKENO Seiji KATAKURA Kohei MIYAZAKI Takeshi ABE Tomokazu FUKUTSUKA
author_sort	Mitsuhiro TAKENO
title	Relation between Mixing Processes and Properties of Lithium-ion Battery Electrode-slurry
title_short	Relation between Mixing Processes and Properties of Lithium-ion Battery Electrode-slurry
title_full	Relation between Mixing Processes and Properties of Lithium-ion Battery Electrode-slurry
title_fullStr	Relation between Mixing Processes and Properties of Lithium-ion Battery Electrode-slurry
title_full_unstemmed	Relation between Mixing Processes and Properties of Lithium-ion Battery Electrode-slurry
title_sort	relation between mixing processes and properties of lithium-ion battery electrode-slurry
publisher	The Electrochemical Society of Japan
publishDate	2021
url	https://doaj.org/article/d198f28a055445fa8758ca1fa59ac31d
work_keys_str_mv	AT mitsuhirotakeno relationbetweenmixingprocessesandpropertiesoflithiumionbatteryelectrodeslurry AT seijikatakura relationbetweenmixingprocessesandpropertiesoflithiumionbatteryelectrodeslurry AT koheimiyazaki relationbetweenmixingprocessesandpropertiesoflithiumionbatteryelectrodeslurry AT takeshiabe relationbetweenmixingprocessesandpropertiesoflithiumionbatteryelectrodeslurry AT tomokazufukutsuka relationbetweenmixingprocessesandpropertiesoflithiumionbatteryelectrodeslurry
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Relation between Mixing Processes and Properties of Lithium-ion Battery Electrode-slurry

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