Correlation among porosity, mechanical properties, morphology, electronic conductivity and electrochemical kinetics of dry-processed electrodes

Runming Tao; Bryan Steinhoff; Kübra Uzun; Ben La Riviere; Kahla Sardo; Brendan Skelly; Ryan Hill; Yang Tse Cheng; Jianlin Li

doi:10.1016/j.jpowsour.2023.233481

Correlation among porosity, mechanical properties, morphology, electronic conductivity and electrochemical kinetics of dry-processed electrodes

Runming Tao, Bryan Steinhoff, Kübra Uzun, Ben La Riviere, Kahla Sardo, Brendan Skelly, Ryan Hill, Yang Tse Cheng, Jianlin Li

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Dry processing (DP) has received great interest recently, which poses many advantages over the conventional slurry-based processing. This work investigates the effect of compression on electrode mechanical properties, morphology, electronic conductivity, and electrochemical kinetics. Similar to the slurry-based electrodes, LiNi_0.8Mn_0.1Co_0.1O₂ (NMC) cathodes with intermediate porosity (i.e., 32%) demonstrate lowest charge transfer resistance, highest electronic conductivity and best rate performance. Fracture of NMC secondary particles is observed in the dry processed NMC cathodes. Reducing electrode porosity results in more fracture in the NMC secondary particles.

Original language	English
Article number	233481
Journal	Journal of Power Sources
Volume	581
DOIs	https://doi.org/10.1016/j.jpowsour.2023.233481
State	Published - Oct 15 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2023.233481

Cite this

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title = "Correlation among porosity, mechanical properties, morphology, electronic conductivity and electrochemical kinetics of dry-processed electrodes",

abstract = "Dry processing (DP) has received great interest recently, which poses many advantages over the conventional slurry-based processing. This work investigates the effect of compression on electrode mechanical properties, morphology, electronic conductivity, and electrochemical kinetics. Similar to the slurry-based electrodes, LiNi0.8Mn0.1Co0.1O2 (NMC) cathodes with intermediate porosity (i.e., 32%) demonstrate lowest charge transfer resistance, highest electronic conductivity and best rate performance. Fracture of NMC secondary particles is observed in the dry processed NMC cathodes. Reducing electrode porosity results in more fracture in the NMC secondary particles.",

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AU - Tao, Runming

AU - Steinhoff, Bryan

AU - Uzun, Kübra

AU - La Riviere, Ben

AU - Sardo, Kahla

AU - Skelly, Brendan

AU - Hill, Ryan

AU - Cheng, Yang Tse

AU - Li, Jianlin

PY - 2023/10/15

Y1 - 2023/10/15

N2 - Dry processing (DP) has received great interest recently, which poses many advantages over the conventional slurry-based processing. This work investigates the effect of compression on electrode mechanical properties, morphology, electronic conductivity, and electrochemical kinetics. Similar to the slurry-based electrodes, LiNi0.8Mn0.1Co0.1O2 (NMC) cathodes with intermediate porosity (i.e., 32%) demonstrate lowest charge transfer resistance, highest electronic conductivity and best rate performance. Fracture of NMC secondary particles is observed in the dry processed NMC cathodes. Reducing electrode porosity results in more fracture in the NMC secondary particles.

AB - Dry processing (DP) has received great interest recently, which poses many advantages over the conventional slurry-based processing. This work investigates the effect of compression on electrode mechanical properties, morphology, electronic conductivity, and electrochemical kinetics. Similar to the slurry-based electrodes, LiNi0.8Mn0.1Co0.1O2 (NMC) cathodes with intermediate porosity (i.e., 32%) demonstrate lowest charge transfer resistance, highest electronic conductivity and best rate performance. Fracture of NMC secondary particles is observed in the dry processed NMC cathodes. Reducing electrode porosity results in more fracture in the NMC secondary particles.

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DO - 10.1016/j.jpowsour.2023.233481

M3 - Article

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JO - Journal of Power Sources

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ER -

Correlation among porosity, mechanical properties, morphology, electronic conductivity and electrochemical kinetics of dry-processed electrodes

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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