Performance of Different Water-Based Binder Formulations for Ni-Rich Cathodes Evaluated in LiNi0.8Mn0.1Co0.1O2//Graphite Pouch Cells

Ritu Sahore; Marissa Wood; Alexander Kukay; Zhijia Du; Kelsey M. Livingston; David L. Wood; Jianlin Li

doi:10.1149/1945-7111/ac682d

Performance of Different Water-Based Binder Formulations for Ni-Rich Cathodes Evaluated in LiNi_0.8Mn_0.1Co_0.1O₂//Graphite Pouch Cells

Ritu Sahore, Marissa Wood, Alexander Kukay, Zhijia Du, Kelsey M. Livingston, David L. Wood, Jianlin Li

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

13 Scopus citations

Abstract

Water-based processing for lithium-ion battery electrodes is attractive due to its lower manufacturing cost and smaller environmental impact. However, multiple challenges associated with aqueous cathode processing have hindered commercial adoption. Polymer binders are an important component of the electrode, and thus the choice of binders can alter electrode cycling performance significantly. In this work, four different water-based binder combinations are investigated for Ni-rich LiNi_0.8Mn_0.1Co_0.1O₂ (NMC811)-based cathodes, with a focus on the long-term electrochemical performance in practical-format full pouch cells. No additional pH-modulating additives were added to the aqueous cathode slurries, and no protective coatings were present on the cathode or aluminum current collector. Results are compared with the standard PVDF/NMP-based binder/ solvent combination, used as a baseline. The influence of water-based binder type on slurry rheology and electrode microstructure are also discussed. All cells made by water-processing had worse rate performance compared to the baseline. However, the cell discharge capacity after 1000 U.S. Advanced Battery Consortium (USABC) cycles at C/3 charge/discharge rate was comparable to the baseline for two of the water-based cathode formulations (CMC & JSR, and LiPAA), demonstrating the potential viability of aqueous-processed Ni-rich cathodes at a commercial scale.

Original language	English
Article number	040567
Journal	Journal of the Electrochemical Society
Volume	169
Issue number	4
DOIs	https://doi.org/10.1149/1945-7111/ac682d
State	Published - Apr 1 2022

Funding

This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05–00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ). This research at Oak Ridge National Laboratory, managed by UT Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05–00OR22725, was sponsored by the Office of Energy Efficiency and Renewable Energy (EERE) Vehicle Technologies Office (VTO) (Deputy Director: David Howell) Applied Battery Research subprogram (Program Manager: Peter Faguy). SEM characterization was conducted at the Center for Nanophase Materials Sciences (CNMS), which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy, managed by UT-Battelle, LLC, for the U.S. Notice

Funders	Funder number
U.S. Notice
U.S. Department of Energy	DE-AC05–00OR22725
Office of Energy Efficiency and Renewable Energy
Basic Energy Sciences
Oak Ridge National Laboratory
Vehicle Technologies Office
UT-Battelle

UN SDGs

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

Access to Document

10.1149/1945-7111/ac682d

Cite this

@article{efde95a10ccf4cc1a30b707aae98c988,

title = "Performance of Different Water-Based Binder Formulations for Ni-Rich Cathodes Evaluated in LiNi0.8Mn0.1Co0.1O2//Graphite Pouch Cells",

abstract = "Water-based processing for lithium-ion battery electrodes is attractive due to its lower manufacturing cost and smaller environmental impact. However, multiple challenges associated with aqueous cathode processing have hindered commercial adoption. Polymer binders are an important component of the electrode, and thus the choice of binders can alter electrode cycling performance significantly. In this work, four different water-based binder combinations are investigated for Ni-rich LiNi0.8Mn0.1Co0.1O2 (NMC811)-based cathodes, with a focus on the long-term electrochemical performance in practical-format full pouch cells. No additional pH-modulating additives were added to the aqueous cathode slurries, and no protective coatings were present on the cathode or aluminum current collector. Results are compared with the standard PVDF/NMP-based binder/ solvent combination, used as a baseline. The influence of water-based binder type on slurry rheology and electrode microstructure are also discussed. All cells made by water-processing had worse rate performance compared to the baseline. However, the cell discharge capacity after 1000 U.S. Advanced Battery Consortium (USABC) cycles at C/3 charge/discharge rate was comparable to the baseline for two of the water-based cathode formulations (CMC & JSR, and LiPAA), demonstrating the potential viability of aqueous-processed Ni-rich cathodes at a commercial scale.",

author = "Ritu Sahore and Marissa Wood and Alexander Kukay and Zhijia Du and Livingston, {Kelsey M.} and Wood, {David L.} and Jianlin Li",

note = "Publisher Copyright: {\textcopyright} 2022 The Electrochemical Society",

year = "2022",

month = apr,

day = "1",

doi = "10.1149/1945-7111/ac682d",

language = "English",

volume = "169",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

publisher = "The Electrochemical Society",

number = "4",

}

TY - JOUR

T1 - Performance of Different Water-Based Binder Formulations for Ni-Rich Cathodes Evaluated in LiNi0.8Mn0.1Co0.1O2//Graphite Pouch Cells

AU - Sahore, Ritu

AU - Wood, Marissa

AU - Kukay, Alexander

AU - Du, Zhijia

AU - Livingston, Kelsey M.

AU - Wood, David L.

AU - Li, Jianlin

PY - 2022/4/1

Y1 - 2022/4/1

N2 - Water-based processing for lithium-ion battery electrodes is attractive due to its lower manufacturing cost and smaller environmental impact. However, multiple challenges associated with aqueous cathode processing have hindered commercial adoption. Polymer binders are an important component of the electrode, and thus the choice of binders can alter electrode cycling performance significantly. In this work, four different water-based binder combinations are investigated for Ni-rich LiNi0.8Mn0.1Co0.1O2 (NMC811)-based cathodes, with a focus on the long-term electrochemical performance in practical-format full pouch cells. No additional pH-modulating additives were added to the aqueous cathode slurries, and no protective coatings were present on the cathode or aluminum current collector. Results are compared with the standard PVDF/NMP-based binder/ solvent combination, used as a baseline. The influence of water-based binder type on slurry rheology and electrode microstructure are also discussed. All cells made by water-processing had worse rate performance compared to the baseline. However, the cell discharge capacity after 1000 U.S. Advanced Battery Consortium (USABC) cycles at C/3 charge/discharge rate was comparable to the baseline for two of the water-based cathode formulations (CMC & JSR, and LiPAA), demonstrating the potential viability of aqueous-processed Ni-rich cathodes at a commercial scale.

AB - Water-based processing for lithium-ion battery electrodes is attractive due to its lower manufacturing cost and smaller environmental impact. However, multiple challenges associated with aqueous cathode processing have hindered commercial adoption. Polymer binders are an important component of the electrode, and thus the choice of binders can alter electrode cycling performance significantly. In this work, four different water-based binder combinations are investigated for Ni-rich LiNi0.8Mn0.1Co0.1O2 (NMC811)-based cathodes, with a focus on the long-term electrochemical performance in practical-format full pouch cells. No additional pH-modulating additives were added to the aqueous cathode slurries, and no protective coatings were present on the cathode or aluminum current collector. Results are compared with the standard PVDF/NMP-based binder/ solvent combination, used as a baseline. The influence of water-based binder type on slurry rheology and electrode microstructure are also discussed. All cells made by water-processing had worse rate performance compared to the baseline. However, the cell discharge capacity after 1000 U.S. Advanced Battery Consortium (USABC) cycles at C/3 charge/discharge rate was comparable to the baseline for two of the water-based cathode formulations (CMC & JSR, and LiPAA), demonstrating the potential viability of aqueous-processed Ni-rich cathodes at a commercial scale.

UR - http://www.scopus.com/inward/record.url?scp=85130185693&partnerID=8YFLogxK

U2 - 10.1149/1945-7111/ac682d

DO - 10.1149/1945-7111/ac682d

M3 - Article

AN - SCOPUS:85130185693

SN - 0013-4651

VL - 169

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 4

M1 - 040567

ER -