Chemical stability and long-term cell performance of low-cobalt, Ni-Rich cathodes prepared by aqueous processing for high-energy Li-Ion batteries

Marissa Wood; Jianlin Li; Rose E. Ruther; Zhijia Du; Ethan C. Self; Harry M. Meyer; Claus Daniel; Ilias Belharouak; David L. Wood

doi:10.1016/j.ensm.2019.08.020

Chemical stability and long-term cell performance of low-cobalt, Ni-Rich cathodes prepared by aqueous processing for high-energy Li-Ion batteries

Marissa Wood, Jianlin Li, Rose E. Ruther, Zhijia Du, Ethan C. Self, Harry M. Meyer, Claus Daniel, Ilias Belharouak, David L. Wood

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

181 Scopus citations

Abstract

Cobalt content in Li-ion battery cathodes has become a top concern due to its price volatility and limited source availability. Low-cobalt, Ni-rich active materials are promising candidates for next-generation cathodes due to their high capacities, and water-based processing of these materials can further reduce both cost and environmental impact. We systematically evaluated the water compatibility of four different LiNi_xMn_1-x-yCo_yO₂ (NMC) powders with increasing nickel contents. Comprehensive characterization verified there is no major change to their bulk structures, and only slight surface modifications related to the removal of contaminant species. For the first time, we demonstrate that LiNi_0.8Mn_0.1Co_0.1O₂ (NMC 811) cathodes can be formulated in water and cycled 1000 times in full pouch cells with excellent capacity retention (~70% compared to ~76% for NMP-processed cells). When implemented in future battery production lines, aqueous processing of Ni-rich NMC will simultaneously enable cost reductions and higher cell energy densities.

Original language	English
Pages (from-to)	188-197
Number of pages	10
Journal	Energy Storage Materials
Volume	24
DOIs	https://doi.org/10.1016/j.ensm.2019.08.020
State	Published - Jan 2020

Funding

This research at Oak Ridge National Laboratory, managed by UT Battelle, LLC, for the U.S. Department of Energy (DOE) 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). The funding source had no involvement in conducting the research or preparing the article. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy 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). Lawrence Livermore National Laboratory is operated by Lawrence Livermore National Security, LLC, for the U.S. Department of Energy, National Nuclear Security Administration under Contract DE-AC52-07NA27344.This research at Oak Ridge National Laboratory, managed by UT Battelle, LLC, for the U.S. Department of Energy (DOE) 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). The funding source had no involvement in conducting the research or preparing the article.

Funders	Funder number
DOE Public Access Plan
United States Government
U.S. Department of Energy	DE-AC05-00OR22725
Battelle
Office of Energy Efficiency and Renewable Energy
National Nuclear Security Administration	DE-AC52-07NA27344
Oak Ridge National Laboratory
Vehicle Technologies Office
UT-Battelle

Keywords

Aqueous electrode processing
Green chemistry
Lithium-ion battery
Low-cobalt cathode
Ni-rich NMC
Pouch cells

UN SDGs

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

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10.1016/j.ensm.2019.08.020

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@article{54943ea5953746f69ed15e8e0b94caba,

title = "Chemical stability and long-term cell performance of low-cobalt, Ni-Rich cathodes prepared by aqueous processing for high-energy Li-Ion batteries",

abstract = "Cobalt content in Li-ion battery cathodes has become a top concern due to its price volatility and limited source availability. Low-cobalt, Ni-rich active materials are promising candidates for next-generation cathodes due to their high capacities, and water-based processing of these materials can further reduce both cost and environmental impact. We systematically evaluated the water compatibility of four different LiNixMn1-x-yCoyO2 (NMC) powders with increasing nickel contents. Comprehensive characterization verified there is no major change to their bulk structures, and only slight surface modifications related to the removal of contaminant species. For the first time, we demonstrate that LiNi0.8Mn0.1Co0.1O2 (NMC 811) cathodes can be formulated in water and cycled 1000 times in full pouch cells with excellent capacity retention (~70% compared to ~76% for NMP-processed cells). When implemented in future battery production lines, aqueous processing of Ni-rich NMC will simultaneously enable cost reductions and higher cell energy densities.",

keywords = "Aqueous electrode processing, Green chemistry, Lithium-ion battery, Low-cobalt cathode, Ni-rich NMC, Pouch cells",

author = "Marissa Wood and Jianlin Li and Ruther, {Rose E.} and Zhijia Du and Self, {Ethan C.} and Meyer, {Harry M.} and Claus Daniel and Ilias Belharouak and Wood, {David L.}",

note = "Publisher Copyright: {\textcopyright} 2019 The Authors",

year = "2020",

month = jan,

doi = "10.1016/j.ensm.2019.08.020",

language = "English",

volume = "24",

pages = "188--197",

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AU - Wood, Marissa

AU - Li, Jianlin

AU - Ruther, Rose E.

AU - Du, Zhijia

AU - Self, Ethan C.

AU - Meyer, Harry M.

AU - Daniel, Claus

AU - Belharouak, Ilias

AU - Wood, David L.

PY - 2020/1

Y1 - 2020/1

N2 - Cobalt content in Li-ion battery cathodes has become a top concern due to its price volatility and limited source availability. Low-cobalt, Ni-rich active materials are promising candidates for next-generation cathodes due to their high capacities, and water-based processing of these materials can further reduce both cost and environmental impact. We systematically evaluated the water compatibility of four different LiNixMn1-x-yCoyO2 (NMC) powders with increasing nickel contents. Comprehensive characterization verified there is no major change to their bulk structures, and only slight surface modifications related to the removal of contaminant species. For the first time, we demonstrate that LiNi0.8Mn0.1Co0.1O2 (NMC 811) cathodes can be formulated in water and cycled 1000 times in full pouch cells with excellent capacity retention (~70% compared to ~76% for NMP-processed cells). When implemented in future battery production lines, aqueous processing of Ni-rich NMC will simultaneously enable cost reductions and higher cell energy densities.

AB - Cobalt content in Li-ion battery cathodes has become a top concern due to its price volatility and limited source availability. Low-cobalt, Ni-rich active materials are promising candidates for next-generation cathodes due to their high capacities, and water-based processing of these materials can further reduce both cost and environmental impact. We systematically evaluated the water compatibility of four different LiNixMn1-x-yCoyO2 (NMC) powders with increasing nickel contents. Comprehensive characterization verified there is no major change to their bulk structures, and only slight surface modifications related to the removal of contaminant species. For the first time, we demonstrate that LiNi0.8Mn0.1Co0.1O2 (NMC 811) cathodes can be formulated in water and cycled 1000 times in full pouch cells with excellent capacity retention (~70% compared to ~76% for NMP-processed cells). When implemented in future battery production lines, aqueous processing of Ni-rich NMC will simultaneously enable cost reductions and higher cell energy densities.

KW - Aqueous electrode processing

KW - Green chemistry

KW - Lithium-ion battery

KW - Low-cobalt cathode

KW - Ni-rich NMC

KW - Pouch cells

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ER -

Chemical stability and long-term cell performance of low-cobalt, Ni-Rich cathodes prepared by aqueous processing for high-energy Li-Ion batteries

Abstract

Funding

Keywords

UN SDGs

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