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Greener, Safer and Better Performing Aqueous Binder for Positive Electrode Manufacturing of Sodium Ion Batteries

Ruochen Xu, Venkat Pamidi Orcid Logo, Yushu Tang, Stefan Fuchs, Helge S. Stein, Bosubabu Dasari, Zhirong Zhao‐Karger, Santosh Kumar Behara, Yang Hu, Shivam Trivedi, Anji Munnangi Orcid Logo, Prabeer Barpanda, Maximilian Fichtner Orcid Logo

ChemSusChem

Swansea University Authors: Santosh Kumar Behara, Anji Munnangi Orcid Logo

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DOI (Published version): 10.1002/cssc.202301154

Abstract

P2-type cobalt-free MnNi-based layered oxides are promising cathode materials for sodium-ion batteries (SIBs) due to their high reversible capacity and well chemical stability. However, the phase transformations during repeated (dis)charge steps lead to rapid capacity decay and deteriorated Na+ diff...

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Published in: ChemSusChem
ISSN: 1864-5631 1864-564X
Published: Wiley 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa65631
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However, the phase transformations during repeated (dis)charge steps lead to rapid capacity decay and deteriorated Na+ diffusion kinetics. Moreover, the electrode manufacturing based on polyvinylidene difluoride (PVDF) binder system has been reported with severely defluorination issue as well as the energy intensive and expensive process due to the use of toxic and volatile N-methyl-2-pyrrolidone (NMP) solvent. It calls for designing a sustainable, better performing, and cost-effective binder for positive electrode manufacturing. In this work, we investigated inorganic sodium metasilicate (SMS) as a viable binder in conjunction with P2-Na0.67Mn0.55Ni0.25Fe0.1Ti0.1O2 (NMNFT) cathode material for SIBs. The NMNFT-SMS electrode delivered a superior electrochemical performance compared to carboxy methylcellulose (CMC) and PVDF based electrodes with a reversible capacity of ~161 mAh/g and retaining ~83 % after 200 cycles. Lower cell impedance and faster Na+ diffusion was also observed in this binder system. Meanwhile, with the assistance of TEM technique, SMS is suggested to form a uniform and stable nanoscale layer over the cathode particle surface, protecting the particle from exfoliation/cracking due to electrolyte attack. It effectively maintained the electrode connectivity and suppressed early phase transitions during cycling as confirmed by operando XRD study. 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Grant Number: 390874152 (POLiS Cluster of Excellence, EXC 2154) Alexander von Humboldt Foundation (Bonn, Germany) European Union's Horizon 2020 research and innovation program. Grant Number: 957189 European Union's Horizon 2020 research and innovation program. 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spelling v2 65631 2024-02-13 Greener, Safer and Better Performing Aqueous Binder for Positive Electrode Manufacturing of Sodium Ion Batteries 1e3ac1c92bb33b8dbeeeaaaa9f3644de Santosh Kumar Behara Santosh Kumar Behara true false 3ed0b4f2ff4fb9e87c7a73e7a3c39da7 0000-0001-9101-0252 Anji Munnangi Anji Munnangi true false 2024-02-13 MTLS P2-type cobalt-free MnNi-based layered oxides are promising cathode materials for sodium-ion batteries (SIBs) due to their high reversible capacity and well chemical stability. However, the phase transformations during repeated (dis)charge steps lead to rapid capacity decay and deteriorated Na+ diffusion kinetics. Moreover, the electrode manufacturing based on polyvinylidene difluoride (PVDF) binder system has been reported with severely defluorination issue as well as the energy intensive and expensive process due to the use of toxic and volatile N-methyl-2-pyrrolidone (NMP) solvent. It calls for designing a sustainable, better performing, and cost-effective binder for positive electrode manufacturing. In this work, we investigated inorganic sodium metasilicate (SMS) as a viable binder in conjunction with P2-Na0.67Mn0.55Ni0.25Fe0.1Ti0.1O2 (NMNFT) cathode material for SIBs. The NMNFT-SMS electrode delivered a superior electrochemical performance compared to carboxy methylcellulose (CMC) and PVDF based electrodes with a reversible capacity of ~161 mAh/g and retaining ~83 % after 200 cycles. Lower cell impedance and faster Na+ diffusion was also observed in this binder system. Meanwhile, with the assistance of TEM technique, SMS is suggested to form a uniform and stable nanoscale layer over the cathode particle surface, protecting the particle from exfoliation/cracking due to electrolyte attack. It effectively maintained the electrode connectivity and suppressed early phase transitions during cycling as confirmed by operando XRD study. With these findings, SMS binder can be proposed as a powerful multifunctional binder to enable positive electrode manufacturing of SIBs and to overall reduce battery manufacturing costs. Journal Article ChemSusChem 0 Wiley 1864-5631 1864-564X Sodium-ion batteries, layered oxide cathodes, aqueous binder, sodium metasilicate, in-situ coating, thermal stability 18 1 2024 2024-01-18 10.1002/cssc.202301154 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University Another institution paid the OA fee German Research Foundation (DFG). Grant Number: 390874152 (POLiS Cluster of Excellence, EXC 2154) Alexander von Humboldt Foundation (Bonn, Germany) European Union's Horizon 2020 research and innovation program. Grant Number: 957189 European Union's Horizon 2020 research and innovation program. Grant Number: 957213 2024-04-04T11:54:15.7056807 2024-02-13T10:02:35.0485578 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Ruochen Xu 1 Venkat Pamidi 0000-0002-9400-5456 2 Yushu Tang 3 Stefan Fuchs 4 Helge S. Stein 5 Bosubabu Dasari 6 Zhirong Zhao‐Karger 7 Santosh Kumar Behara 8 Yang Hu 9 Shivam Trivedi 10 Anji Munnangi 0000-0001-9101-0252 11 Prabeer Barpanda 12 Maximilian Fichtner 0000-0002-7127-1823 13 65631__29539__964f4a4153b6465583f4583a5ee8d946.pdf 65631.pdf 2024-02-13T10:07:48.3635047 Output 1868369 application/pdf Version of Record true false
title Greener, Safer and Better Performing Aqueous Binder for Positive Electrode Manufacturing of Sodium Ion Batteries
spellingShingle Greener, Safer and Better Performing Aqueous Binder for Positive Electrode Manufacturing of Sodium Ion Batteries
Santosh Kumar Behara
Anji Munnangi
title_short Greener, Safer and Better Performing Aqueous Binder for Positive Electrode Manufacturing of Sodium Ion Batteries
title_full Greener, Safer and Better Performing Aqueous Binder for Positive Electrode Manufacturing of Sodium Ion Batteries
title_fullStr Greener, Safer and Better Performing Aqueous Binder for Positive Electrode Manufacturing of Sodium Ion Batteries
title_full_unstemmed Greener, Safer and Better Performing Aqueous Binder for Positive Electrode Manufacturing of Sodium Ion Batteries
title_sort Greener, Safer and Better Performing Aqueous Binder for Positive Electrode Manufacturing of Sodium Ion Batteries
author_id_str_mv 1e3ac1c92bb33b8dbeeeaaaa9f3644de
3ed0b4f2ff4fb9e87c7a73e7a3c39da7
author_id_fullname_str_mv 1e3ac1c92bb33b8dbeeeaaaa9f3644de_***_Santosh Kumar Behara
3ed0b4f2ff4fb9e87c7a73e7a3c39da7_***_Anji Munnangi
author Santosh Kumar Behara
Anji Munnangi
author2 Ruochen Xu
Venkat Pamidi
Yushu Tang
Stefan Fuchs
Helge S. Stein
Bosubabu Dasari
Zhirong Zhao‐Karger
Santosh Kumar Behara
Yang Hu
Shivam Trivedi
Anji Munnangi
Prabeer Barpanda
Maximilian Fichtner
format Journal article
container_title ChemSusChem
container_volume 0
publishDate 2024
institution Swansea University
issn 1864-5631
1864-564X
doi_str_mv 10.1002/cssc.202301154
publisher Wiley
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description P2-type cobalt-free MnNi-based layered oxides are promising cathode materials for sodium-ion batteries (SIBs) due to their high reversible capacity and well chemical stability. However, the phase transformations during repeated (dis)charge steps lead to rapid capacity decay and deteriorated Na+ diffusion kinetics. Moreover, the electrode manufacturing based on polyvinylidene difluoride (PVDF) binder system has been reported with severely defluorination issue as well as the energy intensive and expensive process due to the use of toxic and volatile N-methyl-2-pyrrolidone (NMP) solvent. It calls for designing a sustainable, better performing, and cost-effective binder for positive electrode manufacturing. In this work, we investigated inorganic sodium metasilicate (SMS) as a viable binder in conjunction with P2-Na0.67Mn0.55Ni0.25Fe0.1Ti0.1O2 (NMNFT) cathode material for SIBs. The NMNFT-SMS electrode delivered a superior electrochemical performance compared to carboxy methylcellulose (CMC) and PVDF based electrodes with a reversible capacity of ~161 mAh/g and retaining ~83 % after 200 cycles. Lower cell impedance and faster Na+ diffusion was also observed in this binder system. Meanwhile, with the assistance of TEM technique, SMS is suggested to form a uniform and stable nanoscale layer over the cathode particle surface, protecting the particle from exfoliation/cracking due to electrolyte attack. It effectively maintained the electrode connectivity and suppressed early phase transitions during cycling as confirmed by operando XRD study. With these findings, SMS binder can be proposed as a powerful multifunctional binder to enable positive electrode manufacturing of SIBs and to overall reduce battery manufacturing costs.
published_date 2024-01-18T11:54:12Z
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