Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries

Michalak, Anna Michalak; Behara, Santosh Kumar; Munnangi, Anji

doi:10.1021/acsami.3c16153

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Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries

Anna Michalak Michalak, Santosh Kumar Behara, Anji Munnangi

ACS Applied Materials and Interfaces, Volume: 16, Issue: 6, Pages: 7112 - 7118

Swansea University Authors: Anna Michalak Michalak, Santosh Kumar Behara, Anji Munnangi

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DOI (Published version): 10.1021/acsami.3c16153

Abstract

Developing high-performing solid electrolytes that could replace flammable organic liquid electrolytes is vital in designing safer solid-state batteries. Among the sodium-ion (Na+) conducting solid electrolytes, Na-β″-alumina (BASE) is highly regarded for its employment in solid-state battery applic...

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Published in:	ACS Applied Materials and Interfaces
ISSN:	1944-8244 1944-8252
Published:	American Chemical Society (ACS) 2024
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URI:	https://cronfa.swan.ac.uk/Record/cronfa65632
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spelling	v2 65632 2024-02-13 Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries 6698ee175d629b1432e6e9bd919196bf Anna Michalak Michalak Anna Michalak Michalak true false 1e3ac1c92bb33b8dbeeeaaaa9f3644de Santosh Kumar Behara Santosh Kumar Behara true false 3ed0b4f2ff4fb9e87c7a73e7a3c39da7 0000-0001-9101-0252 Anji Munnangi Anji Munnangi true false 2024-02-13 EAAS Developing high-performing solid electrolytes that could replace flammable organic liquid electrolytes is vital in designing safer solid-state batteries. Among the sodium-ion (Na+) conducting solid electrolytes, Na-β″-alumina (BASE) is highly regarded for its employment in solid-state battery applications due to its high ionic conductivity and electrochemical stability. BASE has long been employed in commercial Na–NiCl2 and Na–S batteries. However, the synthesis of highly conductive BASE is energy-intensive, involving elevated temperatures for sintering and the incorporation of stabilizing additives. Additionally, BASE is highly sensitive to humidity, which limits its applications. Hence, there is an intense search to identify suitable high-performing solid electrolytes that could replace BASE. In this context, we reinvestigated Na5GdSi4O12 (NGS) and demonstrated that phase pure NGS could be synthesized by a simple solid-state reaction. Beyond a high ionic conductivity of 1.9 × 10–3 S cm–1 at 30 °C (1.5 × 10–3 S cm–1 for BASE), NGS exhibited high chemical as well as electrochemical stability, lower interfacial resistance, lower deposition and stripping potential, and higher short-circuiting current, designating NGS as a better solid electrolyte than BASE. Journal Article ACS Applied Materials and Interfaces 16 6 7112 7118 American Chemical Society (ACS) 1944-8244 1944-8252 Solid-state sodium batteries, solid electrolytes, Na5GdSi4O12 (NGS), Na-β″-alumina (BASE), high ionic conductivity, ceramic electrolyte 14 2 2024 2024-02-14 10.1021/acsami.3c16153 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University SU Library paid the OA fee (TA Institutional Deal) Engineering and Physical Sciences Research Council (EPSRC): grant EP/V014994/1. 2024-05-31T12:17:26.7989537 2024-02-13T10:10:37.2592905 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Anna Michalak Michalak 1 Santosh Kumar Behara 2 Anji Munnangi 0000-0001-9101-0252 3 65632__29910__56a8a24b06644d4d9105877f2f9e8711.pdf 65632.VOR.pdf 2024-04-04T11:27:16.0978072 Output 4524565 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution license (CC-BY). true eng https://creativecommons.org/licenses/by/4.0/
title	Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries
spellingShingle	Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries Anna Michalak Michalak Santosh Kumar Behara Anji Munnangi
title_short	Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries
title_full	Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries
title_fullStr	Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries
title_full_unstemmed	Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries
title_sort	Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries
author_id_str_mv	6698ee175d629b1432e6e9bd919196bf 1e3ac1c92bb33b8dbeeeaaaa9f3644de 3ed0b4f2ff4fb9e87c7a73e7a3c39da7
author_id_fullname_str_mv	6698ee175d629b1432e6e9bd919196bf_*_Anna Michalak Michalak 1e3ac1c92bb33b8dbeeeaaaa9f3644de__Santosh Kumar Behara 3ed0b4f2ff4fb9e87c7a73e7a3c39da7_**_Anji Munnangi
author	Anna Michalak Michalak Santosh Kumar Behara Anji Munnangi
author2	Anna Michalak Michalak Santosh Kumar Behara Anji Munnangi
format	Journal article
container_title	ACS Applied Materials and Interfaces
container_volume	16
container_issue	6
container_start_page	7112
publishDate	2024
institution	Swansea University
issn	1944-8244 1944-8252
doi_str_mv	10.1021/acsami.3c16153
publisher	American Chemical Society (ACS)
college_str	Faculty of Science and Engineering
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hierarchy_top_title	Faculty of Science and Engineering
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department_str	School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
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description	Developing high-performing solid electrolytes that could replace flammable organic liquid electrolytes is vital in designing safer solid-state batteries. Among the sodium-ion (Na+) conducting solid electrolytes, Na-β″-alumina (BASE) is highly regarded for its employment in solid-state battery applications due to its high ionic conductivity and electrochemical stability. BASE has long been employed in commercial Na–NiCl2 and Na–S batteries. However, the synthesis of highly conductive BASE is energy-intensive, involving elevated temperatures for sintering and the incorporation of stabilizing additives. Additionally, BASE is highly sensitive to humidity, which limits its applications. Hence, there is an intense search to identify suitable high-performing solid electrolytes that could replace BASE. In this context, we reinvestigated Na5GdSi4O12 (NGS) and demonstrated that phase pure NGS could be synthesized by a simple solid-state reaction. Beyond a high ionic conductivity of 1.9 × 10–3 S cm–1 at 30 °C (1.5 × 10–3 S cm–1 for BASE), NGS exhibited high chemical as well as electrochemical stability, lower interfacial resistance, lower deposition and stripping potential, and higher short-circuiting current, designating NGS as a better solid electrolyte than BASE.
published_date	2024-02-14T12:17:26Z
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score	11.017507

Reinvestigation of Na5GdSi4O12: A Potentially Better Solid Electrolyte than Sodium β Alumina for Solid-State Sodium Batteries

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