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Micron-sized single-crystal cathodes for sodium-ion batteries

Venkat Pamidi, Shivam Trivedi, Santosh Kumar Behara, Maximilian Fichtner, Anji Munnangi Orcid Logo

iScience, Volume: 25, Issue: 5, Start page: 104205

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

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DOI (Published version): 10.1016/j.isci.2022.104205

Abstract

Confining the particle-electrolyte interactions to the particle surface in electrode materials is vital to develop sustainable and safe batteries. Micron-sized single-crystal particles offer such opportunities. Owing to the reduced surface area and grain boundary-free core, particle-electrolyte inte...

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Published in: iScience
ISSN: 2589-0042
Published: Elsevier BV 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa60744
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spelling 2022-10-27T12:07:51.0052101 v2 60744 2022-08-05 Micron-sized single-crystal cathodes for sodium-ion batteries 1e3ac1c92bb33b8dbeeeaaaa9f3644de Santosh Kumar Behara Santosh Kumar Behara true false 3ed0b4f2ff4fb9e87c7a73e7a3c39da7 0000-0001-9101-0252 Anji Munnangi Anji Munnangi true false 2022-08-05 MTLS Confining the particle-electrolyte interactions to the particle surface in electrode materials is vital to develop sustainable and safe batteries. Micron-sized single-crystal particles offer such opportunities. Owing to the reduced surface area and grain boundary-free core, particle-electrolyte interactions in micron-sized single-crystal particles will be confined to the particle surface. Here, we reveal the potential of such materials in sodium-ion batteries. We synthesized and investigated the chemical, electrochemical, and thermal properties of single-crystalline P2-type Na0.7Mn0.9Mg0.1O2 as a cathode material for sodium-ion batteries. Single-crystalline Na0.7Mn0.9Mg0.1O2 with a mean particle size of 8.1 μm exhibited high cycling and voltage stability. In addition, the exothermic heat released by the charged single-crystal Na0.7Mn0.9Mg0.1O2 cathodes was four times lower than that of the corresponding polycrystalline Na0.7Mn0.9Mg0.1O2. This significantly enhances the thermal stability of electrode materials and possibly mitigates thermal runaways in batteries. Surprisingly, single crystals of Na0.7Mn0.9Mg0.1O2 were relatively stable in water and ambient atmosphere. Journal Article iScience 25 5 104205 Elsevier BV 2589-0042 20 5 2022 2022-05-20 10.1016/j.isci.2022.104205 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University Not Required This work contributes to the research performed at CELEST (Center for Electrochemical Energy Storage Ulm-Karlsruhe) and was funded by the German Research Foundation (DFG) under Project ID 390874152 (POLiS Cluster of Excellence). MAR acknowledges Engineering and Physical Sciences Research Council (EPSRC): grant EP/V014994/1. The authors acknowledge the help of Tobias Braun for FIB measurement. 2022-10-27T12:07:51.0052101 2022-08-05T12:28:30.0096571 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Venkat Pamidi 1 Shivam Trivedi 2 Santosh Kumar Behara 3 Maximilian Fichtner 4 Anji Munnangi 0000-0001-9101-0252 5 60744__24864__69bd677795e240b29578115e1c25beb0.pdf 60744.pdf 2022-08-05T12:32:54.9493067 Output 5274579 application/pdf Version of Record true This is an open access article under the CC BY license true eng http://creativecommons.org/licenses/by/4.0/
title Micron-sized single-crystal cathodes for sodium-ion batteries
spellingShingle Micron-sized single-crystal cathodes for sodium-ion batteries
Santosh Kumar Behara
Anji Munnangi
title_short Micron-sized single-crystal cathodes for sodium-ion batteries
title_full Micron-sized single-crystal cathodes for sodium-ion batteries
title_fullStr Micron-sized single-crystal cathodes for sodium-ion batteries
title_full_unstemmed Micron-sized single-crystal cathodes for sodium-ion batteries
title_sort Micron-sized single-crystal cathodes for 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 Venkat Pamidi
Shivam Trivedi
Santosh Kumar Behara
Maximilian Fichtner
Anji Munnangi
format Journal article
container_title iScience
container_volume 25
container_issue 5
container_start_page 104205
publishDate 2022
institution Swansea University
issn 2589-0042
doi_str_mv 10.1016/j.isci.2022.104205
publisher Elsevier BV
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 - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description Confining the particle-electrolyte interactions to the particle surface in electrode materials is vital to develop sustainable and safe batteries. Micron-sized single-crystal particles offer such opportunities. Owing to the reduced surface area and grain boundary-free core, particle-electrolyte interactions in micron-sized single-crystal particles will be confined to the particle surface. Here, we reveal the potential of such materials in sodium-ion batteries. We synthesized and investigated the chemical, electrochemical, and thermal properties of single-crystalline P2-type Na0.7Mn0.9Mg0.1O2 as a cathode material for sodium-ion batteries. Single-crystalline Na0.7Mn0.9Mg0.1O2 with a mean particle size of 8.1 μm exhibited high cycling and voltage stability. In addition, the exothermic heat released by the charged single-crystal Na0.7Mn0.9Mg0.1O2 cathodes was four times lower than that of the corresponding polycrystalline Na0.7Mn0.9Mg0.1O2. This significantly enhances the thermal stability of electrode materials and possibly mitigates thermal runaways in batteries. Surprisingly, single crystals of Na0.7Mn0.9Mg0.1O2 were relatively stable in water and ambient atmosphere.
published_date 2022-05-20T04:19:06Z
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