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First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries

Mohammed Hammad Fawey, Venkata Sai Kiran Chakravadhanula, Anji Munnangi Orcid Logo, Carine Rongeat, Horst Hahn, Maximilian Fichtner, Christian Kübel

Journal of Power Sources, Volume: 466, Start page: 228283

Swansea University Author: Anji Munnangi Orcid Logo

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DOI (Published version): 10.1016/j.jpowsour.2020.228283

Abstract

A focused ion beam (FIB) system is used to fabricate a micron-sized all-solid-state fluoride ion cell from a bulk battery for in situ transmission electron microscopy (TEM) testing. The bulk battery is based on a La0·9Ba0·1F2.9 solid-state electrolyte with a nanocomposite of Cu/C as a cathode and a...

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Published in: Journal of Power Sources
ISSN: 0378-7753
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54756
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spelling 2022-12-05T11:30:55.2434426 v2 54756 2020-07-15 First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries 3ed0b4f2ff4fb9e87c7a73e7a3c39da7 0000-0001-9101-0252 Anji Munnangi Anji Munnangi true false 2020-07-15 MTLS A focused ion beam (FIB) system is used to fabricate a micron-sized all-solid-state fluoride ion cell from a bulk battery for in situ transmission electron microscopy (TEM) testing. The bulk battery is based on a La0·9Ba0·1F2.9 solid-state electrolyte with a nanocomposite of Cu/C as a cathode and a nanocomposite of MgF2, Mg, La0·9Ba0·1F2.9 and C as an anode. The evolution of the morphology, structure, and composition of the electrodes and their interfaces with the electrolyte is characterized using in-situ TEM during electrochemical cycling. The high-resolution transmission electron microscopy (HRTEM) and scanning transmission electron microscopy-energy dispersive X-ray (STEM-EDX) analysis of the cathode-electrolyte interface reveal the expected formation of CuF2 phase during charging. During cycling, grain growth of Cu in the cathode ingredients and Cu diffusion from the cathode into the electrolyte are observed in addition to void formation. Journal Article Journal of Power Sources 466 228283 Elsevier BV 0378-7753 In situ transmission electron microscopy (TEM), Focused ion beam (FIB), Fluoride ion battery, All-solid-state battery, Electrode/electrolyte interfaces, Electrochemistry 1 8 2020 2020-08-01 10.1016/j.jpowsour.2020.228283 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2022-12-05T11:30:55.2434426 2020-07-15T15:34:27.4528397 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Mohammed Hammad Fawey 1 Venkata Sai Kiran Chakravadhanula 2 Anji Munnangi 0000-0001-9101-0252 3 Carine Rongeat 4 Horst Hahn 5 Maximilian Fichtner 6 Christian Kübel 7 54756__17722__37b62f3b0e7a469ea01d1c0204258687.pdf 54756.pdf 2020-07-16T11:58:53.2007608 Output 215074 application/pdf Accepted Manuscript true 2021-05-19T00:00:00.0000000 © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ true English
title First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries
spellingShingle First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries
Anji Munnangi
title_short First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries
title_full First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries
title_fullStr First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries
title_full_unstemmed First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries
title_sort First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries
author_id_str_mv 3ed0b4f2ff4fb9e87c7a73e7a3c39da7
author_id_fullname_str_mv 3ed0b4f2ff4fb9e87c7a73e7a3c39da7_***_Anji Munnangi
author Anji Munnangi
author2 Mohammed Hammad Fawey
Venkata Sai Kiran Chakravadhanula
Anji Munnangi
Carine Rongeat
Horst Hahn
Maximilian Fichtner
Christian Kübel
format Journal article
container_title Journal of Power Sources
container_volume 466
container_start_page 228283
publishDate 2020
institution Swansea University
issn 0378-7753
doi_str_mv 10.1016/j.jpowsour.2020.228283
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 A focused ion beam (FIB) system is used to fabricate a micron-sized all-solid-state fluoride ion cell from a bulk battery for in situ transmission electron microscopy (TEM) testing. The bulk battery is based on a La0·9Ba0·1F2.9 solid-state electrolyte with a nanocomposite of Cu/C as a cathode and a nanocomposite of MgF2, Mg, La0·9Ba0·1F2.9 and C as an anode. The evolution of the morphology, structure, and composition of the electrodes and their interfaces with the electrolyte is characterized using in-situ TEM during electrochemical cycling. The high-resolution transmission electron microscopy (HRTEM) and scanning transmission electron microscopy-energy dispersive X-ray (STEM-EDX) analysis of the cathode-electrolyte interface reveal the expected formation of CuF2 phase during charging. During cycling, grain growth of Cu in the cathode ingredients and Cu diffusion from the cathode into the electrolyte are observed in addition to void formation.
published_date 2020-08-01T04:08:29Z
_version_ 1763753601257177088
score 11.036378

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