Creep deformation of lithium foil at moderate pressures (< 2 MPa) and temperatures (30-50°C)

Par Conseil national de recherches du Canada

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DOI	Trouver le DOI : https://doi.org/10.1149/MA2020-0251000mtgabs
Auteur	Rechercher : Ding, Shaochen¹Identifiant ORCID : https://orcid.org/0000-0003-4401-8459; Rechercher : Fairgrieve-Park, Logan Identifiant ORCID : https://orcid.org/0000-0001-7967-6238; Rechercher : Fleischauer, Michael¹Identifiant ORCID : https://orcid.org/0000-0003-0725-2297
Affiliation	Conseil national de recherches du Canada. Nanotechnologie
Format	Texte, Article
Conférence	Prime 2020 Online Meeting, Oct. 4-9, 2020, Honolulu, Hawaii
Résumé	Lithium metal is receiving significant research attention as a potential next generation negative electrode material in lithium ion batteries because it can offer a ~50% increase in cell energy density compared to conventional graphite electrodes. There are, however, a number of mechanical challenges using lithium metal electrodes. Mechanical stack pressure is required to ensure good contact between solid-state electrodes and electrolytes. Moderate to high stack pressures (e.g. < 10 MPa) can also supress void formation during fast charging and discharging. Creep, the plastic deformation of a material under constant pressure, improves battery performance by preventing and filling voids, but can also lead to decreased performance if lithium is unable to sustain the required stack pressure, and potentially cell shorting if lithium is e.g. extruded beyond the current collectors.
Date de publication	2020-11-23
Maison d’édition	IOP
Dans	ECS Meeting Abstracts MA2020-02, nº 5 : 1000–1000.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro du CNRC	NRC-NANO-74
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	bec5fb0a-6891-43e3-a1be-5344fc02d4e3
Enregistrement créé	2021-02-04
Enregistrement modifié	2021-02-04

Date de modification :: 2024-04-24