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Flexible, Heat-Resistant, and Flame-Retardant Glass Fiber Nonwoven/Glass Platelet Composite Separator for Lithium-Ion Batteries

URN to cite this document: urn:nbn:de:bvb:703-epub-4267-4

Title data

Schadeck, Ulrich ; Kyrgyzbaev, Kanat ; Zettl, Heiko ; Gerdes, Thorsten ; Moos, Ralf:
Flexible, Heat-Resistant, and Flame-Retardant Glass Fiber Nonwoven/Glass Platelet Composite Separator for Lithium-Ion Batteries.
In: Energies. Vol. 11 (2018) Issue 4 . - No. 999.
ISSN 1996-1073
DOI der Verlagsversion: https://doi.org/10.3390/en11040999

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Abstract

A new type of high-temperature stable and self-supporting composite separator for lithium-ion batteries was developed consisting of custom-made ultrathin micrometer-sized glass platelets embedded in a glass fiber nonwoven together with a water-based sodium alginate binder. The physical and electrochemical properties were investigated and compared to commercial polymer-based separators. Full-cell configuration cycling tests at different current rates were performed using graphite and lithium iron phosphate as electrode materials. The glass separator was high-temperature tested and showed a stability up to at least 600 °C without significant shrinking. Furthermore, it showed an exceptional wettability for non-aqueous electrolytes. The electrochemical performance was excellent compared to commercially available polymer-based separators. The results clearly show that glass platelets integrated into a glass fiber nonwoven performs remarkably well as a separator material in lithium-ion batteries and show high-temperature stability.

Further data

Item Type: Article in a journal
Keywords: glass platelets; composite separator; high-temperature stability; full-cell configuration cycling tests; lithium-ion battery
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Institutions of the University: Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Electrochemical Process Engineering
Faculties > Faculty of Engineering Science > Chair Functional Materials
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions
Research Institutions > Central research institutes
Research Institutions > Central research institutes > Bayreuth Center for Material Science and Engineering - BayMAT
Research Institutions > Research Units
Research Institutions > Research Units > Zentrum für Energietechnik - ZET
Graduate Schools > TAO-Graduiertenkolleg Energieautarke Gebäude
Graduate Schools
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-4267-4
Date Deposited: 04 Mar 2019 12:32
Last Modified: 10 Jul 2020 09:31
URI: https://epub.uni-bayreuth.de/id/eprint/4267

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