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

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.
2018
Event: The Energy & Materials Research Conference (EMR 2018) , November 8-9, 2018 , Torremolinos, Spain.
(Conference item: Conference , Poster )

Abstract in another language

A new type of high-temperature stable and self-supporting composite separator for lithium-ion batteries is 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 are investigated and compared to commercial polymer-based separators. Full-cell configuration cycling tests at different current rates are performed using graphite and Lithium iron phosphate as electrode materials. The glass separator is high-temperature tested and shows a stability up to at least 600 °C without significant shrinking. Furthermore, it shows an exceptional wettability for non-aqueous electrolytes. The electrochemical performance is excellent compared to commercially available polymer-based separators. The results clearly show that glass platelets, integrated in a glass fiber nonwoven perform remarkably as a separator material in lithium-ion batteries and show a high temperature stability.

Further data

Item Type: Conference item (Poster)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Materials Processing
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 19 Dec 2018 08:49
Last Modified: 14 Mar 2019 09:27
URI: https://eref.uni-bayreuth.de/id/eprint/46706