Mechanical behavior and failure mechanisms of Li-ion battery separators
نویسندگان
چکیده
منابع مشابه
Li-ion Battery Separators, Mechanical Integrity and Failure Mechanisms Leading to Soft and Hard Internal Shorts
Separator integrity is an important factor in preventing internal short circuit in lithium-ion batteries. Local penetration tests (nail or conical punch) often produce presumably sporadic results, where in exactly similar cell and test set-ups one cell goes to thermal runaway while the other shows minimal reactions. We conducted an experimental study of the separators under mechanical loading, ...
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The characterization of separators for Li-ion or Li-metal batteries incorporating hydrophobic ionic liquid electrolytes is reported herein. Ionic liquids made of N-butyl-N-methylpyrrolidinium (PYR14+) or N-methoxyethyl-N-methylpyrrolidinium (PYR12O1+), paired with bis(trifluoromethanesulfonyl)imide (TFSI-) or bis(fluorosulfonyl)imide (FSI-) anions, were tested in combination with separators hav...
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The ideal battery separator would be infinitesimally thin, offer no resistance to ionic transport in electrolytes, provide infinite resistance to electronic conductivity for isolation of electrodes, be highly tortuous to prevent dendritic growths, and be inert to chemical reactions. Unfortunately, in the real world the ideal case does not exist. Real world separators are electronically insulati...
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In recent years, interest in using lithium-ion (Li-ion) batteries as power sources for a wide range of devices (particularly portable devices) has grown significantly. There is thus a real need to understand at a fundamental level a wide range of battery performance criteria (energy density, power density, safety, durability, cost). Our working group considered how to model the fundamental elec...
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Eriksson, T. 2001. LiMn2O4 as a Li-Ion Battery Cathode. From Bulk to Electrolyte Interface. Acta Universitatis Upsaliensis. Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 651. 53 pp. Uppsala. ISBN 91-554-5100-4. LiMn2O4 is ideal as a high-capacity Li-ion battery cathode material by virtue of its low toxicity, low cost, and the high natural abundance ...
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ژورنال
عنوان ژورنال: Journal of Power Sources
سال: 2017
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2017.03.003