期刊
JOURNAL OF POWER SOURCES
卷 247, 期 -, 页码 821-823出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2013.09.022
关键词
Lithium-ion batteries; Safety; Nail penetration; Smart nail; Abuse testing
Nail penetration is one safety test that Li-ion cells experience in order to simulate some aspects of an internal short circuit event. To our knowledge, nail penetration is usually performed with an ordinary steel nail. Normally, the only data gathered has been a simple pass/fail result depending on whether or not the cell emitted smoke or flame, along with a thermocouple on the surface of the cell. A smart nail has been developed to allow the collection of temperature versus time data at the point of nail penetration. This nail, in conjunction with a thermocouple on the cell surface and tabs on the ends to measure voltage, should provide some new insights into the behavior of cells during this type of abuse testing as well as aid in the developing of safer Li-ion cell chemistries. (C) 2013 Elsevier B.V. All rights reserved.
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