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Are lithium ion cells intrinsically safe?

Authors
Dubaniewicz-TH Jr.; DuCarme-JP
Source
2012 IEEE Industry Applications Society Annual Meeting: Forty-seventh IAS Annual Meeting, October 7-11, 2012, Las Vegas, Nevada. Piscataway, NJ: Institute of Electrical and Electronics Engineers, 2012 Oct; :1-10
NIOSHTIC No.
20041612
Abstract
National Institute for Occupational Safety and Health (NIOSH) researchers are studying the potential for Li-ion battery thermal runaway from an internal short circuit in equipment approved as permissible for use in underground coal mines. Researchers used a plastic wedge to induce internal short circuits for thermal runaway susceptibility evaluation purposes, which proved to be a more severe test than the flat plate method for selected Li-ion cells. Researchers conducted cell crush tests within a 20-L chamber filled with 6.5% CH4-air to simulate the mining hazard. Results indicate that LG Chem ICR18650S2 LiCoO2 cells pose a CH4 explosion hazard from a cell internal short circuit. Under specified test conditions, A123 Systems 26650 LiFePO4 cells were safer than the LG Chem ICR18650S2 LiCoO2 cells at a conservative statistical significance level.
Keywords
Mining-industry; Underground-mining; Coal-mining; Explosion-protection; Explosion-prevention; Explosive-atmospheres; Explosive-gases; Explosive-hazards; Electrical-hazards; Author Keywords: Batteries; Electrical accidents; Explosion protection; Fires; Hazardous areas; Ignition; Mining industry; Occupational safety; Standardization
Contact
Thomas H. Dubaniewicz, Jr., Lead Research Electrical Engineer, National Institute for Occupational Safety and Health, Office of Mine Safety and Health Research, 626 Cochrans Mill Rd., Pittsburgh, PA 15236, USA
Publication Date
20121001
Document Type
Conference/Symposia Proceedings
Email Address
tcd5@cdc.gov
Fiscal Year
2013
NTIS Accession No.
NTIS Price
Identifying No.
B10242012
ISSN
0197-2618
NIOSH Division
OMSHR
Priority Area
Mining
Source Name
2012 IEEE Industry Applications Society Annual Meeting: Forty-seventh IAS Annual Meeting, October 7-11, 2012, Las Vegas, Nevada
State
PA; NV; NJ
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