LAPSE:2023.31971
Published Article
LAPSE:2023.31971
Experimental Thermal Hazard Investigation of Pressure and EC/PC/EMC Mass Ratio on Electrolyte
April 19, 2023
Abstract
Electrolytes are involved in the thermal runaway (TR) process of cells, which is a potential hazard in lithium-ion batteries (LIBs). Therefore, the effects of different mass ratio of carbonate solvents (ethylene carbonate (EC)/propylene carbonate (PC)/ethyl methyl carbonate (EMC)) with LiBF4 and different environmental pressure on the combustion characteristics of electrolyte such as flame centerline temperature, mass loss rate (MLR) and heat release rate (HRR) were analyzed. The combustion process could be divided into four stages: ignition, stable combustion stage, stable combustion with flame color change stage and extinguishing; with the decrease of pressure, the MLR of electrolyte declined and the combustion time prolonged, while the temperature of flame centerline increased.
Electrolytes are involved in the thermal runaway (TR) process of cells, which is a potential hazard in lithium-ion batteries (LIBs). Therefore, the effects of different mass ratio of carbonate solvents (ethylene carbonate (EC)/propylene carbonate (PC)/ethyl methyl carbonate (EMC)) with LiBF4 and different environmental pressure on the combustion characteristics of electrolyte such as flame centerline temperature, mass loss rate (MLR) and heat release rate (HRR) were analyzed. The combustion process could be divided into four stages: ignition, stable combustion stage, stable combustion with flame color change stage and extinguishing; with the decrease of pressure, the MLR of electrolyte declined and the combustion time prolonged, while the temperature of flame centerline increased.
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Keywords
combustion characteristics, electrolyte, environmental pressure, lithium-ion battery, mass ratio
Subject
Suggested Citation
Liu C, Zheng K, Zhou Y, Zhu K, Huang Q. Experimental Thermal Hazard Investigation of Pressure and EC/PC/EMC Mass Ratio on Electrolyte. (2023). LAPSE:2023.31971
Author Affiliations
Liu C: School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China; Institute of Advanced Energy Materials and Systems, North University of China, Taiyuan 030051, China [ORCID]
Zheng K: School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
Zhou Y: State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
Zhu K: Business School, University of Shanghai for Science & Technology, Shanghai 200093, China
Huang Q: School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China; Institute of Advanced Energy Materials and Systems, North University of China, Taiyuan 030051, China [ORCID]
Zheng K: School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
Zhou Y: State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
Zhu K: Business School, University of Shanghai for Science & Technology, Shanghai 200093, China
Huang Q: School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China; Institute of Advanced Energy Materials and Systems, North University of China, Taiyuan 030051, China [ORCID]
Journal Name
Energies
Volume
14
Issue
9
First Page
2511
Year
2021
Publication Date
2021-04-27
ISSN
1996-1073
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Original Submission
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PII: en14092511, Publication Type: Journal Article
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LAPSE:2023.31971
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https://doi.org/10.3390/en14092511
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Apr 19, 2023
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