Mechanical Abuse Simulation and Thermal Runaway Risks of Large-Format Li-ion Batteries
Abstract
Internal short circuit of large-format Li-ion cells induced by mechanical abuse was simulated using a modified mechanical pinch test. A torsion force was added manually at ~40% maximum compressive loading force during the pinch test. The cell was twisted about 5 degrees to the side by horizontally pulling a wire attached to the anode tab. The combined torsion-compression force created small enough failure at the separator and allowed testing of fully charged large format Li-ion cells without triggering thermal runaway. Two types of commercial cells were tested using 4-6 cells at each state-of-charge (SOC). The 18 Ah LiFePO4 (LFP) and 25 Ah Li(NiMnCo)1/3O2 (NMC) cells were tested and the thermal runaway risk (TRR) score system was used to evaluate the safety risk of the cells under the same testing conditions. The aim is to provide the cell manufacturers and end users a tool to compare different designs and safety features.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Naval Surface Warfare Center, Carderock, MD (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1360044
- Alternate Identifier(s):
- OSTI ID: 1412560
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Power Sources
- Additional Journal Information:
- Journal Volume: 342; Journal ID: ISSN 0378-7753
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; Large format Li-ion battery; mechanical abuse; pinch-torsion; thermal runaway risk
Citation Formats
Wang, Hsin, Lara-Curzio, Edgar, Rule, Evan, and Winchester, Clint. Mechanical Abuse Simulation and Thermal Runaway Risks of Large-Format Li-ion Batteries. United States: N. p., 2017.
Web. doi:10.1016/j.jpowsour.2016.12.111.
Wang, Hsin, Lara-Curzio, Edgar, Rule, Evan, & Winchester, Clint. Mechanical Abuse Simulation and Thermal Runaway Risks of Large-Format Li-ion Batteries. United States. https://doi.org/10.1016/j.jpowsour.2016.12.111
Wang, Hsin, Lara-Curzio, Edgar, Rule, Evan, and Winchester, Clint. Wed .
"Mechanical Abuse Simulation and Thermal Runaway Risks of Large-Format Li-ion Batteries". United States. https://doi.org/10.1016/j.jpowsour.2016.12.111. https://www.osti.gov/servlets/purl/1360044.
@article{osti_1360044,
title = {Mechanical Abuse Simulation and Thermal Runaway Risks of Large-Format Li-ion Batteries},
author = {Wang, Hsin and Lara-Curzio, Edgar and Rule, Evan and Winchester, Clint},
abstractNote = {Internal short circuit of large-format Li-ion cells induced by mechanical abuse was simulated using a modified mechanical pinch test. A torsion force was added manually at ~40% maximum compressive loading force during the pinch test. The cell was twisted about 5 degrees to the side by horizontally pulling a wire attached to the anode tab. The combined torsion-compression force created small enough failure at the separator and allowed testing of fully charged large format Li-ion cells without triggering thermal runaway. Two types of commercial cells were tested using 4-6 cells at each state-of-charge (SOC). The 18 Ah LiFePO4 (LFP) and 25 Ah Li(NiMnCo)1/3O2 (NMC) cells were tested and the thermal runaway risk (TRR) score system was used to evaluate the safety risk of the cells under the same testing conditions. The aim is to provide the cell manufacturers and end users a tool to compare different designs and safety features.},
doi = {10.1016/j.jpowsour.2016.12.111},
journal = {Journal of Power Sources},
number = ,
volume = 342,
place = {United States},
year = {Wed Jan 11 00:00:00 EST 2017},
month = {Wed Jan 11 00:00:00 EST 2017}
}
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An Overview of Energy Scenarios, Storage Systems and the Infrastructure for Vehicle-to-Grid Technology
journal, August 2018
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- Energies, Vol. 11, Issue 8