期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 168, 期 12, 页码 -出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1945-7111/ac3c27
关键词
Batteries-Li-ion; Thermal runaway; Autoclave; Calorimetry; Safety; Lithium-ion; Venting
资金
- TUM Graduate School
A total of 25 different types of prismatic lithium-ion cells with different capacities were studied in an autoclave calorimetry experiment to analyze their behavior during thermal runaway. The study found approximately linear correlations between safety parameters and cell capacity, which can be used for simulations and predicting the behavior of future battery cells within the tested range, contributing to safer battery pack design.
A total number of 25 different types of prismatic lithium-ion cells with a capacity between 8 and 145 Ah are examined in an autoclave calorimetry experiment in order to analyze their behavior during thermal runaway (TR). The safety relevant parameters such as mass loss, venting gas production and heat generation during TR are determined in two experiments per cell type and the results are compared to literature. An approximately linear dependency of the three parameters on the cell capacity is observed and hence correlations are derived. Due to the wide range in cell properties the correlations can be used as input for simulations as well as to predict the behavior of future battery cells within the property range of those tested and therefore contribute to the design of a safer battery pack.
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