Derivation and finite element modeling validation of similarity criteria of temperature field inside lithium-ion battery

作者：Cheng Hongzheng; Zhang Lijun^*; Ruan Cheng; Diao Kun

来源：Journal of Tongji University(Natural Science), 2013, 41(8): 1249-1254.

DOI：10.3969/j.issn.0253-374x.2013.08.022

• Dimensional analysis methods
• Multilayer structures
• Similarity coefficients
• Similarity theory
• Simulation and analysis
• Single-layer structure
• Three dimensional finite element model
• Transient temperature fields

The dimensional analysis method is employed to derive similarity criteria and the similarity coefficients of battery interior temperature fields based on the governing partial differential equations describing the three dimensional transient temperature field. To validate the similarity criteria and the similarity coefficients, three dimensional finite element models of battery temperature field are established on the assumption that the battery has single-layer structure and multi-layer structure. The simulation results show that the similarity criteria and the similarity coefficients prove to be correct, which can be used for battery temperature fields simulation and analysis.

• 出版日期2013
• 单位同济大学