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In this study, a finite element analysis approach is proposed to predict the fluid-structure interaction behavior of active materials for lithium-ion batteries (LIBs), which are mainly composed of graphite powder. The porous matrix of graphite powder saturated with fluid electrolyte is considered a representative volume element (RVE) model. Three different RVE models are proposed to consider the uncertainty of the powder shape and the porosity. Pwave modulus from RVE solutions are analyzed based on the microstructure and the interaction between the fluid and the graphite powder matrix. From the results, it is found that the large surface area of the active material results in low mechanical properties of LIB, which leads to poor structural durability when subjected to dynamic loads. The results obtained in this study provide useful information for predicting the mechanical safety of a battery pack.
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참고문헌 (12)
참고문헌 신청
A. Shabana / 1996 / Vibration of Discrete and Continuous System / Springer : 106 ~
A. Thaler / 2014 / Automotive Engineering -Simulation and Validation Methods / Springer : 19 ~
C. Vinci / 2014 / / Water Resour. Res. 50 : 1616 ~
F. Maroni / 2016 / / J. Power Sources 332 : 79 ~
F. Otero / 2015 / / Compos. Struct. 122 : 405 ~
A. Thaler / 2014 / Automotive Engineering -Simulation and Validation Methods / Springer : 19 ~
C. Vinci / 2014 / / Water Resour. Res. 50 : 1616 ~
F. Maroni / 2016 / / J. Power Sources 332 : 79 ~
F. Otero / 2015 / / Compos. Struct. 122 : 405 ~
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