Thermal Analysis and Battery Modeling of Structural Battery Composites
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Typ
Examensarbete för masterexamen
Program
Publicerad
2020
Författare
Dong, Mengyu
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
A thermo-electrochemical finite element analysis (FEA) of a structural battery is
presented. A simplified model was developed based on a one-dimensional coordinate
in through-thickness direction of the battery. This model simulates the thermal
behavior of a structural cell during the (dis)charge cycle. The mathematical
model solves the conservation of energy considering heat generations due to only
resistive heating. The voltage profile and the heat generation of a structural battery
cell with active materials: Carbon fiber/LiFePO4 were studied at different
discharge rates. The temperature profile from the pseudo two dimensional (P2D)
thermo-electrochemical model had a similar tendency to that from the 3D thermomechanical
model. The temperature profile was illustrated at several discharge
rates. It was found that the contribution of heat source due to resistive heating was
extensive at a high discharge rate. Also the thermal impact of convection condition
on the structural battery was analyzed
Beskrivning
Ämne/nyckelord
Structural battery , Thermal behavior , Heat generation , Heat exchange , Natural convection