Title :
Simulating power deliverable from a Li-ion battery pack at low temperatures
Author :
Vikrant Singh;Rashed Rabaa;Chiru Venkat Reddy
Author_Institution :
General Motors Technical Center (Powertrain) Bangalore, India
Abstract :
At low temperatures, the internal resistance of a Li-ion cell is very sensitive to its temperature and SOC. As such, conventional equivalent circuit based models often fail to predict the power obtainable from a cell under low ambient temperature conditions. Electrochemistry based models have shown good promise to model cell dynamics at low temperatures (subzero temperatures). In the current study, we use a previously developed electrochemistry based cell model, and couple it with electrical solver to carry out electro-thermal simulations. Full battery pack simulations with cell and associated electrical circuitry are carried out and cranking power (in short duration ~ 10-15 sec) deliverable from pack estimated.
Keywords :
"Batteries","Integrated circuit modeling","Read only memory","Discharges (electric)","Mathematical model","Computational modeling","Physics"
Conference_Titel :
Transportation Electrification Conference (ITEC), 2015 IEEE International
DOI :
10.1109/ITEC-India.2015.7386892