1. A Preliminary Analysis on the Necessity of Battery Pack Cooling for Pure Electric Vehicles.
- Author
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Liang Jinhua, Li Jianqiu, Lu Languang, and Ouyang Minggao
- Subjects
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ELECTRIC vehicle batteries , *LITHIUM cells , *ELECTRIC batteries , *ENERGY dissipation , *SIMULATION methods & models - Abstract
Aiming at some models of electric vehicles without battery pack cooling device recently appeared on vehicle market, a feasibility analysis on electric vehicles without battery pack cooling device is conducted in this paper by both measurement test and model simulation on an EV with lithium iron phosphate battery but no cooling device currently in operation. The analysis leads to a conclusion that at the early operation stage of EV, due to small internal resistance and large heat capacity there is not much temperature rise in battery pack so if suitable initial temperature is assured (in particular with battery pack exchange mode) the battery pack can work without cooling device; However with the aging of battery, the internal resistance of battery greatly increases resulting in significant temperature rise, the heat dissipation of battery pack should be considered. [ABSTRACT FROM AUTHOR]
- Published
- 2012