Temperature Difference Control Strategy and Flow Field Uniformity Analysis of Ni-Mh Power Battery Package

Paper #:
  • 2012-01-2018

Published:
  • 2012-09-24
Citation:
Changming, H., "Temperature Difference Control Strategy and Flow Field Uniformity Analysis of Ni-Mh Power Battery Package," SAE Technical Paper 2012-01-2018, 2012, https://doi.org/10.4271/2012-01-2018.
Author(s):
Affiliated:
Pages:
6
Abstract:
The nonuniformity property of the temperature field distribution will not only affect on the battery charging and discharging performance but also its lifetime. In this paper the elementary structural design is implemented for Ni-Mh battery package and the corresponding test platform is constructed from the point of view of temperature difference control strategy, the test results show that the present structural design schemes can effectively restrain temperature difference enlargement among the battery stacks. Through the application of adopting the flow field uniformity method to control temperature difference, and flow field optimization inside the battery package, it is found that the flow field velocity change quantity ΔV is gradually reduced as the increase of the afflux hood angle Ak and air vent width Da, and the difference of battery temperature is relatively lower, which denoting that the corresponding relationship can be created based on test data.
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