Method for Configuring Cooling Tube of Battery Pack and Cooling Tube of Battery Pack

A method for configuring a cooling tube of a battery pack, comprising the steps of:

• providing a cooling tube with a plurality of channels for a coolant to flow therethrough, the cooling tube defining a length, a width and a height, each channel extending across the length of the cooling tube;
• varying a number N of channels and an aspect ratio D of each channel in the cooling tube;
• determining a pressure drop ΔP across the cooling tube for each variation in the number N and aspect ratio D of the channels using an equation ΔP=f (N, D, L, T), where L is the length of the cooling tube and T is a thickness of a rib separating adjacent channels;
• determining a deformation δ of each channel when the cooling tube is bent to conform to an array of batteries of the battery pack for each variation in the number N and aspect ratio D of channels using an equation δ=f (N, D, T), and
• determining a relationship between the number of channels N, aspect ratio of the channels D and the thickness of the rib T with reference to the pressure drop ΔP and deformation δ to maximize a cooling efficiency of the cooling tube,
• wherein the cooling efficiency is related to minimizing pressure loss and minimizing deformation.