Battery module with fluid cooling passage

A battery module and fluid cooling technology, applied in batteries, secondary batteries, battery temperature control, etc., can solve the problems of difficult battery packs, low battery convection heat exchange coefficient, and inability to ensure uniform heat exchange, so as to ensure thermal stability. The effect of exchange efficiency, simple assembly process and convenient use

Inactive Publication Date: 2014-07-02
SAIC MOTOR
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AI Technical Summary

Problems solved by technology

Due to the characteristics of nickel-based batteries and lithium batteries, they have strict requirements on the working temperature. The temperature of the battery itself and the internal temperature of the battery pack are consistent, which seriously affects the service life and discharge power of the battery pack.
Most of the existing battery packs are air-cooled or heated by warm air. The convect

Method used

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  • Battery module with fluid cooling passage
  • Battery module with fluid cooling passage
  • Battery module with fluid cooling passage

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, a battery module with a fluid cooling channel includes several liquid heat exchange management units 1, and each liquid heat exchange management unit is provided with several battery cells 4 side by side in the same liquid heat exchange management unit Two adjacent battery cells 4 are insulated by battery grids 10, such as figure 2 As shown, in this embodiment, each liquid heat exchange management unit 1 is provided with two battery cells 4; several liquid heat exchange management units 1 are connected side by side to form a battery module, and the rear end cover of the entire battery module A tab cover 12 is provided, and a left cover 21 and a right cover 22 are installed on both sides of the battery module. There are 16 total negative pole ears.

[0025] Such as image 3 , 4 , 5, the present invention can be further described as, the liquid heat exchange management unit includes a water jacket shell 2, and the water jacket shell 2 is pr...

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Abstract

The invention relates to the field of battery modules, in particular to a battery module for supplying power to an electric vehicle. A battery module with a fluid cooling passage comprises a plurality of liquid heat exchange managing units, wherein each liquid heat exchange managing unit is internally provided with a plurality of battery cells side by side; two adjacent battery cells in the same liquid heat exchange managing unit are insulated from each other through a battery grating spacing; the liquid heat exchange managing units are connected side by side to form the battery module; a tab protecting cover covers the rear end of the whole battery module; a left side cover and a right side cover are arranged on the two sides of the battery module. According to the battery module, heat management is carried out on each battery cell in the battery module, so that the heat exchange efficiency of the battery cells and the uniformity of temperature among the different battery cells are ensured, the battery module adopts an extensible module structure, and the composition is flexible according to requirements; moreover, the types of components are reduced, so that the assembly technology of a water jacket housing assembly is simple, and the battery module is extremely convenient to use.

Description

technical field [0001] The invention relates to the field of battery modules, in particular to a battery module for powering electric vehicles. Background technique [0002] Electric vehicles, including pure electric vehicles, hybrid vehicles and plug-in hybrid vehicles, have better energy-saving and emission-reduction effects than vehicles that use engines as power. As a power supply system, the battery system is one of the key systems of electric vehicles. Therefore, it is particularly important to design the battery modules in the battery system. [0003] Nowadays, nickel-based batteries and lithium batteries are mostly used in vehicle battery systems. Lithium batteries have more advantages than nickel-based batteries, such as higher energy density and power, long cycle life, no memory effect, and environmental protection. Therefore, lithium batteries is widely used. Due to the characteristics of nickel-based batteries and lithium batteries, they have strict requiremen...

Claims

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Application Information

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IPC IPC(8): H01M10/60H01M10/6568H01M10/625
CPCH01M2220/20Y02E60/10
Inventor 亓新亮秦超张靖
Owner SAIC MOTOR
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