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Assembled cell having built-in liquid cooling structure

A combined battery and liquid cooling structure technology, which is applied to secondary batteries, circuits, electrical components, etc., can solve problems such as good implementation and difficult liquid cooling methods, and achieve small connection surface, good cooling effect, and large capacity Effect

Active Publication Date: 2014-02-19
MICROVAST POWER SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Nowadays, the preparation of cylindrical lithium-ion secondary batteries has relatively mature processes and standards, but when using cylindrical lithium-ion secondary batteries as power battery packs, the cooling of the battery is a difficult task due to the structural characteristics of cylindrical batteries. More difficult problems to solve, especially the liquid cooling method is difficult to achieve well in practice

Method used

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  • Assembled cell having built-in liquid cooling structure
  • Assembled cell having built-in liquid cooling structure
  • Assembled cell having built-in liquid cooling structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] as attached figure 2 to attach Figure 8 As shown, the structure of the battery is also similar to the shell-and-tube structure, which includes electrodes, electrolyte, and also includes a cell compartment 20 and a battery case 30 .

[0049] as attached figure 2 , 3 As shown, the cell compartment 20 adopts a shell-like structure, including: a cell compartment shell 201, two tube plates 207, and a battery coil containing tube 202 between the two tube plates, which are connected to the cell compartment shell Coolant connection 203 on the body. The shell of the cell compartment is similar to the shell of the shell-and-tube heat exchanger, the battery core containing tube is similar to the heat transfer tube bundle of the shell-and-tube heat exchanger, and the coolant connection is similar to the connection of the shell-and-tube heat exchanger.

[0050] When the cylindrical battery core 208 is placed in the core containing tube, as attached Figure 4 shown.

[0051]...

Embodiment 2

[0057] as attached Figure 9 , 10 As shown, the structure of the battery is very similar to that of a shell-and-tube heat exchanger, which includes electrodes, electrolyte, battery cell compartment 20 and two battery core storage tube boxes 40 .

[0058] The cell compartment adopts basically the same structure as that of Example 1, including: the cell compartment shell, two tube plates and the battery winding core storage tube between the two tube plates, and the cooling unit connected to the cell compartment shell. Agent takes over. The cell compartment is made of aluminum alloy through conventional casting and welding techniques.

[0059] as attached Figure 9 , 10 As shown, the battery core storage tube box 40 is sealed and connected to one side of the two tube sheets of the cell compartment, and the battery core storage tube box 40 is molded with PP plastic at one time. An electrode hole 401 is also provided on the battery core containing tube box 40 .

[0060] In or...

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PUM

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Abstract

The invention provides an assembled cell having a built-in liquid cooling structure. The assembled cell comprises electrodes and an electrolyte, and also comprises: 1, an electrical core warehouse which adopts a shell and tube structure and is composed of an electrical core warehouse shell, two tube plates, a cell core containment tube between the two tube plates, a coolant adapter connected to the electrical core warehouse shell, and a cell core in the core containment tube; and 2, a cell housing which is characterized in that: the cell housing is provided with electrode apertures for the electrodes traversing through and coolant adapter apertures for the coolant adapter traversing through, and the electrical core warehouse is arranged in the cell housing. The assembled cell having the built-in liquid cooling structure of the present invention has an excellent cooling effect on the electrical core in the cell core containment tube.

Description

technical field [0001] The present invention relates to batteries, especially lithium-ion secondary batteries. Background technique [0002] Power batteries generally refer to batteries with high capacity and certain output power density, which can be used as driving power for electric vehicles and other transportation tools and batteries for hybrid power sources. Some power batteries have been designed and improved, and can usually be used as energy storage batteries, including peak-shaving energy storage battery devices for power grids. In addition, it can also be used as a backup power supply for communication stations. [0003] In recent years, lithium-ion secondary batteries have shown promising prospects as future power batteries. However, due to the structure and principle of lithium-ion secondary batteries, lithium-ion secondary batteries often generate relatively large heat due to internal resistance during use, especially when discharging at high currents. The h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0525H01M10/613H01M10/6567H01M10/6563
CPCY02E60/122Y02E60/10
Inventor 吴海斌杰夫·徐
Owner MICROVAST POWER SYST CO LTD