Cell module with heat-radiation capability

A battery module and heat dissipation technology, applied to secondary batteries, circuits, electrical components, etc., can solve problems such as liquid leakage, thermal runaway, and smoke, and achieve high heat conduction efficiency, improved safety performance, and uniform temperature distribution.

Inactive Publication Date: 2014-08-20
MICROVAST POWER SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the high-current charging and discharging process of the power battery, a large amount of heat will accumulate inside the battery. If the heat is not removed in time, the temperature of the battery pack will rise sharply. Especially for a large-capacity battery pack, the heat release is usually higher and due to the need to meet the energy density It is easier to accumulate heat, which will lead to thermal runaway, which will further cause the battery to release gas, smoke, and liquid leakage, and may even cause the battery to burn. Therefore, the temperature management of the power battery is particularly important; while the traditional air-cooled and liquid-cooled The structure has a poor heat dissipation effect on battery packs with high energy density and huge heat generation. Patent No. CN201110135031 discloses a heat dissipation system that combines phase change materials and heat pipes
[0003] The technical solution of this patent is: pha

Method used

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  • Cell module with heat-radiation capability

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Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the present invention provides a battery module with heat dissipation capability, including several battery cells and a battery box 1 for accommodating the battery cells. The battery box 1 is filled with a phase-change material, and the battery box 1 is provided with a outlet and inlet, and a circulation pipeline 2 is set outside the battery box 1, and the contact part between the outlet and the inlet of the battery box 1 and the circulation pipeline 2 is sealed, and the circulation pipeline 2 connects the outlet and the inlet of the phase change material After being connected, a closed system is formed, and the phase change material flows out from the outlet and returns to the battery box 1 through the inlet.

[0029] A condenser 3 is installed on the circulation pipeline 2, and a cooling device 4 is installed on the condenser 3. The condenser 3 adopts an air-cooled condenser structure, and the air-cooled condenser uses air as the cooling med...

Embodiment 2

[0033] Such as figure 1 As shown, the present invention provides a battery module with heat dissipation capability, including several battery cells and a battery box 1 for accommodating the battery cells. The battery box 1 is filled with a phase-change material, and the battery box 1 is provided with a outlet and inlet, and a circulation pipeline 2 is set outside the battery box 1, and the contact part between the outlet and the inlet of the battery box 1 and the circulation pipeline 2 is sealed, and the circulation pipeline 2 connects the outlet and the inlet of the phase change material After being connected, a closed system is formed, and the phase change material flows out from the outlet and returns to the battery box 1 through the inlet.

[0034] A condenser 3 is installed on the circulation pipeline 2, and a cooling device 4 is installed on the condenser 3. The condenser 3 adopts an air-cooled condenser structure, and the air-cooled condenser uses air as the cooling med...

Embodiment 3

[0038] Such as figure 1 As shown, the present invention provides a battery module with heat dissipation capability, including several battery cells and a battery box 1 for accommodating the battery cells. The battery box 1 is filled with a phase-change material, and the battery box 1 is provided with a outlet and inlet, and a circulation pipeline 2 is set outside the battery box 1, and the contact part between the outlet and the inlet of the battery box 1 and the circulation pipeline 2 is sealed, and the circulation pipeline 2 connects the outlet and the inlet of the phase change material After being connected, a closed system is formed, and the phase change material flows out from the outlet and returns to the battery box 1 through the inlet.

[0039] A condenser 3 is installed on the circulation pipeline 2, and a cooling device 4 is installed on the condenser 3. The condenser 3 adopts an air-cooled condenser structure, and the air-cooled condenser uses air as the cooling med...

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Abstract

A provided excellent cell module with heat-radiation capability comprises a plurality of cell units and a cell box accommodating the cell units; the cell box is filled with a phase-change material; the cell box is provided with an outlet and an inlet of the phase-change material; the exterior of the cell box is provided with a circulation pipe, and the circulation pipe connects the outlet and the inlet of the phase-change material for forming an enclosed system; and the employed phase-change material is an insulative flame-retardation electrolysis-resistant thermolysis-resistant phase-change material. By employing the technical scheme, without changing the arraying state and the electrical structure of the cell unit, the heat-radiation demands of the cell module can be completely satisfied under the premise of relatively high energy density.

Description

technical field [0001] The invention relates to a battery module, in particular to a battery module with heat dissipation capability. Background technique [0002] During the high-current charging and discharging process of the power battery, a large amount of heat will accumulate inside the battery. If the heat is not removed in time, the temperature of the battery pack will rise sharply. Especially for a large-capacity battery pack, the heat release is usually higher and due to the need to meet the energy density It is easier to accumulate heat, which will lead to thermal runaway, which will further cause the battery to release gas, smoke, and liquid leakage, and may even cause the battery to burn. Therefore, the temperature management of the power battery is particularly important; while the traditional air-cooled and liquid-cooled The structure has poor heat dissipation effect on battery packs with high energy density and huge heat generation. Patent No. CN201110135031 d...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/6569
CPCY02E60/10
Inventor 杨从明仝志明
Owner MICROVAST POWER SYST CO LTD
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