Heat dissipating structure for lithium battery module
A technology of heat dissipation structure and battery module, applied in battery pack parts, secondary batteries, structural parts, etc., can solve the problems of battery spontaneous combustion, explosion, battery temperature affecting life and discharge performance, etc., to extend service life, improve Reliability and the effect of improving recycling efficiency
Inactive Publication Date: 2016-12-21
GUANGDONG UNIV OF TECH
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Problems solved by technology
However, lithium-ion batteries will generate huge heat in their high-power operation and harsh working environment, which will lead to overheating of the battery and affect its life and discharge performance. In severe cases, it will cause major dangerous accidents such as spontaneous combustion or explosion of the battery.
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[0023] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0024] Such as Figure 1-3 As shown, a lithium battery module heat dissipation structure includes a module case 1, a battery module and a phase change material 4, wherein the module case 1 is a cuboid structure, and the module case 1 is made of light aluminum alloy material, and the module casing 1 is a hollow cavity with an opening at the top, the battery module is located in the module casing 1, and the phase change material 4 is filled in the hollow cavity, so The phase change material 4 is made of a polymer material, the polymer material is paraffin or expanded graphite, and the phase change temperature of the phase change material 4 is between 45°C and 55°C; the outer wall of the module housing 1 There are heat dissipation fins 102 on it, the cross section of the h...
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Abstract
The invention discloses a heat dissipating structure for a lithium battery module. The heat dissipating structure comprises a module shell, the battery module and a phase-change material. The module shell is of a cuboid structure, the module shell is a hollow cavity with an opening in the top, the battery module is located in the module shell, and the hollow cavity is filled with the phase-change material. A heat dissipating fin is arranged on the outer wall of the module shell, and a heat conduction fin is arranged on the inner wall of the module shell. The battery module is wrapped with the phase-change material. The phase-change material makes contact with the heat conduction fin on the inner wall of the module shell. According to the heat dissipating structure, heat produced by batteries is quickly transmitted to the phase-change material through the high-heat-conduction fin so that the heat can be quickly absorbed by the module shell and dissipated outwards, the temperature of the lithium batteries can be effectively controlled, and the temperature among the batteries can be balanced.
Description
technical field [0001] The invention relates to the field of heat dissipation of lithium ion batteries, in particular to a heat dissipation structure of a lithium battery module. Background technique [0002] At present, lithium-ion batteries are widely used in various electronic industries due to their excellent high energy density, high cycle life, wide operating temperature range and low self-discharge performance. In particular, it has recently been widely used in unmanned aircraft as a power supply and energy storage system. However, lithium-ion batteries will generate huge heat in their high-power operation and harsh working environment, which will lead to overheating of the battery and affect its life and discharge performance. In severe cases, it will cause major dangerous accidents such as spontaneous combustion or explosion of the battery. . Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings and deficiencies ...
Claims
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IPC IPC(8): H01M10/613H01M10/62H01M10/655H01M10/6555H01M10/6569H01M2/10
CPCH01M10/613H01M10/62H01M10/655H01M10/6555H01M10/6569H01M50/20Y02E60/10
Inventor 吕又付张国庆
Owner GUANGDONG UNIV OF TECH