Power battery pack based on foamed aluminum material and cylindrical battery
A technology for cylindrical batteries and power battery packs, applied to secondary batteries, battery pack components, circuits, etc., to achieve the effects of improved impact resistance, low density, and enhanced fluid mixing
Active Publication Date: 2020-08-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the existing electric vehicle power battery packs in terms of impact resistance and heat dissipation performance, and propose a power battery pack based on foamed aluminum materials and cylindrical batteries, which can not only improve power The external protection performance of the battery pack can also improve the internal heat dissipation performance, thereby improving the safety of the electric vehicle battery pack as a whole, avoiding thermal runaway and causing fire accidents under collisions or severe working conditions, and ensuring the safety of the battery and passengers provides a strong guarantee
Method used
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[0026] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0027] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
[0028] Such as figure 1 As shown, the battery tray is fixed on the longitudinal beam of the automobile chassis through the connecting strip, and the tray is located on the upper part of the chassis beam, and the tray and the beam are fixed by brazing. The power battery package based on the aluminum foam sandwich panel structure of the present invention Arranged inside the battery tray, and more than one can be arranged at the same time.
[0029] Such as figure 2 As shown, the prese...
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The invention discloses a power battery pack based on a foamed aluminum material and cylindrical batteries. The power battery pack comprises a battery case, N module separating plates, and N+1 battery modules, wherein each battery module comprises a module base, M cylindrical hollow heat-dissipating pipes, and M cylindrical battery individuals; the M cylindrical battery individuals are disposed in the M battery arrangement holes of the module base through the M cylindrical hollow heat-dissipating pipes; the outer wall plate and the inner wall plate of the column wall of each cylindrical hollow heat-dissipating pipe are made of lightweight heat conductive material; the sandwich panel of each column wall is made of an open-hole foamed aluminum material; the N module separating plates divide the battery case evenly into N+1 chambers for holding the N+1 battery modules; an air outlet is arranged on a cover plate; and an air inlet is arranged on a bottom plate. The open-hole and closed-hole foamed aluminum materials are applied to the external protection structure and the internal heat dissipation structure of the power battery pack respectively, so as to improve the impact resistance and thermal safety of the power battery pack, thereby protecting the safety of the power battery and occupants.
Description
technical field [0001] The invention relates to a power battery pack, in particular to a power battery pack based on foamed aluminum material and cylindrical batteries. Background technique [0002] Due to the aggravation of global warming, environmental pollution and the depletion of oil resources, people are actively looking for effective solutions. As an emerging industry, new energy vehicles have basically zero pollution emissions to the external environment. It can effectively alleviate the increasingly serious environmental problems while meeting people's travel needs. Vigorously developing new energy vehicles is also one of the important strategic directions of our country now. Among them, electric vehicles are the main research direction in the new energy vehicle industry. Adaptability, electric vehicles are usually equipped with lithium-ion battery packs with high energy density, low self-discharge rate and no memory effect, but this also makes electric vehicles ha...
Claims
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IPC IPC(8): H01M2/10H01M10/655H01M10/613H01M10/625H01M10/643H01M10/6562
CPCH01M10/613H01M10/625H01M10/643H01M10/655H01M10/6562H01M50/20Y02E60/10
Inventor 王源隆于意赵万忠王春燕周冠
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS