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Power battery pack based on foamed aluminum material and pouch battery

A technology of power battery packs and soft pack batteries, which is applied in the direction of batteries, secondary batteries, battery pack components, etc., can solve problems such as fire and combustion, and achieve the effects of enhanced safety, large heat transfer area, and low density

Active Publication Date: 2020-08-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by this invention is to overcome the deficiencies in the impact resistance and heat dissipation performance of the existing electric vehicle power battery pack, and propose a power battery pack based on foamed aluminum material and soft pack battery, which can not only improve the 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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  • Power battery pack based on foamed aluminum material and pouch battery
  • Power battery pack based on foamed aluminum material and pouch battery
  • Power battery pack based on foamed aluminum material and pouch battery

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0028] 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.

[0029] 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 battery pack is arranged inside the battery tray, and multiple batteries can be arranged at the same time.

[0030] Such as figure 2 (a), figure 2 (b), figure 2 As shown in (c), the present invention discloses a power battery ...

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Abstract

The invention discloses a power battery pack based on a foam aluminum material and a soft pack battery. The power battery pack comprises a battery box body, N module partitions and N+1 battery modules. Each of the battery modules comprises M groups of soft pack battery packs and M+1 heat dissipation plates which are alternately stacked. The N module partitions are uniformly set in the battery boxbody and are divided into N+1 battery module placement cavities, and N+1 battery modules are respectively fixed in the N+1 battery module placement cavities. Each of the heat dissipation plates is a sandwich structure and comprises two side plates and a sandwich plate between the two side plates, the side plates are made of lightweight heat conductive materials, and the sandwich plate of the heatdissipation plate is made of an open-pore foam aluminum material. A closed-pore foamed aluminum material is used as a filling inner core of the battery box body. According to the invention, open-poreand closed pore foam aluminum sandwich plates are applied to an external protection structure and an internal heat dissipation structure of the power battery pack, the impact resistance and thermal safety can be effectively improved, and therefore, the safety of a power battery and a passenger is ensured.

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 soft pack 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 have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/617H01M10/625H01M10/647H01M10/6555H01M10/6561
CPCH01M2220/20H01M10/613H01M10/617H01M10/625H01M10/647H01M10/6555H01M10/6561H01M50/20Y02E60/10
Inventor 王源隆于意赵万忠王春燕周冠
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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