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A kind of aluminum plate for new energy battery and preparation method thereof

A new energy and battery technology, applied in battery electrodes, non-aqueous electrolyte battery electrodes, circuits, etc., can solve the problems of complex copper-clad aluminum structure processing procedures, loose battery terminals and connecting parts, complex structure and manufacturing process, etc. To achieve the effect of improving density and stability, enhancing electrical conductivity, reducing production cost and processing difficulty

Active Publication Date: 2020-12-11
蚌埠金实科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. When the vehicle has a large impact, collision, etc., frictional damage or disconnection will occur between the functional components and the wires in the mechanism and between the connecting parts due to displacement and pulling;
[0004] 2. Since the connecting parts used to connect the batteries in series and parallel are directly attached to the battery terminals, the battery terminals and the connecting parts are relatively loose, and the assembly reliability is poor, requiring positioning tools or manual assistance to complete the assembly;
[0005] 3. Some of the connection parts adopt copper-clad aluminum structure. The purpose is to enhance the yield strength of the connection parts, improve the mechanical strength of the connection parts, and improve the transmission efficiency and service life of the entire power battery, but there are also some problems, such as : (3.1) The processing procedure of the copper-clad aluminum structure is complicated, (3.2) the cost of copper is much higher than that of aluminum, and the introduction of copper increases the cost of the product, (3.3) Since the mechanical properties and strength of copper-clad aluminum are relatively Aluminum has been greatly improved, which also increases the processing strength and difficulty when processing copper-clad aluminum materials. Due to the relatively complicated structure and manufacturing process, the cost is relatively high

Method used

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  • A kind of aluminum plate for new energy battery and preparation method thereof
  • A kind of aluminum plate for new energy battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 and figure 2 As shown, an aluminum plate used for new energy batteries includes two aluminum plates, the two aluminum plates are stacked, and several rows of solder joints are welded. The upper aluminum plate 1 of the two aluminum plates is punched to form a U-shaped groove 2 . The U-shaped groove of the upper aluminum plate is a non-through groove. When the upper aluminum plate is stamped, the lower aluminum plate 3 is located under the upper aluminum plate.

[0037] With the depletion of petroleum energy and people's higher and higher requirements for environmental protection, electric vehicles or hybrid vehicles will play an important role in the camp of land vehicles. As the core power source of electric vehicles - power battery, its safety, reliability and other indicators are particularly important. Since the vehicle-mounted power battery is composed of dozens, hundreds or even thousands of batteries connected in series and parallel, the conne...

Embodiment 2

[0040] The structure of this embodiment is basically the same as that of Embodiment 1, and the similarities will not be repeated. The difference is that this application also discloses an aluminum plate for new energy batteries, which includes the following steps:

[0041] (1) Preliminary treatment, turning off the oxide skin on the surface of the aluminum ingot;

[0042] (2) heating the preliminarily treated aluminum ingot to 700°C to 720°C to obtain molten aluminum in a molten state for subsequent use;

[0043] (3) Lead the molten aluminum in step (2) into the extrusion cylinder, and advance to the product mold at an extrusion speed of 0.2m / min to 0.3m / min, and extrude the molten aluminum, Extruding the aluminum liquid from the die hole of the product mold to form the aluminum plate body;

[0044] (4) Compact the aluminum plate body in step (3) with a press machine until the thickness is 1-2mm;

[0045] (5) stamping the aluminum plate body in step (4) by using a press and ...

Embodiment 3

[0057] The structure of this embodiment is basically the same as that of Embodiment 1, and the similarities will not be repeated. The difference is that this application also discloses an aluminum plate for new energy batteries, which includes the following steps:

[0058] (1) Preliminary treatment, turning off the oxide skin on the surface of the aluminum ingot;

[0059] (2) heating the preliminarily treated aluminum ingot to 700°C to 720°C to obtain molten aluminum in a molten state for subsequent use;

[0060] (3) Lead the molten aluminum in step (2) into the extrusion cylinder, and advance to the product mold at an extrusion speed of 0.2m / min to 0.3m / min, and extrude the molten aluminum, Extruding the aluminum liquid from the die hole of the product mold to form the aluminum plate body;

[0061] (4) Compact the aluminum plate body in step (3) with a press machine until the thickness is 1-2mm;

[0062] (5) stamping the aluminum plate body in step (4) by using a press and ...

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Abstract

The invention relates to the technical field of new energy batteries, in particular to a stamping type integrated electrode plate and a preparation method thereof. The stamping type integrated electrode plate comprises two aluminum plates, two aluminum plates are overlapped, a plurality of rows of welding points are welded, and an upper-layer aluminum plate in the two aluminum plates is stamped toform a U-shaped groove. In the application, the two aluminum plates are connected through the welding points, but are easy to loosen for a long time, the upper-layer aluminum plate is stamped to thesurface of the lower-layer aluminum plate, the compactness of the aluminum plate at the stamping position is increased, meanwhile, the U-shaped groove at the stamping position is a non-through groove,and the lower-layer aluminum plate is embedded at the stamping position of the U-shaped groove to enhance connectivity.

Description

Technical field: [0001] The invention relates to the technical field of new energy batteries, in particular to an aluminum plate used for new energy batteries and a preparation method thereof. Background technique: [0002] With the depletion of petroleum energy and people's higher and higher requirements for environmental protection, electric vehicles or hybrid vehicles will play an important role in the camp of land vehicles. As the core power source of electric vehicles - power battery, its safety, reliability and other indicators are particularly important. Since the on-board power battery is composed of dozens, hundreds or even thousands of batteries connected in series and parallel, the connection terminals connecting each battery are generally directly fixed by screws, and the following situations will be encountered in long-term use: [0003] 1. When the vehicle has a large impact, collision, etc., frictional damage or disconnection will occur between the functional...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/13H01M4/139
CPCH01M4/13H01M4/139Y02E60/10
Inventor 张二群杨魁刘长翠
Owner 蚌埠金实科技有限公司