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High-strength material for flexible connection of new energy power battery and manufacturing method of high-strength material

A power battery and manufacturing method technology, which is applied in the field of aluminum foil calendering manufacturing, can solve the problems of poor electrical conductivity of battery packs, and achieve the effects of good pattern and surface end surface quality, stress relief, and good flexible electrical conductivity

Active Publication Date: 2020-06-09
JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to eliminate the problem of poor electrical conductivity of the battery pack caused by the loosening and breaking of fasteners caused by vibration during the operation of new energy power battery vehicles, this invention aims to develop a new type of aluminum foil soft connection material with high strength and good plasticity

Method used

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Experimental program
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Effect test

Embodiment 1

[0034] The invention relates to a high-performance air-conditioning foil and its manufacturing method. Firstly, its composition and mass percentage are controlled as follows: Si 0.26%, Fe 0.55%, Cu 0.09%, Mn 1.12%, Zn 0.011%, Ti 0.027%, I The amount is Al.

[0035] According to the above-mentioned composition control, the soft connection aluminum foil material is further obtained, and the specific preparation steps are as follows:

[0036] (1) Smelting: the raw materials are fully stirred evenly during smelting, the smelting temperature is 745°C, and the special refining agent is refined at 745°C for 20 minutes during smelting, and the furnace is reversed after the composition adjustment meets the control requirements of the present invention, and the furnace temperature is 750°C;

[0037] (2) Casting and rolling: during casting and rolling production, the temperature of the degassing box is controlled at 725°C, the air flow rate is controlled at 1.0m3 / h, the rotor speed is co...

Embodiment 2

[0045] The invention relates to a high-performance air-conditioning foil and its manufacturing method. Firstly, its composition and mass percentage are controlled as follows: Si 0.27%, Fe 0.49%, Cu 0.10%, Mn 1.15%, Zn 0.016%, Ti 0.021%, I The amount is Al.

[0046] According to the above-mentioned composition control, the soft connection aluminum foil material is further obtained, and the specific preparation steps are as follows:

[0047] (1) Smelting: the raw materials are fully stirred evenly during smelting, the smelting temperature is 745°C, and the special refining agent is refined at 745°C for 20 minutes during smelting, and the furnace is reversed after the composition adjustment meets the control requirements of the present invention, and the furnace temperature is 750°C;

[0048] (2) Casting and rolling: during casting and rolling production, the temperature of the degassing box is controlled at 725°C, the air flow rate is controlled at 1.0m3 / h, the rotor speed is co...

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Abstract

The invention belongs to the technical field of aluminum foil calendering manufacturing, and discloses a high-strength material for flexible connection of a new energy power battery and a manufacturing method of the high-strength material. The material comprises the following components of, in percentage by mass, 0.20%-0.30% of Si, 0.40%-0.60% of Fe, 0.08%-0.12% of Cu, 1.05%-1.20% of Mn, smaller than or equal to 0.05% of Zn, smaller than or equal to 0.03% of Ti and the balance Al; and the technological process comprises the steps of smelting, cast rolling, rough rolling, intermediate homogenizing annealing, intermediate rolling trimming, finished product finish rolling, withdrawal and straightening cleaning, slitting, finished product annealing and the like. The product and the method havethe advantages of being high in strength, good in forming plasticity, good in model and surface end surface quality and good in flexible electric conduction effect, and the problem of poor conductivity of a battery pack caused by looseness and breakage of a fastener due to vibration in the running process of an automobile can be solved.

Description

technical field [0001] The invention relates to a high-strength new energy power battery flexible connection material and a manufacturing method thereof, belonging to the technical field of aluminum foil calendering manufacturing. Background technique [0002] In recent years, the development of the automobile industry has ushered in major changes, and the output of new energy vehicles has gradually increased. At the same time, the rapid development of the new energy automobile industry has also driven the rapid development of the power battery industry. Soft connection materials are important components for the connection of new energy vehicle batteries, lithium-ion batteries, power batteries, etc., and customers have higher and higher requirements for their raw materials. At present, the raw materials of soft connectors mainly use copper foil or pure aluminum foil. From the perspective of cost and light weight, it is a general trend to replace red copper foil with aluminum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22F1/04H01M2/20
CPCC22C21/00C22F1/04H01M50/502Y02E60/10
Inventor 田国建李高林张明成朱江文吴保剑曾元
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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