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Electrode terminal and preparation method thereof, battery cover board assembly, battery, battery bank, battery pack and electric vehicle

An electrode terminal and battery cover technology, which is applied in electric vehicles, battery pack parts, electrical components, etc., can solve the problems of poor connection reliability and difficult welding, and can ensure the overcurrent capacity and connection strength, and ensure the connection reliability. Effect

Active Publication Date: 2016-07-20
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor connection reliability and difficult welding between dissimilar metals in bimetal pole welding, and provides electrode terminals and their preparation methods as well as battery cover components, batteries, battery packs, battery packs and electric vehicles

Method used

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  • Electrode terminal and preparation method thereof, battery cover board assembly, battery, battery bank, battery pack and electric vehicle
  • Electrode terminal and preparation method thereof, battery cover board assembly, battery, battery bank, battery pack and electric vehicle
  • Electrode terminal and preparation method thereof, battery cover board assembly, battery, battery bank, battery pack and electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This embodiment is used to illustrate the method for preparing an electrode terminal provided by the present invention.

[0050] Such as figure 2 As shown, the connector: the outer diameter of the positioning pin is 5.03mm, the length of the positioning pin is 6mm, the height of the transition zone is 5mm, the diameter of the outer connection area of ​​the insertion end is 10mm, and the length of the outer connection area of ​​the insertion end is 10mm; Terminal: The diameter of the mating area is 5.00mm, the depth of the mating area is 6cm, and the diameter of the inner connection area of ​​the socket is 12mm. Wherein, the depth of the interference region between the outer diameter of the positioning pin and the inner diameter of the matching area is 5 mm, and the interference amount is 0.03 mm.

[0051] Insert the positioning pin into the mating area, the gap between the outer connection area and the inner connection area is 1.5mm, perform electromagnetic pulse weld...

Embodiment 2

[0054] This embodiment is used to illustrate the method for preparing an electrode terminal provided by the present invention.

[0055] Such as figure 2 As shown, the connector: the outer diameter of the positioning pin is 3.00mm, the length of the positioning pin is 8mm, the height of the transition zone is 3mm, the diameter of the outer connection area of ​​the insertion end is 8mm, and the length of the outer connection area of ​​the insertion end is 15mm; Terminal: The diameter of the mating area is 3.04mm, the depth of the mating area is 10cm, and the diameter of the inner connection area of ​​the socket is 9mm. Wherein, the depth of the interference area between the outer diameter of the positioning pin and the inner diameter of the matching area is 3 mm, and the interference amount is 0.04 mm. The outer connection area of ​​the connector is parallel to the axis, and the inner connection area and the outer connection area form an included angle of 9°.

[0056] Insert ...

Embodiment 3

[0059] This embodiment is used to illustrate the method for preparing an electrode terminal provided by the present invention.

[0060] Such as figure 2 As shown, the connector: the outer diameter of the positioning pin is 8.05mm, the length of the positioning pin is 15mm, the height of the transition zone is 5mm, the diameter of the outer connection area of ​​the insertion end is 8mm, and the length of the outer connection area of ​​the insertion end is 20mm; Terminal: The diameter of the mating area is 8mm, the depth of the mating area is 10cm, and the diameter of the inner connection area of ​​the socket is 20mm. Wherein, the depth of the interference region between the outer diameter of the positioning pin and the inner diameter of the matching area is 10 mm, and the interference amount is 0.08 mm. The outer connection area of ​​the connector is parallel to the axis, and the inner connection area and the outer connection area form an included angle of 15°.

[0061] Inse...

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Abstract

The invention discloses an electrode terminal and a preparation method thereof, a battery cover board assembly, a battery, a battery bank, a battery pack and an electric vehicle. The electrode terminal comprises a connector (1) with an insertion end and a leading-out terminal (2) with a slot, wherein the insertion end comprises an external connection region, an extended positioning pin and a transition region (3); the transition region is connected with the external connection region and the positioning pin; the slot comprises an internal connection region, a free deformation region (6) and a matching region (5); the free deformation region (6) is located between the internal connection region and the matching region (5); the positioning pin passes through the internal connection region and the free deformation region (6) and is inserted into the matching region (5); the positioning pin and the matching region (5) are in interference fit; and the external connection region is connected with the internal connection region in an atom binding manner. The electrode terminal has dual connection; and the connection reliability of the connector and the battery is ensured.

Description

technical field [0001] The present invention relates to the field of batteries, in particular, to an electrode terminal, a method for preparing the electrode terminal, a single battery assembly including the electrode terminal, a battery cover assembly including the electrode terminal, and a battery cover assembly including the electrode terminal. A battery with an electrode terminal, a battery pack including the electrode terminal, a battery pack including the battery pack, and an electric vehicle including the battery pack. Background technique [0002] Large-scale battery packs need to connect the electrodes of multiple single cells in series or in parallel to obtain the required current or voltage, usually through metal sheets, and the positive and negative materials of the batteries are generally different, and the metal sheets are generally aluminum or copper. It will be difficult to weld with electrodes of dissimilar metals. [0003] At present, a bimetal pole made o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/30H01M2/04B60L11/18H01M50/147H01M50/547H01M50/552
CPCY02T10/70
Inventor 蒋露霞朱建华沈晞郑卫鑫鲁志佩朱燕
Owner BYD CO LTD
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