Electric connection assembly of lithium battery

A technology for electrical connection components and connectors, which is applied to battery pack parts, electrical components, circuits, etc., can solve problems such as low yield rate and easy cracks in products, and achieve high yield rate of production, ensure overcurrent capability, The effect of meeting the assembly requirements

Active Publication Date: 2017-05-31
芜湖天量电池系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The copper-aluminum connection in the prior art generally adopts torque ultrasonic welding, but the welded products are prone to cracks, and the yield rate is not high

Method used

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  • Electric connection assembly of lithium battery
  • Electric connection assembly of lithium battery
  • Electric connection assembly of lithium battery

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Please refer to Figure 1 to Figure 4 , Embodiment 1 of the present invention is:

[0033] An electrical connection assembly for a lithium battery, comprising a first connector 1, a second connector 2 and a welding layer, the first connector 1 is made of copper, preferably T2 copper, and the second connector 2 is The material is aluminum alloy, such as 5005-H38 aluminum alloy, which has good electrical conductivity and high strength. The first connector 1 includes a first connecting piece 12 and a second connecting piece 13, the first connecting piece 12 is connected to the second connecting piece 13, and the connection between the first connecting piece 12 and the second connecting piece 13 is In a stepped structure, the second connecting piece 13 is provided with a connecting hole 11 . The surface of the first connecting piece 12 is provided with a plating layer, and the material of the plating layer is gold, silver, nickel or tin. The first connection piece 12 is ...

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Abstract

The invention discloses an electric connection assembly of a lithium battery. The electric connection assembly comprises a first connecting piece, a second connecting piece and a welding layer, wherein at least one connecting hole is formed in the first connecting piece; one end of the second connecting piece is inserted in the connecting hole and is riveted with the first connecting piece; the second connecting piece is electrically connected with a cell pole of the lithium battery to be connected; the welding layer is arranged between the other end of the second connecting piece and the first connecting piece; and the first connecting piece is electrically connected with the output terminal of the lithium battery to be connected. According to the electric connection assembly of the lithium battery provided by the invention, the assembling requirement of the lithium battery can be met, the overcurrent capacity of the electric connection assembly can be guaranteed, and meanwhile the production yield is high.

Description

technical field [0001] The invention relates to the technical field of lithium battery accessories, in particular to an electrical connection assembly of a lithium battery. Background technique [0002] At present, in the new energy lithium battery industry, it is generally necessary to connect multiple lithium batteries in series and parallel to form a module for use. Lithium battery poles are generally made of aluminum and aluminum (both positive and negative poles are made of aluminum); when the batteries inside the lithium battery module are connected in series and parallel, aluminum sheets are generally used for connection, because the aluminum sheet and the battery pole are Same material, easy to weld. When the lithium battery module is packaged, the connection between the module and the module or between the module and the output port generally uses a bolt to lock the output copper sheet, because the output pole of the module will collect a large current, and the alu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/20
CPCH01M50/502Y02E60/10
Inventor 郑凯李远华姚峰黄冬林徐敏
Owner 芜湖天量电池系统有限公司
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