Tab connection assembly and secondary battery

A technology for connecting components and tabs, which is applied in the field of tab connection components and secondary batteries, which can solve problems affecting the electrical performance of the battery cell, virtual welding, etc., and achieve the effect of simple and reliable structure, high safety performance, and guaranteed electrical connection performance

Active Publication Date: 2016-05-18
JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the total thickness that can be welded by ultrasonic welding has a certain limit, especially when the welding thickness is greater than 2-3mm, there will be poor welding such as virtual welding, which will affect the electrical performance of the battery core.

Method used

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  • Tab connection assembly and secondary battery
  • Tab connection assembly and secondary battery
  • Tab connection assembly and secondary battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present application will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings. The terms "front", "rear", "left", "right", "upper" and "lower" mentioned in the text refer to the placement state of the tab connection assembly and the secondary battery in the drawings.

[0043] Such as Figure 1 to Figure 5 As shown, the embodiment of the present application provides a tab connection assembly, including a pin 10 and a clamping member 20, the pin 10 includes a connecting portion 101 and two conductive portions 102, and the two conductive portions 102 are arranged on the connection The two sides of the conductive part 101 are connected to the connecting part 101. The two conductive parts 102 are provided with bonding areas on the opposite sides. The spacing between the conductive parts 102, the conductive part 102 tends to shrink toward the tab when the bonding area is bonded to the side of the tab. The cl...

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PUM

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Abstract

The invention relates to the production field of secondary batteries and particularly relates to a tab connection assembly and a secondary battery. The tab connection assembly comprises a pin and a clamping part, wherein the pin comprises a connection part and two conductive parts; the two conductive parts are arranged on the two sides of the connection part and are connected with the connection part; fitting regions are arranged on opposite side faces of the two conductive parts; the conductive parts can rotate around connected parts of the conductive parts and the connection part so that the distance between the two conductive parts is changed; when the fitting regions are fitted with the side face of a tab, the conductive parts are prone to be retracted towards the direction of the tab; the clamping part comprises a fixed part and two clamping parts; the two clamping parts are arranged on the two sides of the fixed part and are connected with the fixed part; one end, which is far away from the connection part, of each of the two conductive parts can stretch into the space between the two clamping parts and is tightly clamped by the two clamping parts; and the clamping parts are prone to be retracted towards the direction of the conductive parts. The tab connection assembly is simple and reliable in structure, and has no limitation on the pin thickness.

Description

technical field [0001] The present application relates to the technical field of secondary battery production, in particular to a tab connection assembly and a secondary battery. Background technique [0002] At present, secondary batteries have been widely used in portable electronic devices such as mobile phones, digital cameras, and laptops due to their advantages such as high energy density, high power density, high cycle times, and long storage time. Electric vehicles such as electric bicycles and large and medium-sized electric equipment such as energy storage facilities have broad application prospects. This application of lithium-ion batteries has contributed to solving the energy crisis and environmental pollution. [0003] With the improvement of electric vehicle technology, electric vehicles and hybrid vehicles are getting closer to people's daily life. At the same time, electric vehicles have put forward higher requirements for the safety performance of lithium-i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/20H01M10/04H01M50/502H01M50/514H01M50/531
CPCH01M10/04H01M2200/00H01M50/502Y02E60/10Y02P70/50
Inventor 邢承友郑于炼邓平华王鹏郭志君
Owner JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
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