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Connection method for super-capacitor current collector and metal housing, and device therefor

A technology of supercapacitors and metal casings, which is applied in the manufacture of hybrid boxes/casings/packages and hybrid/electric double-layer capacitors. Low, low leakage rate, small welding deformation effect

Inactive Publication Date: 2015-10-07
HUNAN NEPUENERGY SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These deficiencies lead to poor reliability of external ultrasonic welding, low welding strength, large internal resistance, etc., which affect high-power charging and discharging
[0007] The production failure rate of these two methods is very high, and there are still limitations in the use of supercapacitors, so it is imperative to use advanced welding technology to produce supercapacitors

Method used

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  • Connection method for super-capacitor current collector and metal housing, and device therefor
  • Connection method for super-capacitor current collector and metal housing, and device therefor
  • Connection method for super-capacitor current collector and metal housing, and device therefor

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Embodiment Construction

[0032] The patent of the present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.

[0033] see image 3 and Figure 4 , the device provided by the present invention to realize the connection method of the supercapacitor current collector and the metal casing, the frame 6 is provided with an eight-station rotating mechanism 5 and a vacuum welding chamber 9, and the eight-station rotating mechanism 5 is provided with a supercapacitor fixing fixture 11 and the supercapacitor fixing fixture 11 is arranged in the vacuum welding chamber 9, the supercapacitor 10 is installed on the supercapacitor fixing fixture 11, the vacuum welding chamber 9 is connected with a vacuum exhaust hole 7, and also includes an electron beam welding torch 8 and an electron beam welding torch 8 It can extend into the vacuum welding chamber 9 and the electron beam torch 8 and the vacuum welding chamber 9 adopt a sealed structure.

[0034...

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Abstract

The invention discloses a connection method for a super-capacitor current collector and a metal housing, and a device therefor. The method is characterized in that 1), a current collector of the supercapacitor is welded with the metal housing through vacuum electron beam welding; 2) the current collector is provided with an arc-shaped outer edge, thereby guaranteeing the close fit of the metal housing with the current collector, and carrying out the circumferential continuous penetration melting welding in a vacuum environment through the vacuum electron beam welding technology. The method solves problems of liquid leakage, loosened welding, loosening easiness, big internal resistance, high self-discharge, and severe scraping because of a connection mode of a current collector and the metal housing in a current industry, and effectively reduces the production cost. The method and device are simple in technology, are reliable in connection, are easy to assemble, are good in sealing effect, and are novel.

Description

technical field [0001] The invention relates to a method for connecting a supercapacitor current collector and a metal casing, and also relates to a device for realizing the method for connecting a supercapacitor current collector and a metal casing. technical background [0002] Supercapacitor is a new type of energy storage device. It has many advantages such as green environmental protection, high power density, fast charge and discharge speed, long cycle life, and wide temperature range. It has been widely used in automobiles, urban light rail, subways, and military industries. , UPS, heavy industrial equipment and other fields. [0003] Supercapacitor is a new type of energy storage device widely used. The key lies in the equivalent DC internal resistance (hereinafter referred to as ESR). ESR is mainly composed of electrode material internal resistance, electrolyte internal resistance, contact internal resistance, etc. It represents the power consumed by the internal h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/84H01G11/82
CPCY02E60/13H01G11/84H01G11/82
Inventor 刘继波黄浩宇谢佼易芳
Owner HUNAN NEPUENERGY SCI & TECH
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