Unlock instant, AI-driven research and patent intelligence for your innovation.

A pole welding method for a nickel-hydrogen storage battery

A welding method and a technology of nickel-hydrogen batteries, which are applied in electron beam welding equipment, welding equipment, welding/welding/cutting items, etc., can solve the problems such as the undiscovered high-voltage nickel-hydrogen battery pole welding process patents, and achieve easy program control , flexible control, and easy-to-automate effects

Inactive Publication Date: 2011-11-30
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Through the search, no patent was found for the welding process of the pole of the high-voltage nickel-hydrogen battery

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0017] A method for welding a nickel-hydrogen battery pole, the steps are:

[0018] (1) Equipment preparation: According to the requirements of the equipment operation regulations, the preparation work before welding of the vacuum electron beam welding machine should be done, that is, the water and electricity inspection, the lens inspection, the energy test, and the trial operation of the workbench and fixtures.

[0019] (2) Demagnetization of the sample: match the battery cover with the same specification and material as the nickel-hydrogen battery to be welded with the pole, position it with a laser, demagnetize the sample with a demagnetizer, and measure the magnetic flux density with a magnetometer, which should be less than 1 ×10 -4 T...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for welding a pole post of a hydrogen-nickel battery. The steps are: (1) equipment preparation; (2) sample demagnetization; (3) sample welding; (4) pole post welding; (5) inspection of the finished product. The welding method adopts the vacuum electron beam welding method, that is, the welding is carried out in a vacuum, the metal will not be oxidized or nitrided, and generally no metal is filled during welding, which ensures the high purity of the weld metal, improves the welding quality of the pole, and at the same time Improve the pass rate. The welding parameters of the vacuum electron beam method can be adjusted in a wide range, the control is flexible, the precision is high, and the adaptability is strong.

Description

technical field [0001] The invention belongs to the technical field of high-voltage nickel-hydrogen batteries, and relates to a method for welding poles of nickel-hydrogen batteries. Background technique [0002] The negative electrode active material of the nickel-hydrogen battery is hydrogen, and the pressure of hydrogen varies between 0 and 6.0MPa. After charging, the case is a high-pressure container. If the case is not well sealed, the leakage of hydrogen will directly lead to the decline of battery capacity. In addition, the welding of the battery pole is an important process to ensure the sealing of the battery case. Generally, laser or sub-arc welding is used for the welding of the pole of the high-pressure vessel. Because the welding position of the battery pole is hidden, the welding energy stability is not strong, and the pole The welding quality is not optimistic. The vacuum electron beam welding heat source has high energy density, good penetration depth, fast ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23K15/06B23K101/36
Inventor 檀立新樊红敏任学颖周春亮罗云飞陈军王志飞赵宏伟
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST