Liquid injection hole sealing method for satellite lithium-ion battery
A technology of lithium-ion batteries and liquid injection holes, which is applied in the manufacture of battery pack parts, non-aqueous electrolyte batteries, electrolyte batteries, etc., can solve the problems of air holes and organic pollution of joints, and achieve avoidance of organic pollution, strong adaptability, and easy operation simple effect
Active Publication Date: 2017-06-09
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Aiming at the problems in the prior art that gas expands and escapes during welding and sealing to form air holes and joint organic matter pollution, the invention provides a liquid injection hole sealing method for lithium-ion batteries used in satellites
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The following is a detailed description of the embodiments of the present invention: this embodiment is implemented on the premise of the technical solution of the present invention, and gives detailed implementation and specific operation procedures, but the protection scope of the present invention is not limited to the following implementations example.
[0024] Such as figure 1 As shown, the method for sealing a liquid injection hole of a lithium ion battery for a satellite provided in this embodiment includes the following steps:
[0025] The first step is to machine threads on the inner surface of the injection hole 1 and the inner surface of the port 2;
[0026] The second step is to process the stud 3. The thread size of the stud 3 matches the size of the internal thread of the injection hole 1. The material of the stud 3 is the same or similar to the battery shell or the same alloy or does not affect the battery performance. High temperature resistant polymer materi...
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
Login to View More Abstract
The invention relates to a method for sealing a liquid injection hole of a lithium-ion battery for a satellite, comprising: the first step, processing threads inside the liquid injection hole and the inner surface of the port; the second step, processing studs; and the third step, screwing the studs Screw into the battery liquid injection hole; the fourth step is to process 1 to 5 round soft metal thin gaskets; the fifth step is to insert the processed metal gasket into the liquid injection hole port; the sixth step is to process the tape Threaded welding stopper; the seventh step is to screw the threaded welding stopper into the port of the injection hole and tighten it, requiring the lower surface of the welding stopper to press the metal gasket tightly; the eighth step is to use argon tungsten arc welding Welding is performed to weld the stopper rod and port together to seal the cell. The liquid injection hole sealing method of satellite lithium-ion batteries provided by the invention effectively solves the problem that the liquid injection hole cannot be sealed due to the volatilization of the electrolyte during the welding process, and the thermal expansion of the gas breaks through the weld seam. The method is simple in operation and strong in adaptability.
Description
Technical field [0001] The invention relates to the field of welding, in particular to a method for sealing a liquid injection hole of a lithium ion battery for satellites. Background technique [0002] Because of its high energy density (light weight), high working voltage, lithium-ion batteries do not have the "memory effect" of traditional cadmium nickel / hydrogen nickel batteries, high power ratio, good discharge performance, long cycle life, and no pollution. It has demonstrated broad application prospects in space technology and national defense industry, and is a key energy supply component for my country's future military satellites. [0003] The satellite lithium-ion battery cell shell is made of 5A06 aluminum alloy. After the cell is inserted into the shell, the battery cover and the shell are sealed by argon arc welding. The entire battery is isolated from the outside world except for the circular injection hole on the battery cover. . After the battery cover is welded, ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/058H01M2/36H01M50/636
CPCH01M50/636Y02E60/10Y02P70/50
Inventor 尹玉环姚君山黄征陈春刁海波
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY