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

A lithium battery explosion-proof valve structure and its processing technology

A technology for lithium batteries and explosion-proof valves, which is applied to structural parts, battery pack parts, battery boxes/coatings, etc., can solve the problems of unreliable welding of lithium battery shells and explosion-proof membranes, and achieve improved safety, reduced area, Good sealing effect

Active Publication Date: 2018-03-27
YIXING HUIHUA COMPOSITE MATERIAL CO LTD
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides a lithium battery explosion-proof valve structure and its processing technology, which can solve the problem of unreliable welding between the lithium battery shell and the explosion-proof membrane, has a good sealing effect, and improves the stability of the explosion-proof valve structure. Improved safety of lithium batteries

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A lithium battery explosion-proof valve structure and its processing technology
  • A lithium battery explosion-proof valve structure and its processing technology
  • A lithium battery explosion-proof valve structure and its processing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: as image 3 , 4 , 5, and 6, the explosion-proof valve structure of a lithium battery of the present invention includes a lithium battery housing. In this embodiment, the lithium-lithium battery housing is an aluminum alloy housing, and the lithium battery housing includes an explosion-proof valve area 3. The lithium battery case includes a case 1 and a cover plate 2. The explosion-proof valve area 3 can be set on the shell 1 or the cover plate 2. In the figure, it is set on the cover plate 2. The explosion-proof valve area 3 is compounded with adhesive Layer 4. In this embodiment, the adhesive layer 4 is a low-melting aluminum alloy layer. In the explosion-proof valve area 3, there are through holes 5 that pass through the lithium battery casing and the adhesive layer 4 respectively. In the explosion-proof valve area 3, The upper end of adhesive layer 4 is covered with explosion-proof membrane 6, and explosion-proof membrane 6 comprises aluminum metal lay...

Embodiment 2

[0021] Embodiment 2: as image 3 , 4 As shown in , 5 and 6, the explosion-proof valve structure of the lithium battery includes a lithium battery casing. In this embodiment, the lithium-lithium battery casing is a steel casing, the lithium battery casing includes an explosion-proof valve area 3, and the lithium battery casing includes a casing 1 and the cover plate 2, the explosion-proof valve area 3 can be set on the shell 1 or on the cover plate 2. In the figure, it is set on the cover plate 2, and the explosion-proof valve area 3 is compounded with an adhesive layer 4. In this embodiment The adhesive layer 4 is a low melting point steel metal layer, and in the explosion-proof valve area 3, there are through holes 5 that pass through the lithium battery case and the adhesive layer 4 respectively, and in the explosion-proof valve area 3, the upper end of the adhesive layer 4 covers There is an explosion-proof membrane 6, and the explosion-proof membrane 6 includes a steel me...

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 provides a lithium battery explosion-proof valve structure and its processing technology, which can solve the problem of unreliable welding of the lithium battery shell and the explosion-proof film, has good sealing effect, improves the stability of the explosion-proof valve structure, and improves the lithium battery The safety of the lithium battery includes a lithium battery case, and the lithium battery case includes an explosion-proof valve area, which is characterized in that: an adhesive layer is compounded on the explosion-proof valve area, and the explosion-proof valve area is provided with a The lithium battery casing and the through hole of the adhesive layer, in the explosion-proof valve area, the upper end of the adhesive layer is covered with an explosion-proof film.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to an explosion-proof valve structure of lithium batteries and a processing technology thereof. Background technique [0002] Lithium battery is a green and environmentally friendly new energy storage component. It has good high-current discharge performance and high energy density, green environmental protection, high energy density, and long service life. Communications, household appliances, military industry, aerospace and other fields have a wide range of applications. However, once the lithium battery is overcharged or overdischarged, or subjected to severe impact, it will release a large amount of gas and heat, so that the gas inside the single battery in a sealed environment will expand and the temperature will rise. In severe cases, an explosion accident will occur. [0003] At present, most lithium batteries are equipped with an explosion-proof valve structure t...

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): H01M2/02H01M2/12H01M10/058H01M50/10H01M50/30H01M50/383
CPCH01M10/058H01M50/10H01M50/30H01M50/383Y02E60/10Y02P70/50
Inventor 谢振华
Owner YIXING HUIHUA COMPOSITE MATERIAL CO LTD