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Production method of battery cover plate provided with explosion-proof structure

A battery cover, explosion-proof structure technology, applied in the direction of battery cover/end cover, structural parts, battery pack components, etc., can solve the problems of complex processing methods, unstable battery performance, easy liquid leakage, etc., to achieve stable explosion-proof performance , good insulation, cost-saving effect

Active Publication Date: 2016-03-16
广东九九华立新材料股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above technical problems, the present invention provides a method for manufacturing a battery cover plate with an explosion-proof structure, which solves the existing technical problems such as complex processing methods, easy liquid leakage, and unstable battery performance.

Method used

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  • Production method of battery cover plate provided with explosion-proof structure
  • Production method of battery cover plate provided with explosion-proof structure
  • Production method of battery cover plate provided with explosion-proof structure

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Embodiment Construction

[0029] In order to allow those skilled in the art to better understand the technical solution of the present invention, the present invention will be further elaborated below.

[0030] as attached figure 1 , 2 , 3, a battery cover assembly with an explosion-proof structure, including a cover body 1, two through holes 2 and an exhaust hole 3 are opened on the cover body, and a battery terminal 4 is arranged on the through hole , an explosion-proof structure 5 is provided on the exhaust hole.

[0031] The electrode terminal includes an electrode column 41 passing through the through hole. The electrode column 41 includes a base 411 and a hollow cylinder 412. The hollow cylinder is arranged on the base. The hollow cylinder passes through the through hole of the steel cover plate and is exposed on the steel cover plate. The base is located on Below the through hole of the steel cover plate, the diameter of the base is larger than the diameter of the through hole, and the maximum...

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Abstract

The invention discloses a production method of a battery cover plate provided with an explosion-proof structure. The production method comprises installation of an electrode terminal and installation of the explosion-proof structure. The production method specifically comprises the following steps of preparing parts; punching on a cover plate body to form a vent hole and an electrode through hole; installing an explosion-proof valve body; installing a lower protection film structure; installing an explosion-proof membrane structure; installing an upper protection film structure; nesting an electrode sealing ring into an electrode column; installing lower ceramic; nesting the electrode column into the cover plate body; putting upper ceramic and a snap spring in sequence; and carrying out vertical encapsulation, sealing and stabilizing treatment on the electrode terminal. The invention provides the production method of the battery cover plate provided with the explosion-proof structure, the method has a simple process, each step is easy to control, the battery cover plate has good overall sealing property and insulating property, the leakage phenomenon cannot occur, the produced battery cover plate has stable explosion-proof property, the overall performance stability of a battery is improved, the reject ratio of the battery in a production process is reduced and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of battery cover production, in particular to a method for producing a battery cover with an explosion-proof structure. Background technique [0002] Nowadays, electronic products have spread to various industries and fields, and are also a necessity for daily household. Due to the high capacity and load characteristics of lithium-ion steel-cased fully enclosed batteries and their batteries, lithium-ion batteries are widely used. With the continuous development of power technology, the current power battery has the advantages of small size, large capacity and high power. At present, the production method of the power lithium battery cover plate is to seal and insulate the electrode terminal and the cover plate body by injection molding. For the explosion-proof structure, a central positioning step hole is punched on the cover plate body, and then the stepped hole Welding or riveting the explosion-proof mem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/04H01M2/12H01M50/147H01M50/342
CPCH01M50/147H01M50/383H01M50/30Y02E60/10
Inventor 慈晟
Owner 广东九九华立新材料股份有限公司
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