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Electrode texture structure of secondary lithium battery top cover

A technology of secondary lithium battery and bite-shaped structure, which is applied in structural parts, battery pack parts, circuits, etc., can solve the problems of inability, injection molding and sealing, and increase production cost input, so as to reduce production cost and achieve good joint sealing. Effect

Inactive Publication Date: 2021-06-04
武汉富航精密工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The electrode bite structure of the top cover of the secondary lithium battery proposed by the present invention solves the problem that the existing cover assembly package needs to be sealed by means of a sealing ring, which increases the production cost investment and cannot be directly injected and sealed.

Method used

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  • Electrode texture structure of secondary lithium battery top cover
  • Electrode texture structure of secondary lithium battery top cover
  • Electrode texture structure of secondary lithium battery top cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The electrode bite structure of the top cover of the secondary lithium battery includes a top cover plate 1 and an insulating support 9, and the two ends of the top cover plate 1 are provided with a first electrode terminal via hole 2 and a second electrode terminal via hole with the same structure 5. The outer edge of the first electrode terminal via hole 2 is provided with a first sunken part 201, and the surface of the first first sunken part 201 is provided with a first injection molding via hole 203, and the first electrode The outer edge of the terminal via hole 5 is provided with a second sunken portion 501, and the surface of the second sunken portion 501 is provided with a fourth injection molding via hole 503, and the first electrode terminal via hole 2 and the second electrode terminal via hole The first electrode terminal 7 and the second electrode terminal 8 are installed on the first first concave part 201 and the second concave part 501 of the hole 5 respe...

Embodiment 2

[0042] This embodiment differs from Embodiment 1 in that: no sealing ring is provided;

[0043]The electrode bite structure of the top cover of the secondary lithium battery includes a top cover plate 1 and an insulating support 9, and the two ends of the top cover plate 1 are provided with a first electrode terminal via hole 2 and a second electrode terminal via hole with the same structure 5, and the outer edge of the first electrode terminal via hole 2 is provided with a first sunken portion 201, and the two side surfaces of the first sunken portion 201 are provided with uniformly distributed first textured grooves 202, and The inside of the first textured groove 202 is provided with a first injection molding via hole 203 at intervals, and fourth textured grooves 502 evenly distributed are opened on the two side surfaces of the second concave part 501, and the fourth textured groove 502 The fourth injection molding via hole 503 is separated inside the bite pattern groove 50...

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PUM

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Abstract

The invention discloses an electrode texture structure of a secondary lithium battery top cover. The electrode texture structure comprises a top cover plate and an insulating support, and a first electrode terminal via hole and a second electrode terminal via hole with the same structure are formed in two ends of the top cover plate; a first electrode terminal and a second electrode terminal are installed on a first concave part of the first electrode terminal via hole and a second concave part of the second electrode terminal via hole respectively, second texture grooves are formed in the first electrode terminal, and third texture grooves are formed in the second electrode terminal; third injection molding via holes are formed between the third texture grooves, and a first fixing piece and a second fixing piece are formed through second injection molding via holes and third injection molding via holes in an injection molding mode. According to the invention, the texture grooves are formed, so that the tensile force between the fixing pieces and the electrode terminals can be increased after the grooves are wrapped by colloid; and tight inverted texture grooves are annularly arranged, so that the joint sealing performance of the fixing pieces and the surfaces of the electrode terminals is better, a sealing ring part can be replaced, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of the top cover of the secondary lithium battery, in particular to an electrode scratch structure of the top cover of the secondary lithium battery. Background technique [0002] The development and utilization of secondary lithium batteries are related to the continuous development of new energy technologies. As the current clean energy, the development and utilization of electric power is a long-term strategic goal. In the process of assembling and packaging the secondary lithium battery, there are certain deficiencies in the traditional packaging cover plate assembly and the corresponding assembly method. The cover plate assembly package is only sealed with a sealing ring, which has poor sealing performance for the liquid inside the secondary lithium battery. To solve these problems, we propose an electrode bite pattern structure for the top cover of secondary lithium batteries. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/559H01M50/188H01M50/15
CPCY02E60/10
Inventor 陈中元
Owner 武汉富航精密工业有限公司