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Power type lithium battery cap structure

An electric cap, power technology, applied in structural parts, circuits, electrical components, etc., can solve the problems of low safety factor and affect the performance of lithium batteries, and achieve the effect of strong explosion-proof capability, ingenious structural design, and high sealing performance.

Pending Publication Date: 2017-01-04
奕东电子科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Especially for the explosion-proof combination cap structure, the current explosion-proof combination cap structure is relatively simple, the safety factor is low, and it also affects the performance of the lithium battery

Method used

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  • Power type lithium battery cap structure
  • Power type lithium battery cap structure
  • Power type lithium battery cap structure

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 , 2 , 3, a power-type lithium battery cap structure, including a sealing ring 1, and a connecting aluminum sheet 2, an insulating rubber ring 3, an explosion-proof aluminum sheet 4, a supporting ring 5 and an electrode arranged in the sealing ring 1 in sequence from bottom to top Cap 6; the sealing ring 1 is in the shape of a groove with an opening at the bottom, the connecting aluminum sheet 2 covers the opening, and the edge flange 9 connecting the aluminum sheet 2 is erected on the edge of the opening; the explosion-proof aluminum sheet 4 The center is provided with a central protruding part 7 that protrudes to the connecting aluminum sheet 2 and is pressed tightly. The edge of the explosion-proof aluminum sheet 4 is wrapped upwards 8 to wrap the edge of the electrode cap 6; the supporting ring 5 is connected to the electrode cap 6...

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PUM

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Abstract

The invention discloses a power type lithium battery cap structure. The power type lithium battery cap structure comprises a seal ring as well as a connecting aluminum sheet, an insulation rubber ring, an explosion-proof aluminum sheet, a support ring and an electrode cap which are arranged in the seal ring from bottom to top sequentially, wherein the seal ring is groove-shaped and is provided with an opening in the bottom, the opening is covered with the connecting aluminum sheet, and an end flanging of the connecting aluminum sheet is erected at the edge of the opening; a central bulging part bulging towards the connecting aluminum sheet is arranged in the center of the explosion-proof aluminum sheet and presses tightly, and the upward covered edge of the explosion-proof aluminum sheet wraps the edge of the electrode cap; the support ring is supported between the electrode cap and the explosion-proof aluminum sheet, and an extruding part extruding to the outside is arranged in the middle of the electrode cap.

Description

technical field [0001] The invention relates to the technical field of lithium battery accessories, in particular to a power type lithium battery cap structure. Background technique [0002] At present, lithium batteries are usually used in combination in multiple series. In this way, the total energy of the battery is large, and there is a hidden danger of overcharging of a single battery or the entire battery pack during charging. When the lithium battery is overcharged, the battery The voltage rises rapidly with the increase of polarization, which will cause irreversible changes in the structure of the positive active material and the decomposition of the electrolyte, generating a large amount of gas and releasing a large amount of heat, causing the battery temperature and internal pressure to increase sharply, and there are hidden dangers such as explosion and combustion. The safety of lithium batteries has aroused widespread concern. The safety of lithium battery overc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/04H01M2/08H01M2/12H01M50/147H01M50/186
CPCH01M50/152H01M50/183H01M50/317Y02E60/10
Inventor 林海强邓广君
Owner 奕东电子科技股份有限公司