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Cover plate assembly and battery

A cover plate and component technology, which is applied to battery pack parts, battery cover/end cover, battery box/coat, etc., can solve the problems that the battery cannot be refilled, pressure measured, etc., achieve simple structure, reduce the number of parts, The effect of reducing manufacturing costs

Pending Publication Date: 2022-08-05
HUBEI JINQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An object of the present invention is to provide a cover plate assembly, which solves the problem that the existing batteries cannot be refilled and pressure measured after being sealed

Method used

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  • Cover plate assembly and battery
  • Cover plate assembly and battery
  • Cover plate assembly and battery

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

[0035] In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements....

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Abstract

The invention belongs to the technical field of batteries, and discloses a cover plate assembly and a battery. The cover plate assembly comprises a cover plate body and a sealing plug, the cover plate body is connected with the battery body, a through hole is formed in the cover plate body, and the through hole is communicated with the interior of the battery body. The sealing plug is detachably connected to the cover plate body and can seal the through hole, and the sealing plug is made of a soft material. The sealing plug is jacked up under high-pressure impact, and the function of an anti-explosion valve is achieved; besides, the needle head can easily penetrate through the sealing plug to perform liquid injection or exhaust operation on the battery body, and the needle hole can be automatically sealed after the needle head is taken out; moreover, when the internal pressure of the battery body needs to be tested, the interior of the battery body is communicated with the pressure testing equipment only by inserting a needle into the sealing plug, and the cover plate assembly does not need to be damaged. The cover plate assembly is simple in structure and convenient to operate, the number of assembled parts is greatly reduced, and the manufacturing cost of the cover plate assembly is reduced.

Description

technical field [0001] The present invention relates to the technical field of batteries, in particular to a cover plate assembly and a battery. Background technique [0002] Lithium batteries have the advantages of small size, high energy density, long service life, and green environmental protection, and are widely used in industries such as automobiles, electronic products and energy storage systems. Lithium battery cover is generally provided with a liquid injection hole. After the lithium battery cover is assembled with the lithium battery case, electrolyte is injected into the battery through the liquid injection hole. After the liquid injection is completed, the liquid injection hole needs to be plugged with a sealing plug. After the subsequent formation is completed, the sealing plug and the battery cover plate are welded into one body by laser welding. The lithium battery cover is generally designed with an explosion-proof valve, which is also connected to the lith...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/198H01M50/186H01M50/184H01M50/147H01M50/317H01M50/342H01M50/645
CPCH01M50/198H01M50/186H01M50/184H01M50/317H01M50/645H01M50/342H01M50/147Y02E60/10
Inventor 明文豪朱鹏翔赵生荣张敏辉李秋平邱章恒
Owner HUBEI JINQUAN NEW MATERIALS CO LTD
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