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Battery top cover assembly structure and battery top cover assembly method

An assembly structure and top cover technology, which is applied in the direction of battery cover/end cover, structural parts, battery pack components, etc., can solve the problems of limited overcurrent capacity of the pole, reduced safety performance of the battery cell, and small cross section of the pole, etc. , to achieve the effect of improving safety and stability, simplifying production process and increasing welding strength

Pending Publication Date: 2019-11-08
JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above scheme protects the battery to a certain extent, but this scheme still has the following defects at least: first, the structure is complex and not easy to produce; second, the pole needs to be machined to complete, which takes a long time and costs high; , during the machining process of the pole, it is easy to produce metal wires, which will reduce the safety performance of the battery cell or even scrap it; fourth, the cross-section of the pole is small, resulting in the limitation of the overcurrent capacity of the pole

Method used

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  • Battery top cover assembly structure and battery top cover assembly method
  • Battery top cover assembly structure and battery top cover assembly method
  • Battery top cover assembly structure and battery top cover assembly method

Examples

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Embodiment 1

[0031] like Figure 1~4 As shown, a battery top cover assembly structure includes a first pole 1, a second pole 2 and a top cover sheet 3, the first pole 1 is installed with a first welding ring 41, and the second pole 2 is installed with a first Two welding rings 42, the top of the first pole 1 is covered with a first plastic part 51 that matches the first welding ring 41, and the top of the second pole 2 is covered with a second plastic that matches the second welding ring 42 The member 52, the first pole 1 and the second pole 2 respectively pass through the sealing ring 6 and are installed on the top cover sheet 3. Since the pole structure and manufacturing process of the power battery directly affect the performance of the lithium-ion battery cell and even the entire battery, in order to cooperate with the rubber-covered structure of the top cover and the pole of the present invention, the pole needs to form a structure that matches the plastic parts. It is used to fasten...

Embodiment 2

[0041] like Figure 1~4 As shown, a battery top cover assembly method, including:

[0042] Fix the first pole 1 to the top cover sheet 3 through the sealing ring 6, and fix the second pole 2 to the top cover sheet 3 through the sealing ring 6;

[0043] Put the welding hole 30 of the first welding ring 41 on the first cylinder 12, ensure that the protrusion 301 on the inner wall of the welding hole 30 is fixed in the positioning groove 20, and then perform laser welding, so that the first welding ring 41 is welded to the first pole 1, and then the first plastic part 51 is glued on the top of the first welding ring 41 and the first pole 1, and the second pole 2 and the second welding ring 42 are glued, so that the first pole 1 and the top Insulated connection between the covers 3;

[0044] Put the welding hole 30 of the second welding ring 42 on the second cylinder 22, ensure that the protrusion 301 on the inner wall of the welding hole 30 is fixed in the positioning groove 20...

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Abstract

The invention belongs to the technical field of battery manufacturing, and particularly relates to a battery top cover assembly structure. The battery top cover assembly structure comprises a first pole, a second pole and a top cover sheet, the first pole is provided with a first welding ring, the second pole is provided with a second welding ring, the top portion of the first pole is encapsulatedwith a first plastic piece matched with the first welding ring, the top portion of the second pole is encapsulated with a second plastic piece matched with the second welding ring, the first pole andthe second pole pass through the seal ring and are installed at the top cover sheet. By arranging an encapsulating structure of the top cover aluminum ring and the poles, the problem of generation ofa metal wire is solved, the safety of the battery is improved, the overcurrent capacity of the poles is ensured, and the production process is simplified, so that the production cost is reduced. Besides, the invention further discloses a battery top cover assembly method.

Description

technical field [0001] The invention belongs to the technical field of battery production and manufacturing, and in particular relates to a battery top cover assembly structure and an assembly method. Background technique [0002] With the development of modern society and the enhancement of people's awareness of environmental protection, more and more devices choose to use lithium batteries as power sources, such as mobile phones, notebook computers, power tools and electric vehicles, etc., which provides a great opportunity for the application and development of lithium batteries wide open space. Among them, lithium batteries used in electric tools and electric vehicles are generally called power batteries. Among them, the structure and manufacturing process of the pole and top cover of the power battery directly affect the performance of the lithium-ion battery cell and even the entire battery. [0003] Among them, the Chinese patent literature discloses a battery top c...

Claims

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Application Information

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IPC IPC(8): H01M2/04H01M2/06H01M2/30
CPCH01M50/147H01M50/148H01M50/172H01M50/543Y02E60/10
Inventor 李勇军姜斌龙绘锦王程邹武元
Owner JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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