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Integrated pole, top cover assembly, battery and battery module

A one-piece, pole technology, applied to battery pack components, circuits, structural parts, etc., can solve the problems of increasing the cost and weight of the battery top cover, reducing the utilization rate of the internal space of the shell, and complicating the assembly process of the pole structure. , to achieve simplified structure, high space utilization, and reduced weight

Pending Publication Date: 2022-08-05
TIANJIN ENERGIES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the complex structure of the pole itself and the assembly process, it will not only reduce the assembly efficiency of the battery, but also increase the cost and weight of the battery top cover
At the same time, the above-mentioned assembly method reduces the space utilization rate inside the casing because the base of the pole is located inside the casing, resulting in a reduction in the energy density of the battery.

Method used

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  • Integrated pole, top cover assembly, battery and battery module
  • Integrated pole, top cover assembly, battery and battery module
  • Integrated pole, top cover assembly, battery and battery module

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Embodiment Construction

[0038] It should be understood that in the description of the present invention, the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or impl...

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Abstract

The invention provides an integrated pole, a top cover assembly, a battery and a battery module, the integrated pole comprises a first welding ring, the inner side of the first welding ring is provided with a sealing ring, the sealing ring sleeves the periphery of the pole, the periphery of the first welding ring, the periphery of the sealing ring and the periphery of the pole are sleeved with injection molding parts, and the injection molding parts are connected with the top cover assembly. The first welding ring, the sealing ring and the pole are fixed into a whole by the injection molding part, and the first welding ring is welded on the second welding ring to form an integrated structure. According to the integrated pole provided by the invention, the structure of the pole and the assembly of the top cover assembly are simplified at the same time, the assembly efficiency is improved, and the manufacturing cost is reduced; and the integrated pole is integrally assembled outside the top cover plate, so that the space utilization rate in the shell is higher, and the energy density of the battery is effectively improved. In addition, the integrated pole provided by the invention is thinner, the weight of a battery cover plate is reduced, and the energy density of the battery is further improved.

Description

technical field [0001] The invention belongs to the technical field of battery production and manufacturing, and particularly relates to an integrated pole post, a top cover assembly, a battery and a battery module. Background technique [0002] At present, the battery shell generally adopts a square hard shell structure, which provides a closed accommodation space for the electrode assembly and the electrolyte. The battery casing includes a casing and a top cover assembly, wherein the electric energy of the electrode assembly is led out from the closed space to the outside of the closed space through the poles of the top cover assembly. In the existing top cover assembly, the top cover plate is usually a metal plate with through holes, and the pole is divided into a base part and an extension part, and the cross-sectional area of ​​the base part is larger than the diameter of the through hole. When assembling, the base of the pole is located below the top cover plate (that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/148H01M50/531
CPCH01M50/148H01M50/531Y02P70/50
Inventor 刘峰奚明明
Owner TIANJIN ENERGIES
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