A glass-insulated and sealed battery electrode assembly

Abstract

This utility model discloses a glass-insulated and sealed battery electrode assembly, including a battery cover, a metal ring, and an electrode post. A support portion is provided around the outer periphery of the electrode post. The metal ring is fitted around the electrode post, with a gap between the inner wall of the metal ring and the outer wall of the electrode post. The upper end face of the metal ring is welded to the lower surface of the support portion via a glass layer. The battery cover is fitted around the metal ring, and a glass-sealed insulating layer is provided on the inner side of the battery cover. Its advantages include the metal ring being fitted around the electrode post, the upper end face of the metal ring being welded to the lower surface of the support portion via a glass layer, and the glass layer possessing high temperature resistance, corrosion resistance, and high sealing strength. The glass-sealed insulating layer on the inner side of the battery cover insulates the battery cover from the battery core.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, and in particular to a glass-insulated and sealed battery electrode assembly. Background Technology

[0002] Currently, the terminals of power batteries are insulated and sealed to the battery cover using PPS plastic. However, the PPS plastic used in this solution is not resistant to high temperatures or corrosion, and its sealing strength is not high enough. At the same time, the inner side of the battery cover is insulated from the core using PPS plastic, resulting in poor sealing performance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a glass-insulated and sealed battery electrode assembly to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0005] A glass-insulated and sealed battery electrode assembly includes a battery cover, a metal ring, and an electrode post. The electrode post has a support portion on its outer periphery. The metal ring is sleeved on the outside of the electrode post. There is a gap between the inner wall of the metal ring and the outer wall of the electrode post. The upper end face of the metal ring is welded to the lower surface of the support portion through a glass layer. The battery cover is sleeved on the outside of the metal ring. The inner side of the battery cover has a glass sealing insulation layer.

[0006] In a preferred embodiment, the outer wall of the metal ring is provided with an annular groove, and the battery cover is sleeved on the outside of the annular groove.

[0007] A preferred embodiment is that an insulating sleeve is provided between the inner wall of the metal ring and the outer wall of the electrode post.

[0008] The glass-insulated and sealed battery electrode assembly provided in this embodiment of the invention has at least the following beneficial effects: a metal ring is sleeved outside the electrode post, and the upper end face of the metal ring is welded to the lower surface of the support through a glass layer. The glass layer has the characteristics of high temperature resistance, corrosion resistance, and high sealing strength, solving the problems of plastic's poor high temperature resistance, poor corrosion resistance, and insufficient sealing strength. The glass layer plays an insulating and fixing role. There is a gap between the inner wall of the metal ring and the outer wall of the electrode post, which makes the battery cover plate insulated from the electrode post. The inner side of the battery cover plate is provided with a glass sealing insulation layer, which makes the battery cover plate insulated from the core inside the battery.

[0009] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of the present invention. Detailed Implementation

[0011] To illustrate the ideas and objectives of this application, the following description will be provided in conjunction with the accompanying drawings and specific embodiments.

[0012] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," "left," "right," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0013] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0014] like Figure 1 As shown, a glass-insulated and sealed battery electrode assembly includes a battery cover plate 10, a metal ring 20, and an electrode post 30. The electrode post 30 has a support portion 31 on its outer periphery. The metal ring 20 is sleeved on the outside of the electrode post 30, and there is a gap between the inner wall of the metal ring 20 and the outer wall of the electrode post 30. The upper end face of the metal ring 20 is welded to the lower surface of the support portion 31 through a glass layer 40. The battery cover plate 10 is sleeved on the outside of the metal ring 20, and the inner side of the battery cover plate 10 is provided with a glass sealing insulation layer 50.

[0015] like Figure 1 As shown, a metal ring 20 is sleeved around the electrode post 30, and the upper end face of the metal ring 20 is welded to the lower surface of the support part 31 through a glass layer 40. The glass layer 40 has the characteristics of high temperature resistance, corrosion resistance, and high sealing strength, solving the problems of plastic's inability to withstand high temperatures and corrosion, and insufficient sealing strength. The glass layer 40 serves as insulation and fixation. There is a gap between the inner wall of the metal ring 20 and the outer wall of the electrode post 30, which insulates the battery cover 10 from the electrode post 30. The inner side of the battery cover 10 is provided with a glass sealing insulation layer 50, which insulates the battery cover 10 from the core inside the battery.

[0016] like Figure 1 As shown, the outer wall of the metal ring 20 is provided with an annular groove, and the battery cover 10 is sleeved on the outside of the annular groove. The annular groove serves to fix the battery cover 10.

[0017] like Figure 1 As shown, an insulating sleeve is provided between the inner wall of the metal ring 20 and the outer wall of the electrode post 30. The insulating sleeve is fitted onto the electrode post 30 to provide insulation.

[0018] The above are specific embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A glass-isolated sealed battery electrode assembly comprising a battery cover plate, a metal ring and an electrode post, the electrode post having a support portion provided on the outer periphery thereof, characterized in that, The metal ring is sleeved on the outside of the electrode post, and there is a gap between the inner wall of the metal ring and the outer wall of the electrode post. The upper end face of the metal ring is welded to the lower surface of the support through a glass layer. The battery cover is sleeved on the outside of the metal ring, and the inner side of the battery cover is provided with a glass sealing insulation layer.

2. The glass-isolated sealed battery electrode assembly of claim 1, wherein, The outer wall of the metal ring is provided with an annular groove, and the battery cover is sleeved on the outside of the annular groove.

3. The glass-isolated sealed battery electrode assembly of claim 1, wherein, An insulating sleeve is provided between the inner wall of the metal ring and the outer wall of the electrode post.

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