New energy battery pole plate

By carving tiny units on the new energy battery plate and forming a fuse structure, the burning and fire problems caused by short circuits between the battery electrodes are solved, and the safety of the battery is improved.

CN119400790APending Publication Date: 2025-02-07朱震州
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Patent Information

Application Number
CN202411569373.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-02-07

AI Technical Summary

Technical Problem

When new energy batteries are short-circuited between poles, they can easily cause battery burning and fire, and the existing technology is difficult to effectively solve this safety problem.

Method used

Through processing methods such as laser engraving or etching, the positive and negative electrode plates of new energy batteries are divided into micro units, and one or more connection lines are left between the units to form a fuse structure. When the battery is squeezed due to external force or the lithium dendritics are short-circuited between the positive and negative electrodes, the fuse structure of the short-circuited unit wire is fused by the battery short-circuit current, causing the short-circuit unit to be disconnected from the battery body and the short-circuit state is relieved.

Benefits of technology

It effectively reduces the problem of new energy batteries deflagration due to short circuits between electrodes and improves the safety of the batteries.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention discloses a new energy battery pole plate, and relates to the technical field of new energy batteries, a positive pole plate and a negative pole plate of a battery are divided into tiny units by processing means such as laser engraving, etching and the like, one or more connecting lines are reserved between the units during processing to be connected with the adjacent units or a pole plate main body, and a section of narrowed part is arranged in each connecting line to form a fusing structure; when the battery is extruded by external force or lithium dendrites between the positive electrode and the negative electrode are short-circuited, the fusing structure of the short-circuited unit connecting line is fused by the short-circuit current of the battery, so that the short-circuit unit is disconnected from the battery main body, the short-circuit state of the battery is relieved, and the problem of detonation of the new energy battery due to inter-electrode short circuit is solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of new energy batteries, in particular to a new energy battery plate. Background Art

[0002] New energy batteries can be used to build energy storage power stations to regulate peak and valley electricity consumption, and are also widely used to power electric vehicles. As a result, the application of new energy batteries is now being vigorously promoted in the market. New energy batteries contain lithium. Since lithium is a metal that is particularly prone to chemical reactions, it is easy to extend and burn, so the safety requirements are very high. When a new energy battery has an internal short circuit, the battery's electrical energy continues to generate heat energy through the short circuit point, which can easily cause the battery to burn and cause a fire. Summary of the invention

[0003] The purpose of the present invention is to provide a new energy battery plate, which solves the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy battery plate, wherein the positive and negative plates of the battery are divided into tiny units by laser engraving, etching and other processing means. During processing, one or more connecting lines are left between the units to connect with adjacent units or the plate body. There is a narrowed part in the connecting line to form a fuse structure. When the battery is squeezed by external force or short-circuited by lithium dendrite crystals between the positive and negative electrodes, the fuse structure of the short-circuited unit connection line is melted by the battery short-circuit current, so that the short-circuited unit is disconnected from the battery body, and the battery short-circuit state is released, reducing the problem of new energy batteries exploding due to short circuits between the electrodes.

Claims

1. A new energy battery plate, characterized in that: The positive and negative plates of new energy batteries are divided into tiny units through laser, etching and other processing methods.

2. A new energy battery plate, characterized in that: During processing, one or more connection lines are left between the units to connect to adjacent units or the plate body.

3. A new energy battery plate, characterized in that: There is a narrowed section on the plate unit connection line, forming a fuse structure. When the battery is squeezed by external force or the lithium dendrites between the positive and negative electrodes are short-circuited, the fuse structure of the short-circuited unit connection line is melted by the battery short-circuit current.