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Tab structure, application of tab structure, preparation method and preparation device of tab structure

A preparation device and tab technology, which is applied to structural parts, manufacturing tools, welding equipment, etc., can solve the problems of unstable forming process, insufficient anti-adhesion performance of tab structure, poor integrity of pole piece forming, etc.

Pending Publication Date: 2020-12-18
ZHONGTIAN ENERGY STORAGE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The poor forming integrity of the pole piece is mainly due to the insufficient anti-sticking performance of the tab structure and the instability of the forming process.

Method used

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  • Tab structure, application of tab structure, preparation method and preparation device of tab structure
  • Tab structure, application of tab structure, preparation method and preparation device of tab structure

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Embodiment Construction

[0033]In order to be able to understand the above objectives, features and advantages of the embodiments of the application more clearly, the application will be described below in conjunction with the drawings and specific implementations. It should be noted that the features in the embodiments of the present application can be combined with each other if there is no conflict.

[0034]In the following description, many specific details are explained in order to fully understand the embodiments of the present application. The described embodiments are only a part of the embodiments of the present application, rather than all of them.

[0035]Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field belonging to the embodiments of the present application. The terms used in the specification of the application herein are only for the purpose of describing specific implementations, and are not...

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Abstract

The invention discloses a tab structure, application of the tab structure, a preparation method and a preparation device of the tab structure. The tab structure comprises an electrode plate and a tabbody, the tab body is of an isosceles trapezoid structure, and the angle between the waist edge of the tab body and the edge of the electrode plate body is greater than or equal to 80 degrees and lessthan or equal to 85 degrees. The tab body is adjusted into the isosceles trapezoid, and the angle between the waist edge of the tab body and the electrode plate is limited, so that the design of thetab structure is optimized, and the anti-sticking performance of the tab body is improved; the tab structure has an important significance for improving the forming integrity of the battery electrodeplate and the consistency of the battery cell, and meanwhile has high applicability in the aspect of sheet laser forming.

Description

Technical field[0001]This application relates to the technical field of battery design, in particular to a tab structure, the application of the tab structure, a preparation method and a preparation device.Background technique[0002]This section is intended to provide background or context for the implementation of this application. The description here is not admitted to be prior art just because it is included in this section.[0003]The square aluminum shell lithium ion battery is the main battery cell used in current lithium battery energy storage products. The multi-pole lug structure winding core is its main component unit. Improving the consistency of the multi-pole lug winding core is important for the battery cell monomer significance. In the preparation process of the multi-pole lug core, the forming integrity of the positive and negative pole pieces is the basis for ensuring the consistency of the multi-pole lug core. Among them, improving the stability of the lug forming pr...

Claims

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Application Information

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IPC IPC(8): H01M2/26H01M10/0525H01M10/0587B23K26/38
CPCH01M10/0525H01M10/0587B23K26/38Y02E60/10Y02P70/50
Inventor 罗勇杨伟靳承铀缪永华曹红彬薛驰
Owner ZHONGTIAN ENERGY STORAGE TECH
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