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Battery cell winding needle and battery cell winding machine

A cell winding and needle rolling technology, which is applied to non-aqueous electrolyte batteries, circuits, electrical components, etc., can solve the problems of central hole blockage, low product yield, and complicated cell processing procedures, so as to improve quality and yield. , The effect of simplifying the processing process

Pending Publication Date: 2021-01-22
DONGGUAN CHUANGMING BATTERY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The application provides a battery winding needle and a battery winding machine to solve the technical problems in the prior art that the battery processing process is complicated, and the central hole is easily blocked, resulting in a low product yield

Method used

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  • Battery cell winding needle and battery cell winding machine
  • Battery cell winding needle and battery cell winding machine
  • Battery cell winding needle and battery cell winding machine

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Embodiment Construction

[0040] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0041] In the description of the embodiments of the present application, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implic...

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Abstract

The invention provides a battery cell winding needle and a battery cell winding machine. The battery cell winding needle comprises a handle and a winding needle body; one end of the winding needle body is connected with the end part of the handle; the winding needle body comprises a first needle body and a second needle body which are oppositely arranged, and the first needle body and the second needle body are arranged at intervals. Specifically, a convex part is arranged on one side, facing the second needle body, of the first needle body, a concave part is arranged on one side, facing the first needle body, of the second needle body, the convex part extends into the concave part, a gap is formed between the convex part and the inner wall of the concave part, a diaphragm penetrates intothe gap, and the diaphragm is wound on the winding needle body to form a battery cell. According to the battery cell winding needle and the battery cell winding machine provided by the invention, theprocessing procedure of the battery cell can be simplified, and the quality and yield of the battery cell are improved.

Description

technical field [0001] The present application relates to the technical field of lithium battery production, in particular to a battery winding needle and a battery winding machine. Background technique [0002] In the lithium battery manufacturing process, the winding of the battery cell is the most critical step, and the quality of the battery winding will affect the safety and service life of the lithium battery. [0003] At present, winding needles are usually used to wind the battery cells. The existing battery winding machines mostly use two half-type winding needles. The two half-type winding needles are separated before winding, and there is a gap The gap is for the septum to penetrate, and after the septum is penetrated, the two half-style needles will merge into a whole and clamp the septum to wind together. [0004] In the prior art, there is a diaphragm in the center hole of the battery core after winding, and it is necessary to go through the ironing process to...

Claims

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Application Information

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IPC IPC(8): H01M10/0587H01M10/052
CPCH01M10/052H01M10/0587Y02E60/10Y02P70/50
Inventor 袁鹏陈泽伟王洋
Owner DONGGUAN CHUANGMING BATTERY TECH
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