Unlock instant, AI-driven research and patent intelligence for your innovation.

Roll core tab edge distance determination method and winding equipment correction method

A technology for determining the method and winding core, applied in the direction of design optimization/simulation, sustainable manufacturing/processing, climate sustainability, etc., which can solve the problem of inability to achieve real-time monitoring, achieve control of product winding quality, improve control and efficiency high effect

Active Publication Date: 2021-12-10
GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rolled lithium-ion batteries have been widely popularized and applied at present. The method for determining the appearance of the battery quality and the alignment of the pole piece and the separator in the width direction are well known in the industry. It is a vacancy in the industry. The existing appearance inspection or manual determination methods are all inspections after the product is completed, which cannot achieve real-time monitoring and effective control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Roll core tab edge distance determination method and winding equipment correction method
  • Roll core tab edge distance determination method and winding equipment correction method
  • Roll core tab edge distance determination method and winding equipment correction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] refer to Figure 1 to Figure 6 , a non-limiting embodiment of the present invention, before the winding needle 11 is wound, the negative tab 45 is located near the head of the negative sheet 40 before winding, and the positive tab 25 is located on the positive sheet 20 at a distance of The position of the head farther away before the positive electrode sheet 20 is wound, that is, as Figure 4 As shown, the positive tab 25 is distributed at the position where the positive tab 20 is wound half a circle along the needle 11. In this embodiment, the positive tab 25 and the negative tab 45 are respectively located on both sides of the needle 11. In this embodiment , the mathematical model includes,

[0048] Mathematical model (1): L=(X+a+b+X1)-X2, where, during gap coating, L is the distance between the head of the negative electrode coating and the head of the separator 30 before the winding is completed; When L is the distance between the head of the negative electrode sh...

Embodiment 2

[0067] The structure and principle of this embodiment and embodiment 1 are basically the same, the difference is: refer to Figure 1 to Figure 3 , Figure 9 and Figure 10 , a non-limiting embodiment of the present invention, before the winding needle 11 is wound, the negative electrode ear 45 is located at a position far from the head of the negative electrode sheet 40 before winding, that is, as Figure 9 As shown, the negative electrode ear 45 is distributed between the position where the positive electrode sheet 20 winds along the winding needle 11 past the outer pressure point and the center position of the winding needle 11. The location farther away, that is, if the Figure 9 As shown, the positive pole tab 25 is distributed at the position where the positive pole piece 20 is wound half a circle along the winding needle 11. In this embodiment, the positive pole ear 25 and the negative pole ear 45 are located on the same side of the winding needle 11. In this embodimen...

Embodiment 3

[0078] The structure and principle of this embodiment and embodiment 1 are basically the same, the difference is: refer to Figure 1 to Figure 3 , Figure 11 and Figure 12 , a non-limiting embodiment of the present invention, before the winding needle 11 is wound, the negative electrode ear 45 is located at a position far from the head of the negative electrode sheet 40 before winding, that is, as Figure 9As shown, the negative electrode ear 45 is distributed between the position where the positive electrode sheet 20 winds along the winding needle 11 past the outer pressure point and the center position of the winding needle 11. The location farther away, that is, if the Figure 9 As shown, the positive pole tab 25 is distributed at the position where the positive pole piece 20 is wound half a circle along the winding needle 11. In this embodiment, the positive pole ear 25 and the negative pole ear 45 are located on the same side of the winding needle 11. In this embodimen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a roll core tab edge distance determination method and a winding equipment correction method. The determination method comprises the steps of obtaining a head interval distance parameter of battery cell winding, a winding interval distance parameter of winding a pole piece and a diaphragm into a winding needle, a distance parameter of a physical model of a winding device, and a preset thickness after the battery cell is formed, and determining the tab spacing and the predicted distance of the negative tab edge distance after the battery cell is formed through a preset mathematical model. According to the correction method, the preset standard distance between the tab spacing and the negative tab edge distance is compared with the predicted distance obtained according to the determination method, and then the winding equipment is corrected. The roll core tab edge distance determination method and the winding equipment correction method not only are high in efficiency, but also can effectively control the product winding quality, and have the advantages of being good in product quality, high in yield and the like.

Description

technical field [0001] The invention relates to the technical field of internal quality detection and control of lithium-ion winding batteries, in particular to a method for determining the edge distance of tabs of winding cores and a method for calibrating winding equipment. Background technique [0002] Rolled lithium-ion batteries have been widely popularized and applied at present. The method for determining the appearance of the battery quality and the alignment of the pole piece and the separator in the width direction are well known in the industry. It belongs to a vacancy in the industry. The existing appearance inspection or manual determination methods are all inspections after the product is completed, which cannot achieve real-time monitoring and effective control. Contents of the invention [0003] The invention provides a method for obtaining the distance parameter of the head section of the battery winding, the distance parameter of the winding section of th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/0587G06F30/20
CPCH01M10/0525H01M10/0587G06F30/20Y02E60/10Y02P70/50
Inventor 不公告发明人
Owner GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD