Device and method for monitoring rippled edge of lithium battery pole piece online

A wave edge and lithium battery technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of potential safety hazards, affecting winding accuracy and efficiency, and scrapping materials, and achieve the effect of convenient operation and simple structure

Inactive Publication Date: 2018-10-09
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wavy edge mostly occurs on the edge of the pole piece, which will greatly affect the accuracy and efficiency of the winding, resulting in the scrapping of the material, and has a great potential safety hazard
However, there is currently no detection method and measurement standard for wavy edges, so this application is proposed

Method used

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  • Device and method for monitoring rippled edge of lithium battery pole piece online
  • Device and method for monitoring rippled edge of lithium battery pole piece online

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Embodiment Construction

[0026] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other; the following describes the present invention in detail with reference to the accompanying drawings and in combination with the embodiments.

[0027] refer to figure 1 , a device for on-line monitoring of the wavy edge of a lithium battery pole piece proposed by the present invention, comprising;

[0028] The conveying mechanism is used for conveying the pole piece.

[0029] The light source, located on one side of the pole piece, is used to emit light to the pole piece along the width direction of the pole piece.

[0030] The receiving screen, located on the side of the pole piece away from the light source, is used to receive the above-mentioned light and form a shadow image.

[0031] The processor 4 is configured to acquire parameter information of each target in the shadow image, compare the parameter ...

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Abstract

The invention discloses a device for monitoring a rippled edge of a lithium battery pole piece online. The device comprises a conveying mechanism used for conveying a pole piece, a light source whichis arranged at one side of the pole piece and is used for emitting light along the width direction of the pole piece to the pole piece, a receiving screen which is arranged at one side of the pole piece away from the light source and is used for receiving the light and forming a shadow image, and a processor which is used for obtaining the parameter information of each target in the shadow image,comparing the parameter information with the preset threshold and determining whether an alarm signal is emitted according to the comparison result. The device is advantaged in that the structure is simple, operation is convenient, and online monitoring of the rippled edge of the lithium battery pole piece can be effectively carried out.

Description

technical field [0001] The invention relates to the field of lithium batteries, in particular to a device and method for online monitoring of the wavy edge of a pole piece of a lithium battery. Background technique [0002] Lithium-ion batteries have received great attention and achieved rapid development in recent years because of their excellent characteristics such as small size, light weight, low pollution, high energy density, small self-discharge coefficient, and wide application range. Coating the combined slurry on the aluminum or copper current collector, and then drying, rolling and cutting, cutting the pole piece and cutting the tab to obtain the pole piece that can be wound. [0003] Limited by the coating ability and stability of the coating machine, the coating state and surface density will fluctuate, and the thickness of the different material areas between the material area and the non-material area in the drying stage and the state of heating will be differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16
Inventor 杨广元邢军龙田坤
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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