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Method and device for testing coating condition of laminated chip pole piece

A laminated battery technology, applied in measuring devices, instruments, optical devices, etc., can solve the problems of large space occupation, inability to apply assembly line online detection, low efficiency, etc., and achieve the effect of improving battery safety performance

Inactive Publication Date: 2018-09-18
桑顿新能源科技(长沙)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of the production line, it is only used for random inspection and cannot be applied to the on-line inspection of the assembly line, or other auxiliary facilities must be added to the on-line inspection, which has low efficiency, high cost, and large floor space; and there are various missed inspections, misjudgments, etc. disadvantages

Method used

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  • Method and device for testing coating condition of laminated chip pole piece
  • Method and device for testing coating condition of laminated chip pole piece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] When the positive and negative pole pieces are stacked together, all the tabs of the positive pole pieces will completely overlap, and the tabs of the negative pole pieces will overlap together as a whole. When there is one or more pole pieces misaligned left and right between the tab layers, and there is an offset, the width dimension of the tab layer a>standard value; when there is one or more pole pieces offset upwards between the tab layers, the tab is exposed The length dimension b> standard value; when the pole piece of the tab layer deviates downward as a whole, the exposed length dimension b of the tab < the standard value; if the width direction of the separator and the negative electrode piece is poorly covered, the shoulder width c < the standard value.

Embodiment 2

[0033] Take 100 batteries to flow through the testing equipment on the assembly line, 15 of them are selected to the poorly coated area, measure the dimensions a, b, and c of the tabs of each defective battery, and at least one value is inconsistent with its standard value; Randomly select 15 normal batteries, and measure the dimensions a, b, and c of the tab positions, which are all consistent with the standard values.

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PUM

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Abstract

The invention discloses a method and device for testing a coating condition of a laminated chip pole piece. The method comprises: an electric core is irradiated by using an imaging device to carry outimaging; an online detecting device measures dimensions of a tab and the dimensions are compared with a set standard value; an electric core conforming to the standard is transferred to a next procedure and an electric core exceeding the standard is selected out and is conveyed to a defective area. According to the invention, the coating situation of the pole piece of the electric core is determined by identifying the flatness of the tag of the pole piece. The principle is simple, the cost is saved, the product line productivity is increased; the occupied space is reduced; and the installation position becomes flexibly; no special safety protection for the light source radiation is needed; and the method and device can be applied to detection of the coating condition of laminated batteries of the battery enterprises.

Description

technical field [0001] The invention belongs to the field of detection of laminated batteries, and in particular relates to a method and equipment for testing the wrapping conditions of laminated battery pole pieces. Background technique [0002] With the increasing popularity of electronic products in today's society, the requirements for batteries are gradually increasing, and the development of lithium-ion battery products is accelerating. Lithium-ion batteries are first used in electronic products, mainly including mobile phones, notebook computers, digital cameras, etc. With the shortage of petroleum resources and the aggravation of environmental pollution, in order to solve the energy and pollution problems, the global development boom has risen again, and electric vehicles have become a green industry actively promoted by governments of various countries. Lithium-ion batteries have the advantages of clean and pollution-free, diversified power sources, high energy con...

Claims

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Application Information

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IPC IPC(8): G01B11/02G01B11/04
CPCG01B11/022G01B11/043G01B11/046
Inventor 王海平陈浩万光明王宁刘益文
Owner 桑顿新能源科技(长沙)有限公司
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