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Determination method for chamfer dimensions of die head gasket and die head gasket implementing same

A method of determining the chamfering technology, which is applied in the direction of electrode manufacturing, measuring devices, instruments, etc., can solve the problems of high cost and inaccurate experimental results, and achieve the reduction of experimental costs, ensure accuracy and reliability, and determine the chamfer size accurate effect

Active Publication Date: 2018-05-01
CALB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for determining the size of the chamfer of the die gasket, so as to solve the problem of determining the suitable chamfer size of the die gasket in the prior art, which often requires more than one die gasket, the cost is high, and the experiment The problem of inaccurate results; the purpose of the present invention is also to provide a die gasket

Method used

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  • Determination method for chamfer dimensions of die head gasket and die head gasket implementing same
  • Determination method for chamfer dimensions of die head gasket and die head gasket implementing same
  • Determination method for chamfer dimensions of die head gasket and die head gasket implementing same

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Embodiment Construction

[0032] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] Embodiments of the die shims of the present invention, such as Figure 2 to Figure 7 As shown, the die gasket has a left side gasket part 1, a right side gasket part 2 and a shunt gasket 3 between the left and right side shim parts, the shunt gasket 3 is T-shaped, and the shunt Gasket 3 makes the die head gasket form two shunt outlets 8 of the shim. Both sides of the shunt outlet 8 of the two shims are provided with chamfers. The four chamfers have different sizes, and the length of the chamfers ranges from 0 mm to 10.0mm, the angle range of the four chamfers is 0°~90°, and the four chamfers increase sequentially from left to right. The four chamfers from left to right are the first chamfer 4, the second chamfer 5, the third chamfer 6 and the fourth chamfer 7, the size of the first chamfer is set to h4=2.0mm, L4=7.0 mm; the size of the second ch...

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Abstract

The invention relates to a determination method for the chamfer dimensions of a die head gasket and the die head gasket implementing the method. The determination method for the chamfer dimensions ofthe die head gasket comprises the following steps: step one, arranging at least two chamfers of different dimensions on the die head gasket; step two, mounting the die head gasket on a die head of anextrusion coating machine, and coating a foil with a uniformity mixed battery sizing agent; and step three, after the coasting is stabilized, carrying out sampling measurement and drawing a profile curve of the coating along the thickness direction, and determining the chamfer dimensions of the die head gasket applicable for the battery sizing agent according to the profile curve. According to thedetermination method for the chamfer dimensions of the die head gasket, the chamfer dimensions of the die head gasket applicable for the battery sizing agent can be determined by only one die head gasket, so that the experiment cost is obviously reduced; and moreover, the chamfer dimensions are of only one variable, the influences (such as pump speed, sizing agent batch and man-made operation factors) of other factors among different tests are eliminated, and the accuracy and reliability of experimental result are guaranteed.

Description

technical field [0001] The invention relates to a method for determining the chamfer size of a die head gasket and a die head gasket for realizing the method. Background technique [0002] In the process of lithium battery production and manufacturing pole pieces, the uniformly mixed lithium battery slurry is evenly coated on the foil. The battery slurry on the edge of the coating area will have a certain degree of uneven surface tension due to the uneven distribution of surface tension. Shrinkage, if the shrinkage thickness of the edge of the coating area is higher than the median thickness M of the coating area, thick edge defects will occur, seriously affecting the quality of the pole piece. In addition, there will be an abnormal edge thickness area on the edge of the coating area (from the edge of the coating area to the coating thickness of the pole piece close to the median thickness of the coating area), its size directly affects the processing of the pole piece and t...

Claims

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Application Information

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IPC IPC(8): H01M4/04G01B21/08G01B21/20
CPCG01B21/08G01B21/20H01M4/0404Y02E60/10
Inventor 董义李宗达马佰瑞
Owner CALB CO LTD
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