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Method for detecting hardness of nickel-plated layer of lithium battery cap

A detection method, lithium battery technology, applied in the direction of testing material hardness, measuring device, strength characteristics, etc., can solve the problems of inaccurate test accuracy, iron matrix hardness interference, high test cost, etc., achieve low test cost and eliminate hardness interference , Hardness testing is convenient and accurate

Pending Publication Date: 2022-01-14
苏州橙柳电子精密有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the detection of the hardness of the nickel-plated layer of the lithium battery cap has the problem of the hardness interference of the iron substrate, and the test cost is high and the test accuracy is not accurate. Therefore, a method that can detect the hardness of the nickel-plated layer of the lithium battery cap appears to be particularly important

Method used

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  • Method for detecting hardness of nickel-plated layer of lithium battery cap

Examples

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Embodiment 1

[0029] Such as figure 1 As shown, the present embodiment provides a method for detecting the hardness of the nickel-plated layer of a lithium battery cap, including:

[0030] Place the lithium battery cap in the spectrometer, test and record the thickness of the nickel-plated layer of the lithium battery cap;

[0031] Place the lithium battery cap in the Vickers hardness tester, select the corresponding test pressure gear to test the hardness of the lithium battery cap according to the thickness of the nickel plating layer to be tested, and record the test data;

[0032] Place the lithium battery cap in the profiler, test and record the hardness indentation depth of the lithium battery cap;

[0033] Compare the thickness of the nickel-plated layer of the lithium battery cap with the hardness indentation depth of the lithium battery cap to determine the hardness of the nickel-plated layer of the lithium battery cap.

[0034] The detection method provided in this embodiment el...

Embodiment 2

[0036] This embodiment provides a method for detecting the hardness of the nickel-plated layer of a lithium battery cap, including:

[0037] Place the lithium battery cap in the spectrometer to test and record the thickness of the nickel-plated layer of the lithium battery cap;

[0038] Specifically, in this embodiment, the thickness of the nickel-plated layer of the lithium battery cap is tested three times, and it is ensured that the three indentations produced by the thickness test of the nickel-plated layer of the lithium battery cap need to be on a straight line, and the average value is taken as the nickel-plated layer of the lithium battery cap. The value of the layer thickness.

[0039] This can more accurately obtain data on the thickness of the nickel-plated layer of the lithium battery cap, which is more informative.

[0040] Place the lithium battery cap in the Vickers hardness tester, select the corresponding test pressure gear to test the hardness of the lithium...

Embodiment 3

[0056] This embodiment provides a detection device for the hardness of the nickel-plated layer of a lithium battery cap, including a spectrometer, a Vickers hardness tester, and a profiler. This embodiment uses conventional laboratory testing equipment to detect the hardness of the nickel-plated layer of a lithium battery cap. There is no need to purchase special equipment or entrust an agency to conduct testing, which not only enables convenient and quick testing, but also greatly saves testing costs.

[0057] Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage m...

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Abstract

The invention relates to a method for detecting the hardness of a nickel-plated layer of a lithium battery cap, and belongs to the technical field of metal material surface plating layer measurement. The method comprises the following steps: placing the lithium battery cap in a spectrograph, and testing and recording the thickness of the nickel-plated layer of the lithium battery cap; placing the lithium battery cap in a Vickers hardness tester, selecting a corresponding test pressure gear to carry out hardness detection on the lithium battery cap according to the tested thickness of the nickel plating layer, and recording test data; placing the lithium battery cap in a contourgraph, and testing and recording the hardness indentation depth of the lithium battery cap; and comparing the thickness of the nickel-plated layer of the lithium battery cap with the hardness indentation depth of the lithium battery cap to determine the hardness of the nickel-plated layer of the lithium battery cap. According to the invention, the interference of iron matrix hardness is eliminated, the hardness detection of the pure nickel-plated layer can be realized, the test cost is low, and the hardness detection result is convenient and accurate.

Description

technical field [0001] The invention relates to a method for detecting the hardness of a nickel-plated layer of a cap of a lithium battery, belonging to the technical field of measuring the surface coating of a metal material. Background technique [0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the positive and negative electrode materials and uses a non-aqueous electrolyte solution. The lithium battery cap can play the role of sealing the battery, providing a safety valve and a positive conductive terminal. [0003] With the wide application of lithium battery caps, the terminals will be worn out, and the worn parts are easily oxidized or corroded, resulting in poor electrical contact. In order to improve the oxidation resistance and corrosion resistance of the terminals, the terminals are currently electroplated with electroplating. Nickel plating refers to the method of plating a layer of nickel on metal or some non-metals by elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N3/42G01D21/02
CPCG01N3/02G01N3/42G01D21/02
Inventor 邵伟刘锡军林有余
Owner 苏州橙柳电子精密有限公司
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