Lithium battery film thickness gauge

Abstract

The invention discloses a lithium battery film thickness gauge which comprises a measuring base, a measuring arm, a film moving mechanism, a lifting mechanism and a measuring mechanism, wherein the measuring arm is arranged on the measuring base; the lifting mechanism is arranged on a measuring wall; the measuring mechanism is arranged on the lifting mechanism; the film moving mechanism is arranged on one side of the measuring base; a measurement position on the measurement base is connected with an adsorption device; and the measuring mechanism comprises a measuring probe, a micro sensor and a high-precision analog-to-digital conversion module. According to the lithium battery film thickness gauge, the contact surface is increased and the compression deformation of the film is reduced by the measuring mechanism, and high-precision measurement is ensured; the lifting structure is used for avoiding compression deformation of the film caused by rapid movement impact; an over-range gap is connected between the lifting rod and the sensor, so that the influence of the lifting mechanism on the sensor is avoided; the film moving mechanism avoids deformation caused by manual dragging, so that the movement is smooth and uniform; and the measurement position is connected with the adsorption device, so that the film is in complete contact with the measurement platform, and accurate measurement is ensured.

Description

technical field [0001] The invention relates to a lithium battery film thickness gauge. Background technique [0002] With the rise of the new energy automobile industry, the development prospects of the downstream lithium battery industry have been driven, and the demand for thin films, the core components of lithium batteries, has also increased sharply. However, the high-precision measurement of the thickness of lithium battery films has encountered bottlenecks. The main There are two points: [0003] 1. The measurement accuracy and stability are not high (the thickness of the lithium battery film is thin, and the material is soft and easy to deform): [0004] 1) The standard sensor has a large measuring force and a large measuring range, which causes elastic deformation of the film during measurement; [0005] 2) The speed of the lifting device of the sensor measuring head is not easy to control, and the measurement speed is not constant, resulting in unstable elastic ...

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Problems solved by technology

[0003] 1. The measurement accuracy and stability are not high (the thickness of the lithium battery film is thin, and the material is soft and easy to deform):

[0004] 1) The standard sensor has a large measuring force and a large measuring range, which causes elastic deformation of the film during measurement;

[0005] 2) The speed of the lifting device of the sensor measuring head is not easy to control, and the measurement speed is not constant, resulting in unstable elastic deformation;

[0006] 3) The measuring clamping mechanism is not firm;

[0007] 4) The film placed on the measuring table is uneven and easy to wrinkle;

[0008] 2. There is no professional equipment for lithium battery film thickness measurement in the industry. Most of them use the existing measuring tools on the market to assemble or simply connect them together for measurement (for example, most customers now use the sensor to fix the standard measurement on the measuring seat), stability and accuracy are difficult to guarantee

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