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Online moisture measuring method, measuring device and measuring system

A measuring method and technology of measuring device, which are applied in the directions of drying solid materials, drying solid materials without heating, lighting and heating equipment, etc., can solve the problems of high inspection cost, waste of energy, affecting production rhythm, etc., and achieve baking consistency Good, reduce production costs, improve the effect of production efficiency

Pending Publication Date: 2018-07-13
深圳力士智造科技有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

If you want to ensure that all the batteries can be baked in place, you can only prolong the baking time of the batteries as much as possible, which will affect the baking capacity and waste energy; ②The consistency of the batteries in different ovens cannot be guaranteed; ③Regularly check the battery If the core is dry, the battery must be destroyed. Use a special moisture meter to measure the moisture, which will take a certain amount of time and may affect the normal production cycle.
Therefore, the inspection cost of this inspection method is very high.

Method used

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  • Online moisture measuring method, measuring device and measuring system
  • Online moisture measuring method, measuring device and measuring system

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] figure 1 shows an online moisture measurement method for online judgment of the dryness of the baked battery. refer to figure 1 , the online moisture measurement method includes:

[0030] Step S1, calculating the rate of change of the degree of vacuum in the oven;

[0031] Step S2, calculating the moisture value of the battery to be baked by using the vacuum degree change rate.

[0032] The idea of ​​this online moisture measurement method is: when the battery is heated to the temperature specified by the battery manufacturer in the oven, the vacuum valve is opened to vacuum according to a certain rhythm, such as opening for one minute, closing for two minutes, etc., allowing rhythm during the process. Variety. The opening and closing time of the vacuum valve can be set according to the specific conditions of the baking system. This way of ...

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Abstract

The invention discloses an online moisture measuring method, measuring device and measuring system. The online moisture measuring method, measuring device and measuring system are used for judging thedrying degree of a baked battery on line. The measuring method comprises the following steps of calculating the change rate of the vacuum degree in a baking oven; and calculating the moisture value of the baked battery by utilizing the change rate of the vacuum degree. The measuring device comprises a first module and a second module, wherein the first module is used for calculating the change rate of vacuum degree in the baking oven, and the second module is used for calculating the moisture value of the baked battery by utilizing the change rate of the vacuum degree. The measuring system comprises a vacuum degree measuring device, a temperature measuring device and an online moisture measuring device, wherein the vacuum degree measuring device is arranged in the baking oven, the temperature measuring device is arranged in the baking oven, and the online moisture measuring device is connected to the vacuum degree measuring device and the temperature measuring device. According to theonline moisture measuring method, measuring device and measuring system, the moisture value of the battery is calculated by utilizing the real-time environmental parameters in the baking oven, the baking consistency of the battery is good, the battery cannot be damaged, the production efficiency can be greatly improved, and the production cost can be greatly lowered.

Description

technical field [0001] The invention relates to the field of battery manufacturing, and more specifically relates to an online moisture measurement method, an online moisture measurement device and an online moisture measurement system capable of judging the dryness of the battery during the battery baking process. Background technique [0002] Baking and drying of lithium batteries is an indispensable key process for power batteries at present. The degree and consistency of baking and drying directly affect the performance and quality of lithium batteries. Especially when it comes to power battery packs, the consistency requirements for lithium batteries are very high. But for a long time, the baking of lithium batteries has been using the time control method. On the premise of determining the function of the oven, the baking of lithium batteries is completed by specifying the baking time of the oven. However, there are significant defects in this baking mode, which are ma...

Claims

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Application Information

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IPC IPC(8): F26B25/22F26B5/04
CPCF26B5/04F26B25/22
Inventor 廖翼兵吴和玮吴晗
Owner 深圳力士智造科技有限公司
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