Temperature and humidity tracking monitoring system and method applicable to lithium battery or pole piece vacuum baking line

Abstract

The invention discloses a temperature and humidity tracking monitoring system and a method applicable to a lithium battery or pole piece vacuum baking line. According to the system, RFID temperature and humidity tags are arranged in different positions of a material conveying trolley; the RFID temperature and humidity tags are capable of acquiring temperature data and humidity data of holding areas in real time, and uploading the data to an RFID reader; the RFID reader is used for transmitting the data to a control module; after the data are processed by the control module, whether the heating temperature, the vacuum degree and the cooling speed need to be adjusted or not can be judged, if necessary, an instruction is transmitted to a heating device, a vacuuming interface and a cooling device for adjustment, and thus control on the temperature, the vacuum degree and the cooling speed of a baked pole piece or a battery can be achieved. As the RFID temperature and humidity tags are arranged near a baked article and can move together with the baked article, the actual temperature of the baked article can be relatively accurately reflected when being compared with that tested by using a temperature sensor at a fixed point in a tunnel; in addition, the system and the method are applicable to measurement in different areas, and tracking measurement of the baked article can be achieved; moreover, feedback of the heating device, the vacuuming interface and the cooling device can be relatively efficient and accurate due to relatively accurate temperature and humidity measurement, and the temperature, the vacuum degree and the cooling speed of the baked pole piece and the battery can be stabilized.

Description

technical field [0001] The invention belongs to the technical field of lithium battery pole piece or lithium battery baking, and more specifically relates to a temperature and humidity tracking monitoring system and method suitable for a lithium battery or pole piece vacuum baking line. Background technique [0002] In the production of lithium battery pole pieces and the manufacturing process of lithium batteries, the baking of pole pieces and the baking of batteries are very important process links. The temperature uniformity and water content during baking directly affect the quality of the final battery , performance and service life. Chinese patent document CN104134777A discloses a method for vacuum baking line lithium-ion batteries or battery pole pieces. The vacuum baking line method can adopt continuous operation, which can shorten the baking time and better realize the automation of the production line. Compared with the traditional single Body ovens are more advan...

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Problems solved by technology

[0003] The vacuum baking line method requires real-time detection and control of the temperature and humidity of each part of the oven. Chinese patent document 104199491A discloses a tunnel oven monitoring system, which is equipped with temperature control in each baking area of ​​the tunnel. to collect the temperature status of each area and upload it to the control module, but this system can only measure the temperature at a fixed point in the main body 4 of the vacuum baking line, and cannot accurately reflect the temperature of the baked goods in the main body 4 of the vacuum baking line The temperature changes during the entire operation process cannot adapt to the temperature measurement of lithium battery pole pieces or lithium batteries in different states and different batches

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