Lithium battery pole piece coating thickness detection device, system and method
A technology of thickness detection and lithium battery, which is applied in the field of metrology, can solve the problems of not considering the synchronous scanning of the scanning frame, inaccurate coating amount, and inconsistent trajectory.
Active Publication Date: 2021-08-20
浙江双元科技股份有限公司
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refer to figure 1 , the solid line 1 is the scanning trajectory before the pole piece is coated, the dotted line 2 is the scanning trajectory obtained after the first coating of the pole piece, and the dotted line 3 is the scanning trajectory obtained by scanning the pole piece after the second coating, and now In the existing technology, the problem of synchronous scanning of each scanning frame is not considered, resulting in that the trajectory obtained by each scanning cannot be guaranteed to be consistent, and the positions of thickness detection are inconsistent, which leads to inaccurate coating amounts obtained by subsequent calculations
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[0039] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0040] refer to figure 2 , in some embodiments, a lithium battery pole piece coating thickness detection device is provided, including a primary scanning frame 1 and at least one coating detection scanning frame 2, the primary scanning frame 1 is equipped with a first control device 101, a first scanning frame The device 102 and the first speed detection device 103; the second control device 201, the second scanning device 202 and the second speed detection device 203 are installed on the coating detection scanning frame 2;
[0041] The first control device 101 is used to control the first scan device 102 to scan the pole piece for the first time, and the second control device 202 is used to start the second tape speed detected by the first scan...
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The invention discloses a lithium battery pole piece coating thickness detection device, system and method. The device comprises a primary scanning frame and at least one coating detection scanning frame, wherein the primary scanning frame is provided with a first control device, a first scanning device and a first speed detection device; a second control device, a second scanning device and a second speed detection device are mounted on the coating detection scanning frame; control devices and speed detection devices are arranged on the multiple scanning frames, so that initial scanning synchronization of multiple scanning devices is achieved through signal interaction between the control devices and speed measurement of the speed detection devices, the scanning speed of the scanning devices is controlled through speed measurement of the speed detection devices, and the same scanning track slope is achieved, and therefore, the same track of the thickness information scanned and collected each time is ensured to the greatest extent, the accuracy of the thickness information is ensured, and the accuracy of subsequent coating weight calculation is improved.
Description
technical field [0001] The invention relates to the technical field of metering, in particular to a device, system and method for detecting coating thickness of lithium battery pole pieces. Background technique [0002] In the coating process of lithium battery pole pieces, it is often necessary to install a scanning device on the scanning frame to detect the coating thickness after each coating process. Patent document CN110108239B discloses a pole piece quality information acquisition method, system and equipment. The scanning device scans the target pole piece through the set scanning parameters to obtain scanning data. The scan data includes pole piece thickness data or pole piece weight data. The scanning device scans each pole piece in the form of flowing water. It scans from one side of the pole piece, and then returns to the other side. It scans repeatedly in this way, and extracts the corresponding scanning time by calculating the scanning time period. The data in ...
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IPC IPC(8): B05C11/10
CPCB05C11/1005B05C11/1013
Inventor 郑建胡美琴武锐锋
Owner 浙江双元科技股份有限公司