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Intelligent drying system for battery pole pieces and intelligent drying method for pole pieces

A battery pole piece and drying system technology, which is applied to the surface coating liquid device, pretreatment surface, coating, etc., can solve the problem of affecting the stability of the pole piece, unable to monitor the weight of the pole piece in real time, and unable to close the loop control pole Problems such as sheet drying, to achieve the effect of accurately controlling the drying rate

Inactive Publication Date: 2019-10-29
JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned scheme can reduce energy consumption to a certain extent, but the inventor has found in practice that this scheme still has the following defects at least: first, it is impossible to monitor the weight of the pole piece in real time; Dry, affecting the stability of the pole piece

Method used

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  • Intelligent drying system for battery pole pieces and intelligent drying method for pole pieces
  • Intelligent drying system for battery pole pieces and intelligent drying method for pole pieces
  • Intelligent drying system for battery pole pieces and intelligent drying method for pole pieces

Examples

Experimental program
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Effect test

Embodiment 1

[0031]An intelligent drying system for battery pole pieces, comprising a control device 1 and several pole piece ovens 2, several pole piece ovens 2 are arranged along the pole piece moving direction, each pole piece oven 2 is equipped with a weight detection device 3, the pole piece Both the oven 2 and the weight detection device 3 are connected in communication with the control device 1; the weight detection device 3 is used to detect the weight of the pole piece, and feeds back to the control device 1; the control device 1 is used to receive the weight signal fed back by the weight detection device 3, and Control pole piece oven 2. In the existing battery pole piece coating process, the drying parameters of the oven are generally set directly, without monitoring the weight of the pole piece, the drying rate of the pole piece in the oven cannot be accurately controlled, and the adhesion of the pole piece fluctuates greatly , leading to unstable performance of the pole piece,...

Embodiment 2

[0041] The difference from Example 1 is that the pole piece oven 2 in this example is a suspension oven. In the suspension oven, the pole piece is transported by suspension, which helps to reduce the friction of the pole piece during transportation.

[0042] Other structures are the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0044] A method for intelligent drying of battery pole pieces, comprising the following steps:

[0045] Transfer the coated pole piece to the pole piece oven 2, and then detect the pole piece weight;

[0046] Analyze and judge whether the weight of the pole piece is within the preset range, if so, keep the drying parameters of the pole piece oven 2 unchanged; if not, adjust the drying parameters of the pole piece oven 2 until the weight of the pole piece is within the preset range. within the set range.

[0047] It should be noted that, in the drying method of the present invention, since the ratio of incident ray intensity attenuation and the weight per unit area penetrating the pole piece are in a negative exponential relationship, the ray intensity I when the incident ray is not blocked by the pole piece is collected. 0 , The ray intensity I after the incident ray penetrates the pole piece, combined with the absorption coefficient λ per unit area of ​​the pole piece, the w...

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Abstract

The invention belongs to the technical field of battery production and manufacturing, and particularly relates to an intelligent drying system for battery pole pieces. The intelligent drying system for the battery pole pieces comprises a control device and a plurality of pole piece drying boxes, the plurality of pole piece drying boxes are arranged in the movement direction of the pole pieces, each pole piece drying box is provided with a weight detection device, the pole piece drying boxes and the weight detection devices are all in communication connection with the control device, the weightdetection devices are used for detecting the weight of the pole pieces and feeding back the weight of the pole pieces to the control device, the control device is used for receiving weight signals fed back by the weight detection devices and controlling the pole piece drying boxes. According to the intelligent drying system for the battery pole pieces, the weight of the pole pieces can be monitored in real time so that the drying speed of the pole pieces can be controlled, closed-loop control of pole piece drying can be further realized, the stability of the pole pieces can be improved, and then the quality of the pole pieces is improved. In addition, the invention further discloses an intelligent drying method for the battery pole pieces.

Description

technical field [0001] The invention belongs to the technical field of battery production and manufacturing, and in particular relates to an intelligent drying system for battery pole pieces and a method for intelligently drying the pole pieces. Background technique [0002] Today, as a new type of secondary battery, lithium-ion batteries have the advantages of high energy density and power density, high working voltage, light weight, small size, long cycle life, good safety, and environmental protection. , Large energy storage, electric transportation power supply and so on have broad application prospects. The lithium-ion battery electrode is a coating composed of particles, which is evenly coated on the metal current collector. The coating of lithium-ion battery pole pieces can be regarded as a composite material. During the manufacturing process of lithium-ion battery pole pieces, drying equipment needs to be used for drying treatment. The existing drying equipment has ...

Claims

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Application Information

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IPC IPC(8): B05D3/04
CPCB05D3/0413
Inventor 张太宏丁阳臧运凯姚伟康
Owner JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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