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Thermal compounding method and device

A technology of heat compounding and equipment, applied in the field of heat compounding, can solve the problems of easy displacement and poor heating effect, and achieve long heating time and good effect

Pending Publication Date: 2019-06-25
SHENZHEN GDLASER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the problem of easy displacement between composite materials and poor heating effect in existing thermal compounding

Method used

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  • Thermal compounding method and device

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Embodiment Construction

[0025] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0026] In a specific embodiment, a thermal compounding method is disclosed. Taking thermally compounded battery pole piece and diaphragm as an example, on the one hand, the first composite material to be heated, that is, the battery pole piece, is transported to the upper hot pressing roller. Specifically, such as The pole piece is transported by belt transmission. Then, the first composite material to be heated, that is, the battery pole piece, is adsorbed on the surface of the upper hot pressing roller. Pressed air holes or air grooves, so that under the action of external atmospheric pressure, the battery pole piece is firmly adsorbed on the surface of the upper hot pressing roller, so that the relative displacement of the battery pole ...

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Abstract

The invention provides a thermal compounding method and device and relates to the technical field of thermal compounding. The key point is that a first material to be thermally compounded is always fixed by atmospheric pressure and thus tightly adsorbed onto the surface of an upper hot-pressing roller before being subjected to hot pressing, and does not generate relative displacement such that thefirst material to be thermally compounded and a second material to be thermally compounded can be pressed together well. In addition, the first material to be thermally compounded is always in a heated state during the adsorption by the upper hot-pressing roller, so as to be heated for a long time and final achieve a good hot-pressing effect. The thermal compounding method and device are especially suitable for thermal compounding between a battery pole piece and a diaphragm.

Description

technical field [0001] The invention relates to the technical field of thermal compounding, in particular to a thermal compounding method and equipment which can be used for thermal compounding of battery pole pieces. Background technique [0002] In the existing lithium battery lamination technology, the efficiency of the thermal composite lamination method is relatively high. Generally, the positive electrode sheet, negative electrode sheet, and separator need to be heated by a heating device before lamination, and the above-mentioned several should be crushed with an appropriate pressure. Press to make them stick together to form a whole. [0003] There are two main thermal lamination methods. The first one is to use an oven and pressure rollers. Place the positive and negative electrodes on the diaphragm, heat them in the oven, and then roll them between the upper and lower pressure rollers. , combined into a whole; the second is the use of heating rollers, the heating ...

Claims

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Application Information

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IPC IPC(8): H01M10/058H01M6/14
CPCY02E60/10Y02P70/50
Inventor 何林郑新华
Owner SHENZHEN GDLASER TECH CO LTD