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A kind of preparation method of graphene heating film

A technology of ene heating film and graphene, which is applied in the field of graphene heating film preparation, to achieve the effect of good insulation performance, fast heating rate and excellent insulation performance

Active Publication Date: 2021-08-06
合肥市海洲新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a method for preparing a graphene heating film, which has the advantages of good heat resistance, high power density heating, excellent insulation performance and fast heating rate, and solves the problems mentioned in the above background technology

Method used

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  • A kind of preparation method of graphene heating film
  • A kind of preparation method of graphene heating film
  • A kind of preparation method of graphene heating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing a graphene heating film, comprising an insulating layer 1, a film-forming substrate 2 and a graphene heating core 3, the insulating layer 1 is wrapped on the surfaces of the film-forming substrate 2 and the graphene heating core 3, and the film-forming substrate The bottom of 2 is provided with a PI film 5, and the two sides of the PI film 5 are respectively in contact with the graphene heating core 3 and the insulating layer 1.

[0041] The present invention also provides a method for preparing a graphene heating film, comprising the following steps:

[0042]Step 1: Etch the copper-clad PI film 5, etch for 5 minutes in the erosive state of the etching solution, and the etching temperature is 15 degrees Celsius to form a conductive line 4, and one end of the conductive line 4 forms a lead joint, and the lead joints are respectively connected The positive and negative poles of the power supply, and then deposit a metal layer to obtain the film-form...

Embodiment 2

[0056] Embodiment two: the difference between this embodiment and embodiment one is:

[0057] A method for preparing a graphene heating film, comprising an insulating layer 1, a film-forming substrate 2 and a graphene heating core 3, the insulating layer 1 is wrapped on the surfaces of the film-forming substrate 2 and the graphene heating core 3, and the film-forming substrate The bottom of 2 is provided with a PI film 5, and the two sides of the PI film 5 are respectively in contact with the graphene heating core 3 and the insulating layer 1.

[0058] The present invention also provides a method for preparing a graphene heating film, comprising the following steps:

[0059] Step 1: Etching the copper-clad PI film 5, and etching it for 8 minutes in the erosive state of the etching solution, at an etching temperature of 18 degrees Celsius, to form a conductive line 4, one end of the conductive line 4 forms a lead joint, and the lead joints are respectively connected The positi...

Embodiment 3

[0073] Embodiment three: the difference between this embodiment and embodiment one and embodiment two is:

[0074] A method for preparing a graphene heating film, comprising an insulating layer 1, a film-forming substrate 2 and a graphene heating core 3, the insulating layer 1 is wrapped on the surfaces of the film-forming substrate 2 and the graphene heating core 3, and the film-forming substrate The bottom of 2 is provided with a PI film 5, and the two sides of the PI film 5 are respectively in contact with the graphene heating core 3 and the insulating layer 1.

[0075] The present invention also provides a method for preparing a graphene heating film, comprising the following steps:

[0076] Step 1: Etching the copper-clad PI film 5, etching it for 10 minutes in the erosive state of the etching solution, and the etching temperature is 20 degrees Celsius, to form a conductive line 4, one end of the conductive line 4 forms a lead joint, and the lead joints are respectively c...

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Abstract

The invention discloses a graphene heating film and a preparation method thereof, comprising an insulating layer, a film-forming substrate and a graphene heating core, the insulating layer is wrapped on the surface of the film-forming substrate and the graphene heating core, the The bottom of the film-forming substrate is provided with a PI film, and the two sides of the PI film are respectively in contact with the graphene heating core and the insulating layer. The graphene heating film provided by the invention has extremely high temperature resistance, can realize high power density heating, has excellent insulation performance, and has a fast heating rate. Experimental results show that the temperature resistance of the graphene heating film provided by the invention is greater than 250°C , excellent insulation performance, the leakage current is less than or equal to 2 mA for one minute under the condition of 2500VAC, and the insulation resistance is greater than or equal to 500MΩ, and the power density at 3-32v low voltage can reach 0.40-0.80W / cm2, which can meet the electric The heating rate of the battery is as high as 0.5-1.0°C / min, which is worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of electric heating materials, in particular to a method for preparing a graphene heating film. Background technique [0002] With the continuous emergence of new technologies in the electric heating industry, in the lithium battery industry that is widely used at present, the traditional resistance wire heating method can no longer meet the requirements of power battery temperature uniformity due to low electrothermal efficiency and extremely uneven temperature. A new type of resin-based heating film based on conductive fillers such as alkene appeared, and its surface heating characteristics can significantly improve temperature uniformity. It overcomes the weakness of traditional PTC heating plates that are bulky and resistance wire heating film products have poor temperature uniformity. The market favors. [0003] With the increase of customer experience feedback and the diversification of the needs of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/14H05B3/34
Inventor 朱传佳
Owner 合肥市海洲新材料科技有限公司