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Graphene film, graphene supercapacitor and preparation method thereof

A graphene film and supercapacitor technology, which can be used in the manufacture of hybrid/electric double-layer capacitors, chemical instruments and methods, hybrid capacitor electrodes, etc., and can solve the problems of long time, difficulty in mass production, and high energy consumption

Active Publication Date: 2017-09-05
纳米新能源生命科技(唐山)有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a graphene film, a graphene supercapacitor and a preparation method thereof, which are used to solve the shortcomings of the graphene preparation methods in the prior art, such as long time consumption, high energy consumption, and difficulty in mass production. question

Method used

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  • Graphene film, graphene supercapacitor and preparation method thereof
  • Graphene film, graphene supercapacitor and preparation method thereof
  • Graphene film, graphene supercapacitor and preparation method thereof

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preparation example Construction

[0024] The invention provides a method for preparing a graphene film, such as figure 1 As shown, the method includes the following steps:

[0025] Step S110: coating the graphene oxide solution on the metal substrate.

[0026] Step S120: obtaining a graphene oxide film dried and solidified on the metal substrate under preset conditions. Optionally, the preset condition may include: drying the graphene oxide solution on the metal substrate to form a graphene oxide film, and passing the metal substrate to the graphite oxide film during the drying process. Alkene solution was pre-reduced.

[0027] Step S130: performing laser engraving and reduction treatment on the graphene oxide film to obtain a graphene film.

[0028] Step S140: separating the graphene film from the metal substrate.

[0029] In the preparation method of the graphene thin film provided by the present invention, the graphene oxide solution is coated on the metal substrate, dried and solidified, and then subje...

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Abstract

The invention discloses a graphene film, a graphene supercapacitor and a preparation method thereof, which are used to solve the shortcomings of the graphene preparation methods in the prior art, such as long time consumption, high energy consumption, and difficulty in mass production. question. The preparation method of the graphene film comprises: coating the graphene oxide solution on the metal substrate; obtaining the graphene oxide film dried and solidified on the metal substrate under preset conditions; performing laser on the graphene oxide film Engraving reduction treatment to obtain a graphene film; separating the graphene film from the metal substrate.

Description

technical field [0001] The invention relates to the field of preparation of electronic components, in particular to a graphene film, a graphene supercapacitor and a preparation method thereof. Background technique [0002] A supercapacitor is a new type of energy storage device between a physical capacitor and a secondary battery. This device is unique in its energy storage and release process, which is not only reflected in the high pulse rate charge and discharge process, but also has the advantages of high energy and high specific power, that is, the charge and discharge time is only tens of seconds, and its power density is comparable to that of Compared with batteries, it is 10 to 100 times higher; the energy density is 100 times that of physical capacitors. [0003] Among them, the electrode material is a key component of the supercapacitor, and the quality of the electrode material directly determines the charge and discharge performance of the supercapacitor. Resea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/198H01G11/32H01G11/84H01G11/86
CPCY02E60/13
Inventor 郝立星马贺然董新义郎佳星赵颖
Owner 纳米新能源生命科技(唐山)有限责任公司