Graphene thin film, graphene super capacitor and preparation method of graphene thin film and graphene super capacitor

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

Active Publication Date: 2015-09-30
纳米新能源生命科技(唐山)有限责任公司
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  • Abstract
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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

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  • Graphene thin film, graphene super capacitor and preparation method of graphene thin film and graphene super capacitor
  • Graphene thin film, graphene super capacitor and preparation method of graphene thin film and graphene super capacitor
  • Graphene thin film, graphene super capacitor and preparation method of graphene thin film and graphene super capacitor

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Example Embodiment

[0024] The invention provides a method for preparing 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: Obtain the graphene oxide film dried and solidified on the metal substrate under preset conditions. Optionally, the preset conditions may include: drying the graphene oxide solution on the metal substrate to form a graphene oxide film, and during the drying process, the graphite oxide is treated by the metal substrate The olefin solution is pre-reduced.

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

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

[0029] In the method for preparing the graphene film provided by the present invention, the graphene oxide solution is coated on a metal substrate, dried and cured, and then subjected to laser engraving a...

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Abstract

The invention discloses a graphene thin film, a graphene super capacitor and a preparation method of the graphene thin film and the graphene super capacitor, and aims at solving the common problems of defects of long time taken, high energy consumption, not easy large-batch preparation and the like of a graphene preparation method in the prior art. The preparation method of the graphene thin film comprises the following steps: coating a metal substrate with a graphene oxide solution; obtaining a graphene oxide thin film dried and cured on the metal substrate under preset conditions; performing laser carving reduction processing on the graphene oxide thin film to obtain the graphene thin film; separating the graphene thin 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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IPC IPC(8): C01B31/04H01G11/32H01G11/84H01G11/86
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
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