Preparation method of a flexible three-dimensional porous graphene/polydimethylsiloxane composite triboelectric nanogenerator

A technology of dimethylsiloxane and nano-generators, applied in the direction of triboelectric generators, graphene, nano-carbon, etc., which can solve the problem that the three-dimensional porous graphene film flexible tribo-nanometer generators have not been realized, and it is difficult to fully utilize graphene characteristics, complex structure, etc., to achieve excellent electrical performance and work efficiency, good electrical output performance, and simple manufacturing process
CN108455574BActive Publication Date: 2021-06-11DONGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2021-06-11

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Abstract

The invention relates to a method for preparing a flexible three-dimensional porous graphene / polydimethylsiloxane composite friction nanogenerator, comprising: preparing a flexible three-dimensional porous graphene film by using an ice template method to assist gravity self-assembly, and using Joule heat The three-dimensional porous graphene / PDMS composite film is prepared by the method of assisted adsorption, and the three-dimensional porous graphene / PDMS composite film is connected with the current collector to prepare the triboelectric nanogenerator. The invention has a simple manufacturing process, uses graphene synthesized by chemical methods on the market, and has low cost; the prepared three-dimensional porous graphene / polydimethylsiloxane composite friction nanogenerator has a simple structure, is soft and light, and can be used in complex and multi-functional It is used in a variable environment, and has excellent mechanical properties and good cycle stability. Due to the good electrical conductivity of the graphene film and the large roughness of the PDMS surface, the generator has excellent electrical properties and working efficiency.
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Description

technical field

[0001] The invention belongs to the field of engine preparation, in particular to a method for preparing a flexible three-dimensional porous graphene / polydimethylsiloxane composite friction nanogenerator. Background technique

[0002] With the continuous development of human society, the global energy crisis is becoming more and more serious. However, in the process of energy utilization, mechanical friction consumes most of the energy. Therefore, it is particularly important to effectively harvest the energy lost by mechanical friction. Especially, with the rapid development of flexible electronics and wearable devices, the study of flexible mechanical energy harvesting devices has very important practical value and practical significance. Traditional flexible generators are generally divided into two categories: (1) use the principle of electromagnetic induction to generate electricity, this type of generator needs conductive coils and magnets, and are gen...

Claims

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