Coaxial line super capacitor with shape memory and preparation method thereof

A technology of supercapacitors and coaxial cables, which is applied in the field of shape memory linear supercapacitors and its preparation, and can solve problems such as research on high performance linear supercapacitors without shape memory

Inactive Publication Date: 2016-02-24
FUDAN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is particularly important to develop an energy storage device that can meet various needs and realize user-defined shapes. So far, there is no related research on high-performance linear supercapacitors with shape memory, which is mainly limited by electrode materials.

Method used

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  • Coaxial line super capacitor with shape memory and preparation method thereof
  • Coaxial line super capacitor with shape memory and preparation method thereof
  • Coaxial line super capacitor with shape memory and preparation method thereof

Examples

Experimental program
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Embodiment Construction

[0020] First, the preparation of shape memory polyurethane fibers

[0021] Polyurethane particles were dissolved in N,N-dimethylformamide to prepare a 6g / mL viscous solution, and the solution was injected into the coagulation solution (V H2O :V DMF =1:1), the diameter of the fiber can be controlled by controlling the diameter of the needle and the injection speed. Put the shape memory fibers left in the coagulation solution for 10 minutes into distilled water for further coagulation, take them out and dry them at 60° C. for 1 hour.

[0022] Second, the preparation of shape-memory coaxial supercapacitors

[0023] Fix the two ends of the prepared shape memory fiber on two motors, put a spinnable carbon nanotube array on the translation platform, then pull the carbon nanotube film out of the array, and put it on the elastic at a certain angle. on the fiber. When the two motors and the translation stage are turned on at the same time, the continuous carbon nanotube film will b...

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Abstract

The present invention belongs to the technical field of coaxial line super capacitors and particularly relates to a coaxial line super capacitor with shape memory performance and a preparation method thereof. According to the super capacitor, a shape memory polymer fiber wrapped by an aligned carbon nanotube film is used as the inner electrode of the super capacitor, and the surface of the inner electrode is an H3PO4-PVA gel electrolyte layer. The electrolyte layer is wrapped by an aligned carbon nanotube film as an outer electrode. The surface of the outer electrode is provided with a layer of H3PO4-PVA gel electrolyte layer. According to the coaxial line super capacitor, by using the polymer fiber with a shape memory function, the coaxial line super capacitor with the shape memory performance is prepared. The specific capacitance of the supercapacitor reaches 24Fg-1, and the super capacitor can be shaped into different curvatures and different lengths and can return to an original shape when the super capacitor reaches a transition temperature. According to the coaxial line super capacitor with shape memory performance, a new way of thinking is provided for the preparation of other multi-functional electronic devices and wearable energy devices.

Description

technical field [0001] The invention belongs to the technical field of supercapacitor preparation, and in particular relates to a shape-memory linear supercapacitor and a preparation method thereof. Background technique [0002] The development of flexible wearable portable devices has been vigorous in recent years, and this field is also the mainstream direction of future electronic device development. In order to meet the multifaceted demands in practical applications, it is urgent to develop high-performance, integrable and multifunctional energy devices to power various electronic devices. In addition, the miniaturization of energy devices is another important development direction. Fabricating energy devices into fibers is one of the effective means. In recent years, a series of micro energy storage devices have been developed, such as fiber-shaped supercapacitors and lithium-ion batteries. However, these devices only have a single shape, which is difficult to meet th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/36H01G11/40H01G11/84H01G11/86
CPCY02E60/13H01G11/36H01G11/40H01G11/84H01G11/86
Inventor 彭慧胜邓珏张晔
Owner FUDAN UNIV
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