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Novel preparation method of supercapacitor

A supercapacitor, a new type of technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, nanotechnology for materials and surface science, etc., can solve the problems of complex methods and high preparation costs, and achieve simple preparation methods. The effect of low cost and convenient industrial production and preparation

Active Publication Date: 2017-01-04
SHANDONG GOLDENCELL ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Now the preparation of nanoporous metals mainly adopts dealloying technology, but this method is expensive and complicated.
Preparation of suitable nanoporous materials requires electrochemical stripping of unwanted metal atoms, which generates a lot of waste

Method used

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preparation example Construction

[0017] The invention provides a preparation method of a novel supercapacitor. The technical scheme adopted is: add the aqueous solution used to prepare the precursor of nano-metal particles in the aqueous solution containing polyphosphate, add the borohydride compound as the reducing agent under the condition of stirring, and use the chemical redox method in the aqueous solution The nanoporous gold-silver solid composite material is prepared in one step after a certain reaction time, and the nanoporous gold-silver film is made by rolling or stamping multiple times as a supercapacitor pole piece, and the microelectrode array is formed by polarization as the positive and negative electrodes of the supercapacitor. Supercapacitors were fabricated by assembly in a glove box.

[0018] The preparation method specifically comprises the following steps:

[0019] (1) Add the aqueous solution used to prepare the precursor of nano-metal particles into the aqueous solution containing poly...

Embodiment 1

[0024] Take 10mL of 5mmol / L tetrachloroalloy acid aqueous solution and 10mL of 5mmol / L silver nitrate aqueous solution and add them to 100mL 4mmol / L sodium polyphosphate solution, and add 5mL 1mmol / L hydroboration solution dropwise under stirring conditions. Sodium aqueous solution, stirring continuously at room temperature for 30 minutes, promptly obtains the nanoporous gold-silver solid composite material; Its appearance is as follows figure 1 shown.

[0025] The nanoporous gold-silver film prepared by 10 times of rolling has a thickness of 1000 μm. It is used as a pole piece of a supercapacitor by punching, and its diameter is 2cm. After polarization, a microelectrode array is formed as the positive and negative electrodes of the supercapacitor. The supercapacitor was prepared by assembling in the middle, and its capacity was tested to be 5F.

Embodiment 2

[0027] Take 5mmol / L tetrachloroalloy acid aqueous solution 5mL and 5mmol / L silver nitrate aqueous solution 10mL and add it to 100mL 4mmol / L sodium polyphosphate solution, and add 5mL 1mmol / L hydroboration solution dropwise under stirring condition Sodium aqueous solution, stirring continuously at room temperature for 30 minutes, promptly obtains the nanoporous gold-silver solid composite material; Its appearance is as follows figure 1 shown.

[0028] The nanoporous gold-silver film prepared by 25 times of rolling, with a thickness of 100 μm, was stamped as a pole piece of a supercapacitor with a diameter of 2 cm; after polarization, a microelectrode array was formed as the positive and negative poles of the supercapacitor, in the glove box Supercapacitors were prepared by assembling, and their capacity was tested to be 2F.

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Abstract

The invention provides a preparation of a high-performance miniature supercapacitor. In the technical scheme, the preparation method comprises the following steps of (1) adding an aqueous solution used for preparing a nanometer metal particle precursor in an aqueous solution containing polyphosphate, adding a boron hybrid as a reducing agent under the condition of stirring, and preparing a nano-porous gold-silver solid composite material after reaction for 0.5-2 hours; (2) preparing a nano-porous gold-silver thin film as a pole plate of the supercapacitor after rolling for many times, and preparing a supercapacitor pole plate by punching; and (3) forming microelectrode arrays as a positive electrode and a negative electrode of the supercapacitor through polarization, and preparing the supercapacitor through assembly in a glove box. A simple chemical reduction method is used for preparing nano-porous metal, reaction can be completed in one time in a room temperature, and different nano-porous metals are prepared.

Description

technical field [0001] The invention relates to a method for preparing a novel supercapacitor, in particular to a method for preparing a high-performance miniature supercapacitor. Background technique [0002] In recent years, the world's energy system is in the process of rapid transformation, and new energy has emerged from the existing energy pattern and has become a new idea and new model for energy development in countries around the world. In the field of scientific research, exploring, utilizing and developing the role of various new materials and technologies in the new energy system, guiding and promoting economic and social transformation, has become one of the common focuses of the scientific and technological circles. In recent years, a new class of metal nanostructure materials—especially nanoporous metals—have been used in various high-efficiency energy storage and conversion technologies such as proton exchange membrane fuel cells, supercapacitors, and lithium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/26H01G11/86B82Y30/00
CPCY02E60/13H01G11/30B82Y30/00H01G11/26H01G11/86
Inventor 关成善宗继月李涛单传省周会
Owner SHANDONG GOLDENCELL ELECTRONICS TECH