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Three-dimensional nanometer linear pore carbon material and manufacturing technology of high-voltage miniature supercapacitor

A three-dimensional nanotechnology, manufacturing process technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, nanotechnology, etc., can solve the problems of low energy density, small specific surface area, limitations, etc., to achieve high area capacity, increase ratio Surface area, low cost effect

Active Publication Date: 2018-11-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to factors such as small specific surface area, its energy density is low, which limits its practical application. How to obtain a carbon-based micro-supercapacitor with high energy density is an international research difficulty.

Method used

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  • Three-dimensional nanometer linear pore carbon material and manufacturing technology of high-voltage miniature supercapacitor
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  • Three-dimensional nanometer linear pore carbon material and manufacturing technology of high-voltage miniature supercapacitor

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Embodiment 1

[0029] A manufacturing process of a high-voltage three-dimensional nanowire-like porous carbon material micro-supercapacitor comprises the following steps:

[0030] (1) Using the hydrothermal method to prepare zinc oxide nanowires:

[0031] 1a) Add 0.4g of zinc chloride and 20g of sodium carbonate into 35ml of deionized water, mix and stir for 1 hour.

[0032] 1b) The above solution was added into a polytetrafluoroethylene reactor, and a hydrothermal reaction was carried out at 120° C. for 12 hours. After cooling, wash and centrifuge five times with deionized water and alcohol, and dry in an oven at 80°C.

[0033] (2) Using ultrasonic stirring method to uniformly disperse the zinc oxide nanowires in the photoresist:

[0034] 2a) Measure 9000A photoresist in the flask, and add zinc oxide nanowires to the photoresist at a mass fraction of 15%;

[0035] 2b) Put the flask into an ultrasonic cleaning machine, the ultrasonic time is 10 hours, and electric stirring is used at the ...

Embodiment 2

[0050] A manufacturing process of a high-voltage three-dimensional nanowire-like porous carbon material micro-supercapacitor comprises the following steps:

[0051] (1) Using the hydrothermal method to prepare zinc oxide nanowires:

[0052] 1a) Add 0.6g of zinc chloride and 20g of sodium carbonate into 35ml of deionized water, mix and stir for 1 hour.

[0053] 1b) The above solution was added into a polytetrafluoroethylene reactor, and a hydrothermal reaction was carried out at 120° C. for 12 hours. After cooling, wash and centrifuge five times with deionized water and alcohol, and dry in an oven at 80°C.

[0054] (2) Using ultrasonic stirring method to uniformly disperse the zinc oxide nanowires in the photoresist:

[0055] 2a) Measure 9000A photoresist in the flask, and add zinc oxide nanowires to the photoresist at a mass fraction of 10%.

[0056] 2b) Put the flask into an ultrasonic cleaning machine, the ultrasonic time is 10 hours, and electric stirring is used at the ...

Embodiment 3

[0064] A manufacturing process of a high-voltage three-dimensional nanowire-like porous carbon material micro-supercapacitor comprises the following steps:

[0065] (1) Using the hydrothermal method to prepare zinc oxide nanowires:

[0066] 1a) Add 0.4g of zinc chloride and 20g of sodium carbonate into 35ml of deionized water, mix and stir for 1 hour.

[0067] 1b) The above solution was added into a polytetrafluoroethylene reactor, and a hydrothermal reaction was carried out at 120° C. for 12 hours. After cooling, wash and centrifuge five times with deionized water and alcohol, and dry in an oven at 80°C.

[0068] (2) Using ultrasonic stirring method to uniformly disperse the zinc oxide nanowires in the photoresist:

[0069] 2a) Measure 9000A photoresist in the flask, and add zinc oxide nanowires in the photoresist at a mass fraction of 5%.

[0070] 2b) Put the flask into an ultrasonic cleaning machine, the ultrasonic time is 10 hours, and electric stirring is used at the s...

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Abstract

The invention relates to a three-dimensional nanometer linear pore carbon material. A thickness is 2-4 micron. The material has nanometer linear macropores, and a pore diameter is 80-120nm. The poresare overlapped to form a network structure. A mesopore with a 2-5nm size and a micropore below 2nm are arranged in the pore groove of each nanometer linear macropore. The macropores are generated through reducing and evaporating zinc oxide nanowires. The mesopores and the micropores are generated through activating the zinc oxide nanowires on macropore pipe walls. The material has advantages thatthrough activating cheap zinc oxide nanowires, three-dimensional hole structures which are connected are formed, which is good for the infiltration of an electrolyte; through a macropore-mesopore-micropore and other multistage pore channel structures, the specific surface area of a carbon material is increased; a miniature supercapacitor has a high area capacity and high cycle stability; a high-concentration bistrifluoromethane sulfonimide lithium electrolyte is used to expand the voltage window of a water system miniature supercapacitor and increase device energy density; and the technology is simple, cost is low and so on.

Description

technical field [0001] The invention belongs to the intersecting field of processing of supercapacitors and micro-nano devices, and in particular relates to a manufacturing process of a high-voltage three-dimensional nanowire-like porous carbon material micro-supercapacitor. Background technique [0002] Since the beginning of the 21st century, the integration of electronic devices has become higher and higher, and the size has become smaller and smaller. Micro supercapacitors, as a potential energy supply method for micro electronic components, are conducive to further reducing the size of electronic devices and helping portable smart electronic products to achieve more Multifunction. Based on the C-MEMS (Carbon Micro-Electro-Mechanical System) process, various carbon-based microdevices can be produced, which are widely used in microsensors, microdrivers and other fields. [0003] At present, micro-supercapacitors based on C-MEMS technology have high chemical stability, st...

Claims

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Application Information

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IPC IPC(8): H01G11/34H01G11/24H01G11/46H01G11/86B82Y30/00
CPCB82Y30/00H01G11/24H01G11/34H01G11/46H01G11/86Y02E60/13
Inventor 麦立强马鑫萸洪旭峰何亮
Owner WUHAN UNIV OF TECH
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