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Multi-layer core-sheath structure composite filament for energy storage and preparation method of multi-layer core-sheath structure composite filament

A multi-layer structure and composite wire technology, which is applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., to achieve a wide range of application prospects.

Pending Publication Date: 2021-06-04
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The specific capacitance, energy density and power density currently used in fibrous supercapacitors need to be further improved

Method used

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  • Multi-layer core-sheath structure composite filament for energy storage and preparation method of multi-layer core-sheath structure composite filament
  • Multi-layer core-sheath structure composite filament for energy storage and preparation method of multi-layer core-sheath structure composite filament
  • Multi-layer core-sheath structure composite filament for energy storage and preparation method of multi-layer core-sheath structure composite filament

Examples

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preparation example Construction

[0032] A method for preparing a multi-hierarchy structure composite wire for energy storage, including the following steps:

[0033] S1, the titanium wire separately washed with the washing liquid, acetone, and clean water, respectively;

[0034] S2, ammonium fluid (NH 4 F) Water and ethylene glycol mixed solution, the molybdenum wire is fixed to the anode, and the oxidation is performed by platinum as a counter electrode, forming TiO. 2 / Ti core sheath structure composite wire;

[0035] S3, the composite wire in step S2 is cleaned with water and ethanol, respectively, and dried;

[0036] S4, will dry the TiO 2 / Ti-core sheath structure composite wire is placed in a tube furnace, under argon protection, by CVD deposition method in TiO 2 / Ti-core sheath structure composite wire surface growth 1 layer of carbon, forming C / TiO 2 / Ti multilayer structure composite wire;

[0037] S5, in C / TiO 2 / Ti multilayer structure composite wire composite wire surface further modifies a h...

Embodiment 1

[0046] 2 ml of water and 98 ml of ethylene glycol were mixed, and the water-ethylene glycol mixed solution was used as a water content of 2V%. 0.333 g of ammonium fluid was added to the above mixing solution, which was mounted to a water-ethylene glycol mixed solution containing 0.3 wt% fluorine fluid. In the electrolytic solution in this solution, a 1-row length is 20 cm, and a titanium wire having a diameter of 250 microns is fixed to the anode, and the electrode is used to use a platinum electrode, and the anodization of the anode oxidation is performed at normal temperature. The anode oxidation is 60 V, Time 5 hours, the oxidized titanium oxide / titanium composite wire was taken out and dried.

[0047] The titanium oxide / titanium composite wire was placed in a tubular reactor and warmed up to 650 degrees Celsius under argon protection of 200 SCCM gas flow. After the temperature reached 650 degrees, 10 sccm of hydrogen and acetylene of 20 sccm were introduced and maintained ...

Embodiment 2

[0049] 3 ml of water and 97 ml of ethylene glycol were mixed with a water-ethylene glycol mixed solution of 3 V%. 0.333 g of ammonium fluid was added to the above mixing solution, which was mounted to a water-ethylene glycol mixed solution containing 0.3 wt% fluorine fluid. In the electrolytic solution in this solution, the 1 row length is 20 cm and the diameter of 500 microns is fixed to the anode, and the electrode is used to use a platinum electrode, and the anodization is used for anodizing at normal temperature, and the anode oxidation is constant voltage 60V. At 7 hours, the titanium oxide / titanium composite filament obtained after oxidation was taken out and dried.

[0050] The titanium oxide / titanium composite wire was placed in a tubular reactor and warmed up to 700 degrees Celsius under argon protection of 200 Sccm gas flow. After the temperature reached 700 degrees, 10 SCCM hydrogen and acetylene of 20 sccm were introduced, and the conditions were maintained for 1 h...

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Abstract

The invention discloses a multi-layer core-sheath structure composite filament for energy storage and a preparation method of the multi-layer core-sheath structure composite filament. The multi-layer core-sheath structure composite filament comprises a titanium wire, a titanium dioxide nanotube array layer attached to the titanium wire, a porous carbon layer attached to the titanium dioxide nanotube array layer and a compound layer attached to the porous carbon layer. According to the invention, the specific capacitance, the energy density and the power density of the capacitor with the core sheath structure are further improved, and the filament is cheap and fine.

Description

Technical field [0001] The present invention relates to the technical field of electrode material, and more particularly to multi-hierarchical core sheath structures for energy storage and preparation methods thereof. Background technique [0002] In recent years, flexible smart devices and wearable electronics maintain a strong growth momentum, the market is very large, according to the "China Wearable Equipment Market Quarter Tracking Report", a Single Chinese Market, in accordance with the latest international data company IDC, Single Chinese market, 2019 Dear equipment shipments are as high as 99.24 million units. Intelligent portable equipment and the continued flourishing of wearable electronic products have driven electronics to continuously thin, flexible and integrated development. However, it has become a key issue that is constrained by portable equipment and wearable electronic products. How to develop flexible ultra-high performance energy storage devices become crit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/46H01G11/24H01G11/32H01G11/86
CPCH01G11/30H01G11/46H01G11/24H01G11/32H01G11/86
Inventor 薛裕华曹伟王文昊贡昀杨俊和
Owner UNIV OF SHANGHAI FOR SCI & TECH
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