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All-solid-state flexible and stretchable fibrous aluminum air battery and preparation method thereof

A fibrous aluminum and air battery technology, which is applied to battery electrodes, fuel cell half-cells, primary battery-type half-cells, circuits, etc., can solve the problems that cannot meet the requirements of flexibility and stretchability, and achieve large-scale Effects of scale application, weight and volume reduction, prevention of short circuit and electrolyte leakage

Active Publication Date: 2016-07-27
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional aluminum-air batteries are usually rigid structures, [13-14] This cannot meet the flexible and stretchable requirements of next-generation flexible wearable electronics

Method used

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  • All-solid-state flexible and stretchable fibrous aluminum air battery and preparation method thereof
  • All-solid-state flexible and stretchable fibrous aluminum air battery and preparation method thereof
  • All-solid-state flexible and stretchable fibrous aluminum air battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) CNT arrays were prepared by chemical vapor deposition: a catalyst was prepared by depositing a nanometer-thick film on a Si wafer by an electron beam evaporation coating device, and its composition was silicon (Si) / silicon dioxide (SiO 2 ) / alumina (Al 2 o 3 ) / iron (Fe), Al 2 o 3 As a buffer layer between the silicon wafer and Fe, Fe acts as a catalyst. Among them, SiO 2 layer thickness of 400 μm, Al 2 o 3 The layer thickness was 3 nm, and the Fe layer thickness was 1.2 nm. Put the catalyst-coated Si substrate catalyst side up, use a larger silicon wafer as the substrate, and put it into the quartz tube of the tube furnace, near the central part of the tube furnace. Adjust the flow rate of the ventilation pipeline as follows: Argon: 400 sccm; Hydrogen: 30 sccm; Ethylene: 90 sccm. Connect the tubing. First turn on the argon, turn off the hydrogen and ethylene gases. Ventilate at room temperature for 10 minutes to ensure the removal of oxygen and water vapor ...

Embodiment 2

[0027] (1) CNT arrays were prepared by chemical vapor deposition: a catalyst was prepared by depositing a nanometer-thick film on a Si wafer by an electron beam evaporation coating device, and its composition was silicon (Si) / silicon dioxide (SiO 2 ) / alumina (Al 2 o 3 ) / iron (Fe), Al 2 o 3 As a buffer layer between the silicon wafer and Fe, Fe acts as a catalyst. Among them, SiO 2 layer thickness of 400 μm, Al 2 o 3 The layer thickness was 3 nm, and the Fe layer thickness was 1.2 nm. Put the catalyst-coated Si substrate catalyst side up, use a larger silicon wafer as the substrate, and put it into the quartz tube of the tube furnace, near the central part of the tube furnace. Adjust the flow rate of the ventilation pipeline as follows: Argon: 400 sccm; Hydrogen: 30 sccm; Ethylene: 90 sccm. Connect the tubing. First turn on the argon, turn off the hydrogen and ethylene gases. Ventilate at room temperature for 10 minutes to ensure the removal of oxygen and water vapor ...

Embodiment 3

[0032] (1) CNT arrays were prepared by chemical vapor deposition: a catalyst was prepared by depositing a nanometer-thick film on a Si wafer by an electron beam evaporation coating device, and its composition was silicon (Si) / silicon dioxide (SiO 2 ) / alumina (Al 2 o 3 ) / iron (Fe), Al 2 o 3 As a buffer layer between the silicon wafer and Fe, Fe acts as a catalyst. Among them, SiO 2 layer thickness of 400 μm, Al 2 o 3 The layer thickness was 3 nm, and the Fe layer thickness was 1.2 nm. Put the catalyst-coated Si substrate catalyst side up, use a larger silicon wafer as the substrate, and put it into the quartz tube of the tube furnace, near the central part of the tube furnace. Adjust the flow rate of the ventilation pipeline as follows: Argon: 400 sccm; Hydrogen: 30 sccm; Ethylene: 90 sccm. Connect the tubing. First turn on the argon, turn off the hydrogen and ethylene gases. Ventilate at room temperature for 10 minutes to ensure the removal of oxygen and water vapor ...

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Abstract

The invention belongs to the technical field of aluminum air batteries, and particularly discloses an all-solid-state flexible and stretchable fibrous aluminum air battery and a preparation method thereof. According to the method, a hydrogel electrolyte is firstly prepared by a cyclic freezing method; the electrolyte coats an aluminum spring at a negative electrode and is crosslinked into a solid state; and staggered oriented carbon nanotube films evaporated with silver nanoparticles coat the outmost layer to obtain the fibrous aluminum air battery. The special air electrode structure does not need a metal current collector or a binder. Due to the structural design, the fibrous aluminum air battery has excellent electrochemical properties; the specific capacity can reach 935mAh / g; and the energy density can reach 1168Wh / kg. The battery also has flexibility and stretchability. The electrolyte is in the solid state, so that the risks of a short circuit and an electrolyte leakage in the bending and stretching process can be effectively prevented; the battery is easy to weave and integrate; and the battery can be woven into energy storage fabrics to provide energy for a wearable electronic device, and large-scale application is excepted to be achieved.

Description

technical field [0001] The invention belongs to the technical field of aluminum-air batteries, and in particular relates to a fibrous aluminum-air battery and a preparation method thereof. Background technique [0002] Human demand for high-performance energy storage devices is increasing day by day. [1-5] Due to the advantages of environmental protection, low cost and high capacity, metal-air batteries have been widely studied as a new generation of functional batteries. [6] Metal-air batteries utilize oxygen in the air as the positive active material, which results in them having a higher theoretical energy density than conventional batteries such as lithium-ion batteries [7] . Aluminum-air batteries have a theoretical energy density of up to 2796Wh / kg, which is more than ten times the energy density of commercial lithium-ion batteries [8-12] . However, traditional aluminum-air batteries are usually rigid structures, [13-14] This cannot meet the flexible and stretchab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06H01M4/86H01M4/90H01M4/96
CPCH01M4/8647H01M4/9083H01M4/96H01M12/06H01M2300/0085
Inventor 彭慧胜徐一帆赵阳
Owner FUDAN UNIV
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