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A bendable and stretchable rechargeable linear zinc-air battery and its preparation method

A zinc-air battery and charging cable technology, which is applied to fuel cell-type half-cells and primary-battery-type half-cells, etc., can solve the energy devices of zinc-air batteries that are limited to rigid planes, non-rechargeable, and unsuitable for wearable devices. and other problems, to achieve the effect of preventing short circuit and the risk of electrolyte leakage, reducing weight and volume, good flexibility and stretchability

Active Publication Date: 2018-06-08
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[10-11] However, traditional zinc-air batteries are limited to rigid planar structures and are not rechargeable, so they are not suitable as energy devices for wearable devices.

Method used

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  • A bendable and stretchable rechargeable linear zinc-air battery and its preparation method
  • A bendable and stretchable rechargeable linear zinc-air battery and its preparation method
  • A bendable and stretchable rechargeable linear zinc-air battery and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0022] (1) The CNT array is prepared by chemical vapor deposition: the catalyst adopts the structure form of silicon (Si) / silicon dioxide (SiO 2 ) / alumina (Al 2 o 3 ) / iron (Fe) composites, where Al 2 o 3 It is located in the middle of the Si sheet and Fe, as a buffer layer, and Fe is used as the active component of the catalyst. They are respectively prepared by depositing a nanometer-thick film on the Si sheet by an electron beam evaporation coating device. Among them, SiO 2 layer thickness of 400 μm, Al 2 o 3 The layer thickness is 3 nm and the Fe layer thickness is 1.2 nm. Put the catalyst-coated Si base catalyst face up, with a larger SiO 2 The bottom is loaded, put into the quartz tube of the tube furnace, and close to the temperature sensing device of the tube furnace. The flow rate of the ventilation pipeline is adjusted as follows: argon: 400 sccm, hydrogen: 30 sccm; ethylene: 90 sccm. Connect the tubing. First turn on the argon, turn off the hydrogen and eth...

Embodiment 2

[0027] (1) The CNT array is prepared by chemical vapor deposition: the catalyst adopts the structure form of silicon (Si) / silicon dioxide (SiO 2 ) / alumina (Al 2 o 3 ) / iron (Fe) composites, where Al 2 o 3 It is located in the middle of the Si sheet and Fe, as a buffer layer, and Fe is used as the active component of the catalyst. They are respectively prepared by depositing a nanometer-thick film on the Si sheet by an electron beam evaporation coating device. Among them, SiO 2 layer thickness of 400 μm, Al 2 o 3 The layer thickness is 3 nm and the Fe layer thickness is 1.2 nm. Put the catalyst-coated Si base catalyst face up, with a larger SiO 2The bottom is loaded, put into the quartz tube of the tube furnace, and close to the temperature sensing device of the tube furnace. The flow rate of the ventilation pipeline is adjusted as follows: argon: 400 sccm, hydrogen: 30 sccm; ethylene: 90 sccm. Connect the tubing. First turn on the argon, turn off the hydrogen and ethy...

Embodiment 3

[0032] (1) The CNT array is prepared by chemical vapor deposition: the catalyst adopts the structure form of silicon (Si) / silicon dioxide (SiO 2 ) / alumina (Al 2 o 3 ) / iron (Fe) composites, where Al 2 o 3 It is located in the middle of the Si sheet and Fe, as a buffer layer, and Fe is used as the active component of the catalyst. They are respectively prepared by depositing a nanometer-thick film on the Si sheet by an electron beam evaporation coating device. Among them, SiO 2 layer thickness of 400 μm, Al 2 o 3 The layer thickness is 3 nm and the Fe layer thickness is 1.2 nm. Put the catalyst-coated Si base catalyst face up, with a larger SiO 2 The bottom is loaded, put into the quartz tube of the tube furnace, and close to the temperature sensing device of the tube furnace. The flow rate of the ventilation pipeline is adjusted as follows: argon: 400 sccm, hydrogen: 30 sccm; ethylene: 90 sccm. Connect the tubing. First turn on the argon, turn off the hydrogen and eth...

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Abstract

The invention belongs to the technical field of zinc air cells, and concretely relates to a flexible tensible chargable linear zinc air cell and a preparation method thereof. The preparation method comprises firstly preparing a PVA / PEO / KOH hydrogel electrolyte, then coating a zinc spring as an anode with the electrolyte and forming a solid through crosslinking, and dipping in a RuO2 ethanol suspension for coating, so as to obtain an oxygen evolution reaction catalytic layer, and finally wrapping the outermost layer with a staggered-orientation carbon nanotube membrane, so as to obtain the linear zinc air cell. Compared with a conventional cell, the zinc air cell possesses a brand-new structure, the special air electrode structure does not need a metal current collector and a binder, the weight and the volume of the cell are reduced, and thus the energy density and the power density of the cell are improved, and the structure is important innovation in the energy device field. Also, the cell possesses good flexibility and stretchability, the electrolyte of the cell is a solid, the short circuit danger in the bending and stretching process and the electrolyte leakage danger are effectively prevented, the cell is easy for braiding and integration, and therefore the cell possesses good application prospect for supplying power for wearable devices.

Description

technical field [0001] The invention belongs to the technical field of zinc-air batteries, and in particular relates to a rechargeable linear zinc-air battery and a preparation method thereof. Background technique [0002] Portable wearable devices with stretchable bending capabilities are an emerging and promising field, which has been extensively studied in areas such as smart clothing, smart bracelets, and foldable mobile phones. [1-6] Both flexible lithium-ion batteries and supercapacitors have been investigated for energy supply of flexible wearable devices, however, the limited energy density limits their applications. [7-9] Zinc-air battery is a kind of energy device with high volume energy density, which is suitable for providing long-term continuous energy supply for electronic equipment. At the same time, the process of zinc-air battery is relatively mature, the production cost is low, and the environmental pollution is small, which is suitable for large-scale comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M12/06
CPCH01M12/06
Inventor 彭慧胜徐一帆张晔
Owner FUDAN UNIV