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Flexible stretchable zinc-air battery based on foam-based metal electrode and preparation

A zinc-air battery and base metal technology, applied in electrical components, battery electrodes, fuel cell-type half-cells and primary battery-type half-cells, etc. The effect of low cost and simple preparation method

Active Publication Date: 2020-11-10
重庆新申世纪新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The zinc electrodes mentioned above are all two-dimensional structure electrodes. Although they can be bent and have flexibility, the specific surface area of ​​the electrodes is small because the metal zinc cannot be fully used.
Three-dimensional solid zinc block electrode, not flexible

Method used

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  • Flexible stretchable zinc-air battery based on foam-based metal electrode and preparation
  • Flexible stretchable zinc-air battery based on foam-based metal electrode and preparation
  • Flexible stretchable zinc-air battery based on foam-based metal electrode and preparation

Examples

Experimental program
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Effect test

preparation example Construction

[0056] The preparation method of described copper plating / nickel sponge layer comprises the following steps:

[0057] A1. Cut the sponge film into small pieces, and dry them completely after ultrasonic cleaning;

[0058] A2, stick the dried sponge film on the rubber film, then solidify to get the bonded sponge-rubber film;

[0059] A3, put the bonded sponge-rubber film on SnCl 2 Vacuum immerse in hydrochloric acid solution for 10-60min, take it out and put it in PdCl 2 Vacuum immersion in hydrochloric acid solution for 10-60min, take out, and freeze-dry to obtain a surface-activated sponge-rubber film;

[0060] A4, immerse the surface-activated sponge-rubber film in an electroless copper-plating solution or a nickel-plating solution to deposit metallic copper or nickel on the surface to form a copper-plated layer or a nickel-plated layer to obtain a copper-plated nickel sponge layer.

[0061] In step A1, the sponge film is a polyurethane sponge film with a thickness of 0.1-...

Embodiment 1

[0084] This embodiment provides a method for preparing a flexible and stretchable zinc-air battery based on a foam-based metal electrode, including the following steps:

[0085] (1) Preparation of galvanized foam (anode) (such as figure 1 shown):

[0086] 1.1 Mix and stir Ecoflex-0030 silicone rubber A and B liquids at a weight ratio of 1:1 to form Ecoflex precursor liquid, pour Ecoflex precursor liquid into a glass mold with a depth of 1mm, put it in an oven at 60°C for 1 hour, and cross-link and cure to form Ecoflex rubber film.

[0087] 1.2 Cut the commercial polyurethane sponge film (~1mm thick) into small pieces, ultrasonically clean them with acetone, ethanol and deionized water for 10 minutes each, and put them in an oven at 60°C until they are completely dry.

[0088] 1.3 Stick a piece of dried polyurethane sponge film on the Ecoflex rubber film with Ecoflex precursor fluid, and cure at 60°C for 30 minutes. The polyurethane sponge film and the Ecoflex rubber film are...

Embodiment 2

[0103] This embodiment provides a method for preparing a flexible and stretchable zinc-air battery based on a foam-based metal electrode, including the following steps:

[0104] (1) Preparation of galvanized foam (anode):

[0105] 1.1 Mix and stir Ecoflex-0030 silicone rubber A and B liquids at a weight ratio of 1:1 to form Ecoflex precursor liquid, pour Ecoflex precursor liquid into a glass mold with a depth of 1mm, put it in an oven at 60°C for 1 hour, and cross-link and cure to form Ecoflex rubber film.

[0106] 1.2 Cut the commercial polyurethane sponge film (~1mm thick) into small pieces, ultrasonically clean them with acetone, ethanol and deionized water for 10 minutes each, and put them in an oven at 60°C until they are completely dry.

[0107] 1.3 Stick a piece of dried polyurethane sponge film on the Ecoflex rubber film with Ecoflex precursor fluid, and cure at 60°C for 30 minutes. The polyurethane sponge film and the Ecoflex rubber film are tightly bonded together. ...

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Abstract

The invention belongs to the field of intelligent energy storage devices, and particularly relates to a flexible stretchable zinc-air battery based on a foam metal electrode and preparation. The method comprises the steps: preparing a zinc anode and an air cathode with three-dimensional structures by respectively electroplating zinc and nickel on a metal foam or polymer foam substrate, performingcross-linking of a polymer electrolyte membrane on the electrodes and separating the cathode from the anode, and then performing edge sealing to obtain the flexible zinc-air battery with the sandwichstructure; and cutting the flexible zinc-air battery into a specific stretchable shape to obtain the flexible stretchable zinc-air battery. The flexible stretchable zinc-air battery not only can be charged and discharged, but also has good bendable, curly, distorted and stretchable characteristics, maintains stable charging and discharging performance after deformation, and has a good applicationprospect in the field of wearable devices.

Description

technical field [0001] The invention belongs to the technical field of intelligent energy storage devices, and in particular relates to a flexible and stretchable zinc-air battery based on a sponge-based metal electrode and its preparation. Background technique [0002] In recent years, flexible and stretchable electronic devices have received widespread attention and can be applied to high-tech fields such as smart wearables, robots, and artificial organs, and are considered to be one of the most promising research directions. Flexible and stretchable supercapacitors, lithium-ion batteries, lithium-sulfur batteries, alkaline batteries and other energy storage devices have been developed. Zinc-air batteries have a high energy density (1086Wh kg –1 ), low cost, safety, environmental protection and other advantages have attracted widespread attention. At present, some scientific research work on the preparation of flexible zinc-air batteries has made some progress, and flexi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/90H01M12/06
CPCH01M4/8657H01M4/9041H01M12/06
Inventor 钟澄曲盛祥韩晓鹏邓意达胡文彬
Owner 重庆新申世纪新材料科技有限公司
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