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A flexible and stretchable zinc-air battery based on foam-based metal electrodes and its preparation

A zinc-air battery and base metal technology, which is applied in the direction of electrical components, battery electrodes, fuel cell half-cells, and primary battery-type half-cells, can solve the problems of small specific surface area and lack of flexibility of electrodes, and achieve preparation The method is simple, the cost is low, and the effect of stable charging and discharging performance

Active Publication Date: 2022-06-24
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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  • A flexible and stretchable zinc-air battery based on foam-based metal electrodes and its preparation
  • A flexible and stretchable zinc-air battery based on foam-based metal electrodes and its preparation
  • A flexible and stretchable zinc-air battery based on foam-based metal electrodes and its preparation

Examples

Experimental program
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Effect test

preparation example Construction

[0056] The preparation method of the copper-plated / 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, and then solidify to obtain a bonded sponge-rubber film;

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

[0060] A4. Soak 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 plating or nickel plating layer to obtain a copper / nickel sponge layer.

[0061] In step A1, the sponge film is a polyurethane sponge film with a thickness of 0.1-1mm;

[0062] In s...

Embodiment 1

[0084] This embodiment provides a preparation method of a flexible stretchable zinc-air battery based on a foam-based metal electrode, comprising the following steps:

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

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

[0087] 1.2 The commercial polyurethane sponge film (~1mm thick) was cut into small pieces, ultrasonically cleaned with acetone, ethanol and deionized water for 10 min each, and then placed in a 60°C oven to dry completely.

[0088] 1.3 A piece of dried polyurethane sponge film was adhered to the Ecoflex rubber film with Ecoflex precursor liquid, and cured at 60°C for 30 minutes, and the polyurethane sponge film and the Ecoflex rubber film were tightly bonded...

Embodiment 2

[0103] This embodiment provides a preparation method of a flexible stretchable zinc-air battery based on a foam-based metal electrode, comprising the following steps:

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

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

[0106] 1.2 The commercial polyurethane sponge film (~1mm thick) was cut into small pieces, ultrasonically cleaned with acetone, ethanol and deionized water for 10 min each, and then placed in a 60°C oven to dry completely.

[0107] 1.3 A piece of dried polyurethane sponge film was adhered to the Ecoflex rubber film with Ecoflex precursor liquid, and cured at 60°C for 30 minutes, and the polyurethane sponge film and the Ecoflex rubber film were tightly bonded together.

[0108] ...

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Abstract

The invention belongs to the field of intelligent energy storage devices, in particular to a flexible and stretchable zinc-air battery based on foam metal electrodes and its preparation. The present invention prepares zinc anode and air cathode with a three-dimensional structure by electroplating zinc and electroplating nickel respectively on the metal foam or polymer foam substrate, cross-links the electrodes with a polymer electrolyte membrane and separates the cathode and anode, and then seals the edges to obtain Flexible zinc-air battery with sandwich structure. A flexible and stretchable zinc-air battery is obtained by cutting the flexible zinc-air battery into a specific stretchable shape. The flexible and stretchable zinc-air battery can not only be charged and discharged, but also has good bendable, curled, twisted and stretchable properties, and keeps stable charge and discharge performance after deformation, which has good applications in the field of wearable devices prospect.

Description

technical field [0001] The invention belongs to the technical field of intelligent energy storage devices, in particular to a flexible and stretchable zinc-air battery based on a sponge-based metal electrode and its preparation. Background technique [0002] This year, flexible and stretchable electronic devices have received extensive 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 energy storage devices such as supercapacitors, lithium-ion batteries, lithium-sulfur batteries, and alkaline batteries have been developed. Zinc-air batteries have high energy density (1086Wh kg –1 ), low cost, safety, environmental protection and other advantages have been widely concerned. At present, some scientific research work on the preparation of flexible zinc-air batteries has made some progress, and flexible zinc-air batteries are p...

Claims

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Application Information

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Patent Type & Authority Patents(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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