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Preparation method of zinc metal-air battery

An air battery, zinc metal technology, applied in the electrode of primary battery, electrode manufacturing, battery electrode and other directions, can solve problems such as unfavorable assembly of multi-unit batteries, low voltage, inability to discharge at high rate, etc., to avoid plate strength And the conductivity is reduced, the internal resistance is small, and the effect of meeting the effect of high current and short time discharge is satisfied.

Inactive Publication Date: 2014-04-02
HUNAN SOUNDDON NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The air electrode of a traditional zinc metal-air battery includes a catalytic layer, a current collector, and a diffusion layer. The multi-metal oxide is used as a catalyst, which is suitable for a single battery. The voltage is not high, which is not conducive to assembly into a multi-unit battery, and it cannot be discharged at a high rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 1. Weigh 300g of perovskite catalyst, the metal ion molar ratio of lanthanum: calcium: cobalt = 3:2:5, weigh 700g of manganese dioxide powder, weigh 10g of activated carbon, 10g of acetylene black, and 50g of sodium sulfate. Sodium chloride 50g, carboxymethyl cellulose 50g, polytetrafluoroethylene 50g, alcohol 100g, water 100g;

[0043] 2. The material weighed in the above step 1 is fully stirred in a closed mixer to make the mixture into a fluid paste state, and then both sides are coated on foam nickel, dried at 120°C, and heated by roller After pressing and cutting, it is the positive plate;

[0044] 3. Weigh 1000g zinc powder, 50g zinc oxide powder, 200g 5% polyvinyl alcohol, 50g saturated sodium hydroxide solution, 10g sodium carbonate, 10g sodium borate, HPMC hydroxypropyl methylcellulose 50g, PTFE polytetrafluoroethylene 100g of ethylene;

[0045] 4. The material weighed in the above step 3 is fully stirred in a closed mixer to make the mixture into a fluid paste stat...

Embodiment 2

[0049] 1. Weigh 100g perovskite catalyst, the molar ratio of metal ion lanthanum: calcium: nickel = 3:2:5, weigh 900g manganese dioxide powder, weigh 25g activated carbon, 25g acetylene black, and 100g potassium sulfate. Potassium chloride 100g, carboxymethyl cellulose 100g, polytetrafluoroethylene 100g, alcohol 300g, water 200g;

[0050] 2. The material weighed in the above step 1 is fully stirred in a closed mixer to make the mixture into a fluid paste state, and then evenly coated on both sides of the nickel-plated steel mesh, dried at 130°C, and heated by rollers After pressing and cutting, it becomes the positive plate;

[0051] 3. Weigh 1000g zinc powder, 150g zinc oxide powder, 300g 5% polyvinyl alcohol, 100g saturated calcium hydroxide solution, 25g potassium carbonate, 25g potassium borate, 150g HPMC hydroxypropyl methylcellulose, PTFE polytetrafluoroethylene 200g of ethylene;

[0052] 4. The material weighed in the above step 3 is fully stirred in a closed mixer to make t...

Embodiment 3

[0056] 1. Weigh 500g of perovskite catalyst, the molar ratio of metal ion lanthanum: calcium: cobalt = 3:2:5, weigh 500g of manganese dioxide powder, weigh 20g of activated carbon, 20g of acetylene black, and 80g of sodium sulfate. 80g ammonium chloride, 80g carboxymethyl cellulose, 80g polytetrafluoroethylene, 200g alcohol, 150g water;

[0057] 2. The material weighed in the above step 1 is fully stirred in a closed mixer to make the mixture into a fluid paste, and then evenly coated on both sides of the foamed nickel, dried at 160℃, and pressed by a roller. After cutting, it becomes the positive plate;

[0058] 3. Weigh 1000g zinc powder, 100g zinc oxide powder, 250g 5% polyvinyl alcohol, 80g saturated potassium hydroxide solution, 20g sodium carbonate, 20g sodium borate, 100g HPMC hydroxypropyl methylcellulose, PTFE polytetrafluoroethylene 150g of ethylene;

[0059] 4. The material weighed in the above step 3 is fully stirred evenly in a closed mixer to make the mixture into a f...

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PUM

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Abstract

The invention discloses a preparation method of a zinc metal-air battery. The preparation method of the zinc metal-air battery comprises the following steps: (1) preparing a positive electrode plate: mixing multi-metal oxides, manganese dioxide, chloride, sulfate, activated carbon, acetylene black, CMC (Carboxy Methylated Cellulose), PTFE (Polytetrafluoroethylene) and alcohol uniformly, and then coating on a current collector, drying and carrying out roller hot-pressing, thereby obtaining the positive electrode plate; (2) preparing a negative electrode plate: adding zinc, zinc oxide, poval, carbonate, borate, PTFE, and HPMC (Hydroxy propyl methyl cellulose) into an alkaline solution, mixing uniformly, and then coating on the current collector, drying and carrying out roller hot-pressing, thereby obtaining a negative electrode plate; (3) assembling: overlapping a positive electrode, a diaphragm and a negative electrode or overlapping a positive electrode, a diaphragm, a negative electrode, a diaphragm, a positive electrode, a diaphragm and a negative electrode circularly, and assembling into a battery shell so as to obtain a one-element or multi-element battery. The zinc metal-air battery provided by the invention has the characteristics of a metal-air battery and an alkaline zinc-manganese battery, not only is suitable for low-current long-time discharge, but also is suitable for high-current short-time discharge, and can be used for multiple times.

Description

Technical field [0001] The invention relates to a battery, in particular to a method for preparing a zinc metal air battery. Background technique [0002] Metal-air battery uses the reaction of metal and oxygen to generate electricity. It is clean and environmentally friendly, safe to use, and has a long storage period. It does not require other reaction media. It only needs air and water. It is widely used for emergency, indication, signal, backup power supply, etc. Fields, such as field rescue, lighting, emergency charging power supply, navigation mark, field signal light, etc. [0003] Because of its higher potential than other metals such as magnesium and aluminum, zinc has better stability, and zinc is inexpensive, non-toxic and easy to recycle. Zinc-metal-air batteries have rechargeable performance, a wider range of use, and can be stored in a dry state. Before use, you only need to charge and discharge the battery diaphragm to absorb water and place it in an air atmosphere ...

Claims

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Application Information

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IPC IPC(8): H01M12/06H01M2/10H01M2/16H01M4/64H01M4/04H01M50/20H01M50/44H01M50/491
CPCH01M4/06H01M4/12H01M4/8652H01M12/06H01M50/131H01M50/116H01M50/431H01M50/44Y02E60/10
Inventor 刘力玮涂国营张守祥文一波吴传勇陈宏林李洁
Owner HUNAN SOUNDDON NEW ENERGY
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