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Magnalium alloy air cell and preparation method of catalyst layer thereof

A magnesium-aluminum alloy and air battery technology, which is applied to battery electrodes, fuel cell type half cells and primary cell type half cells, circuits, etc., can solve problems such as high price, achieve long duration, simple preparation method, Easy on and off effect

Active Publication Date: 2014-04-02
SOUNDON NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As a catalyst, although the catalytic performance of platinum is very good (such as the commonly used Pt / C electrode), the price is very expensive, as stated in the patent CN101567477A: looking for cheap and efficient redox catalysts and researching cathode preparation technologies with new structures are current research Hotspots

Method used

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  • Magnalium alloy air cell and preparation method of catalyst layer thereof
  • Magnalium alloy air cell and preparation method of catalyst layer thereof
  • Magnalium alloy air cell and preparation method of catalyst layer thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] 1. Weigh 3 grams of sodium dodecylbenzenesulfonate into a beaker, then add 120 grams of N-methylpyrrolidone, stir to dissolve it completely, and set aside;

[0031] 2. Weigh 3 grams of sodium carboxymethylcellulose into a beaker, then add 75 grams of water, stir to make it transparent and viscous, and set aside;

[0032] 3. Weigh 6 grams of styrene-butadiene rubber into a beaker, then add 6 grams of water, stir to make it a uniformly distributed colloid, and set aside;

[0033] 4. Add 9 grams of sodium sulfate and 21 grams of sodium citrate to a beaker containing 450 grams of water to dissolve them completely and become transparent;

[0034] 5. Add sodium dodecylbenzenesulfonate solution and sodium carboxymethylcellulose solution to the solution in step 4 to make them evenly distributed, then add 36 grams of conductive carbon black to it, stir for half an hour before adding 12 grams of graphite and 36 grams of active carbon, after stirring for half an hour, add 174 gra...

Embodiment 2

[0040] 1. Weigh 4 grams of Tween into a beaker, then add 50 grams of water, stir to dissolve it completely, and set aside;

[0041] 2. Weigh 2 grams of xanthan gum into a beaker, then add 75 grams of water, stir to make it transparent and viscous, and set aside;

[0042] 3. Weigh 8 grams of polytetrafluoroethylene into a beaker, then add 20 grams of water, stir to make it a uniformly distributed colloid, and set aside;

[0043] 4. Add 9 grams of sodium chloride, 20 grams of sodium citrate and 2 grams of ethylenediaminetetraacetic acid into a beaker containing 450 grams of water to dissolve them completely and become transparent;

[0044] 5. Add Tween solution and xanthan gum solution to the solution in the 4th step to make it evenly distributed, then add 30 grams of conductive carbon black to it, stir for half an hour and then add 14 grams of graphite and 32 grams of activated carbon. After stirring for half an hour, add 120 grams of manganese dioxide, add polytetrafluoroethy...

Embodiment 3

[0050]1. Weigh 2 grams of stearic acid into a beaker, then add 50 grams of water, stir to dissolve it completely, and set aside;

[0051] 2. Weigh 10 grams of sodium carboxymethylcellulose into a beaker, then add 75 grams of water, stir to make it transparent and viscous, and set aside;

[0052] 3. Weigh 6 grams of polyacrylic acid in a beaker, then add 14 grams of water, stir to make it a uniformly distributed colloid, and set aside;

[0053] 4. Add 1 gram of sodium sulfate, 12 grams of sodium citrate and 10 grams of citric acid to a beaker containing 450 grams of water to dissolve completely and become transparent;

[0054] 5. Add stearic acid solution and sodium carboxymethyl cellulose solution to the solution in step 4 to make it evenly distributed, then add 10 grams of carbon fiber to it, stir for half an hour, and then add 14 grams of graphite and activated carbon 40 grams, after stirring for half an hour, add 200 grams of manganese dioxide and 1 gram of metal platinum ...

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Abstract

The invention discloses a magnalium alloy air cell and a preparation method of a catalyst layer thereof. The preparation method of the catalyst layer comprises the following steps: adding adjuvants such as salt, a surfactant, a stabilizer, an adhesive, a chelating agent or a complexing agent into a catalyst and a carbon material; secondly, preparing the materials into paste; adjusting a pH (Potential of Hydrogen) value to be nearly neutral by using organic weak acid or base; coating the materials on a non-woven fabric; and drying to obtain a catalyst layer. The magnalium alloy air cell comprises the catalyst layer, a magnalium alloy, a water absorbing layer and a current collector, wherein the magnalium alloy, the water absorbing layer, the catalyst layer and the current collector are overlapped to form the magnalium alloy air cell unit; and the plurality of units are connected in series or parallel, so as to form a magnalium alloy air cell pack. The catalyst layer of the magnalium alloy air cell provided by the invention has good breathability; the water absorbing property of the catalyst surface is strong; the catalyzing effect is good; the convenience in use can be realized; the magnalium alloy air cell pack can be used by wetting with water when supplying power to the electric devices.

Description

technical field [0001] The invention relates to a metal-air battery, in particular to a magnesium-aluminum alloy air battery and a method for preparing a catalytic layer of the magnesium-aluminum alloy air battery. Background technique [0002] From the periodic table of elements, lithium and magnesium are in a diagonal relationship, and the properties between lithium and magnesium are very similar. Lithium batteries can be made into batteries with the highest energy density due to two reasons. One is the amount of lithium in all metals. The potential is the most negative; the second is that the lithium unit mass can release the largest charge. But there is one thing that limits the development of lithium, because the abundance of lithium in the upper crust is only 20ppm, which is expensive, while the abundance of magnesium in the upper crust is 1.32%, which is about 660 times the content of lithium. Inexhaustible and cheap. In addition, the standard electrode potential of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M12/06H01M6/32
CPCY02E60/50H01M4/8828H01M4/9075H01M12/06
Inventor 涂国营张守祥文一波丁文玉吴传勇商士波刘鹏
Owner SOUNDON NEW ENERGY TECH CO LTD
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