Make a Zinc Air Battery

In this video we show how to make a Zinc Air Battery.

First you'll need to make a solution of 50g of sodium hydroxide in 150mL of water. Stir it until it completely dissolves. Be careful as it will heat up a lot. Set it aside to cool.

Now get a zinc sheet (we cut one out of a carbon zinc battery in a previous video: http://www.youtube.com/watch?v=knc1lSupAwQ) and attach a wire to it and attach another wire to some steel wool. We then wrap the steel wool with a paper towel to serve as a separator. The zinc is then wrapped around the paper towel/steel wool and the whole assembly is placed into a container. The steel wool has to be exposed to air to allow the oxygen to get in. The electrolyte of sodium hydroxide is added and the battery is ready.
<p>Hi</p><p>Can you please tell me what function the steel wool serves? Would appreciate an early response, as I have a project due really soon</p><p>Thanks!</p>
I want to learn about the anode; why steel works works to &quot;get oxygen out of the air&quot; and into the chemical reaction. I will read books to learn this if it's hard to explain but can refer me to a book. Thanks.
aluminium-zinc = 17 Volt work? with or without sodium hydroxide?<br>video too fast.<br>For understandable video of copper zinc battery:<br>http://www.incroyables-experiences.fr/video-59-Fabriquer-une-batterie-cuivre-zinc-performante.html (in French)<br>The result is of ~ 1 volt, 0.6 A battery<br>with 4 boxes plastic = &gt; 4volts and 2.4 has enough for some speakers or the leds for a long time
Does the amount of oxygen affect power output? For instance would this battery perform better at sea level where the oxygen is denser versus 10,000' above sea level?<br><br>Thanks!
I love this idea, however. Can you please tell me what you would use such a battery for ? And how long it would last?
good current output on this battery , If you use a stainless steel electrode from an alkaline battery instead of zinc . you get an edison battery that puts out about 2 volts and can be recharged many times in fact Thomas Edison powered an electric car using this battery. You could call it an iron/air battery since iron instead of zinc is oxidized. When recharging sodium reduces the iron oxide to iron. <br>
WOW! this is awesome. I will try it to do something real work. It is cheap &amp; fast. too!
Please, add captions! Youtube says &quot;Captions are not available&quot;. <br><br>I could understand your writed explanation, but I have some doubts: <br><br>1) Is the output around 0.6 Volts? <br>2) How many Amps can you get whit this array?<br>3) What means the aluminum into the sodium hydroxide solution at the end of the video?
i just put up captions. <br><br>Sorry about that, captions take time for me to make since i have to write and time everything manually.
Thanks, NurdRage. I know you do not spare the time, so I very much appreciate your kindness.

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Bio: NurdRage is a dedicate group of science nerds trying to further amateur science with direct how-to instructions in video format. We saw what was already ... More »
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