Making Solar Cells With No Soldering Points Usable
Intro: Making Solar Cells With No Soldering Points Usable
How to make solar cells, By taking junk Solar Cells, that have no soldering,tabs / points, and make them usable for DIY solar panels or science projects.
What is nice about this is you can get solar cells like this at a much cheaper price, so this would bring the project cost down.
In the next steps I will show step by step how I did this and how they work. I have made a video of this and I am really happy with the results of the experiment . I will be making a cheap DIY solar panel with this and I will post it when i am finished.
Free DIY Solar Panel E-Book
Check out my Video on this at
http://www.youtube.com/user/SOLARCELLS101?feature=mhum#p/a/u/0/YSv6hVhweeA
my website www.solarcells101.com
STEP 1: Adding Wire to a Solar Cell With No Soldering Points Pos Side
I am showing the top of the solar cell this is the neg side and it has no spot to solder to, Normaly this would be junk. I got some clear transparent tape from wallmart it looks off brand its just called TRANSPARENT Tape get the clear stuff!! Use thin wire, the best is flat tabbing wire and tape it down as flat as you can and try to hit all the collector grids. If you can run two strips across the top or negative - side, and two strips across the bottom or positive + side. This will work much nicer just incase you miss a collector or it was not down flat the other will hit it. You need to get as many amps as you can to make this worth it. In this step this is how the negative - side is done. In the next step I will show how I did the positive + side of the solar cell.
www.solarcells101.com
STEP 2: Adding Tabbing Wire to the Junk Solar Cells
This is pretty simple an very easy to do. I will show video and some heat test too. This tape with a heat light was able to withstand temps of 190 degrees F and the tape did not melt. I did this for 1 hour and the solar cell tested great !!
My website www.solarcells101.com
STEP 3: Testing the Solar Cell for Amps and Volts
This process with tape you can do fast and just as fast as soldering, without the cost.
So far I have tried five solar cells like this and they all performed very well. I am very excited about this because solar cells like this are very cheap, and therefore, you could make your own DIY solar panel very affordable. This also would make countries with limited resources able to make solar panels with alot less money. This process works great and I have ran many tests with heat and the tape is holding up as well.
My website, Free diy solar panel info www.solarcells101.com
STEP 4: Heat Test With the Tape on the Junk Solar Cell
On this page I ran a heat test for one hour at a temp of 185 degrees F to 191 degrees F and the solar cell and tape held up great.
After the test I checked the volts and amps they were at specs I am very happy with this so far. Another good thing about using the tape is that it makes the solar cell stronger with the tape going across, and if it does crack the tape holds it together and still puts out the same power.
David Eberly
at www.solarcells101.com
STEP 5: VIDEO OF HOW TO MAKE JUNK SOLAR CELLS USABLE AGAIN
Make solar cell ,On this page if you would like to see the video please click the link below
http://www.youtube.com/watch?v=YSv6hVhweeA
I hope some of this helps
David www.solarcells101.com
13 Comments
deopal.patil 6 years ago
hi,
actually there is a very good solder containing mostly pure tin and other elements with a special flux which overcomes the problems of surface oxidation.
This solder with special flux in it will wet the surface of solar cell back and will enable easy soldering anywhere on the back side of solar cell.No tapes, no adhesive, forms strong joints ,no contact resistance and no voltage drop.see the video in which we have shown large area on reverse of solar cell being easily made solderable
zardiw1 7 years ago
I would think you would have a problem connecting these in series to get any usable voltage (i.e. making a panel). The weakest one would fry making the panel useless....z
EndhouserPatrick 8 years ago
You can use inplix instructions to build it yourself guys.
peregrin5 8 years ago
mbecks 10 years ago
I have a panel that used to be a solar battery charger. I broke the cable off while experimenting and now i'm left with a solar panel with a dark side and a light side. I would like to still use it for the project I was doing before. The dark side has a layer of glass over it and the light side is gray with lines going across the whole length. will your instructable still work?
Hurdy Gurdy Man 11 years ago
thanks.
frollard 11 years ago
they tested voltage with no load attached. Current output is very very very small on small panels.
famousguy 12 years ago
agritzmacher 11 years ago
Solar cells produce current in proportion to the amount of light they receive. The amount they can capture is proportional to the area of the cell surface. So, by cutting a cell in half, the amount of electrical current it will produce is reduced by half.
The amount of voltage a cell produces is fairly constant while illuminated at about a half a volt. Therefore by wiring cells in series, you can produce electric current at a voltage level determined by the number of cells. 10 cells makes 5 volts, 36 cells makes 18 volts, etc.
Although the voltages add up, the current is constant in the series circuit. If you understand your physics or electronics, you'll see that the amount of current a solar panel produces is determined by the whole series of cells. It is therefore important that the cells be of about the same size. Your current will be limited by the lowest current produced by any cell, so the smallest cell is the weakest link. Chose broken cells and match them by size for best results.
My concern with using tape to make the connection to the cells would be the longevity of the contact. Will it degrade over time through corrosion, either through oxidation or by chemicals in the adhesive on the tape? I guess the only way to find out is time. I'd be curious to hear how these hold up.
I would - personally - never buy broken cells to do this with, but would certainly try it to play around with the cast-offs from a DIY solar panel project. As anyone who has worked with these cells knows, there is always some breakage and you always order extra because of that.
splatman 11 years ago
zazenergy 13 years ago
johnhearty 12 years ago
dlowther 12 years ago