12/10/2018: Soldering

Recap notes from last week

  • Contact more people:

  • Follow up on already sent emails (shows interest and persistence)

  • E.F.-- Speedway *reach out -preliminary dates Jan. 7th (before end of break?)

  • NJ conference

  • Livestream race in the presentation?

  • Flying drone

  • Maybe link it to the website too?

Logo presentation:

Add sun(s)

Website and Emails

Assembly/ Presentation post-Christmas break…

Solar Cells:

How to solder solar cells together: research

Learn Tab → Soldering Solar Cells (link to video on website as well?):  https://www.instructables.com/id/How-to-Solder-Solar-Cells-Together/?scrlybrkr=e62c8e69


STEPS:

  • Flux pen-- to remove the excess oxidation

  • Add tabs to the back of the solar cells

  • Solder

  • Monocrystalline: more effective

  • Because of lower silicon purity, polycrystalline solar panels are not quite as efficient as monocrystalline solar panels. Lower space-efficiency. You generally need to cover a larger surface to output the same electrical power as you would with a solar panel made of monocrystalline silicon.

  • Polycrystalline: Polycrystalline solar panels are also referred to as “multi-crystalline,” or many-crystal silicon. Because there are many crystals in each cell, there is to less freedom for the electrons to move. As a result, polycrystalline solar panels have lower efficiency ratings than monocrystalline panels.

https://www.energysage.com/solar/101/monocrystalline-vs-polycrystalline-solar-panels/

http://energyinformative.org/best-solar-panel-monocrystalline-polycrystalline-thin-film/


Youtube Video:

https://www.youtube.com/watch?v=ybvP8vjv1UY&scrlybrkr

http://www.altenergy.org/renewables/solar/common-types-of-solar-cells.html

https://www.solarreviews.com/blog/pros-and-cons-of-monocrystalline-vs-polycrystalline-solar-panels


Reflection on Soldering

  • Pressure (very light-- don’t push just apply pressure as you go down the line)

  • Temperature (go to 5)

  • Keep it aligned ( another soldering pen/ pliers )

  • Use another soldering iron (that is not plugged in to keep it smooth)

  • Blue cap flux pen worked better


Next Steps:

Does the bleeding of the flux pen affect the voltage of the panels?

Try and connect them?  (thecracked ones- practice…)

Try soldering on the other side

TEST ON WEDNESDAY!!!!!!!!