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Batteries
 

Batteries

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    Batteries Batteries Presentation Transcript

    • BatteriesScott Brons
    •  Batteries are found everywhere! Found incell phones, computers, cars, ect. They have many sizes, shapes, andfunctions. Each have a specific purposealong with pros and cons.QuickTime™ and adecompressorare needed to see this picture.QuickTime™ and adecompressorare needed to see this picture.QuickTime™ and adecompressorare needed to see this picture.
    • How It Works What happens in a battery is this: Electrons go from the positive anode to thenegative anode creating a circuit. On their way, they can pass through a wireto a light bulb (in this example). The electrons pass through giving the bulbelectricity.QuickTime™ and adecompressorare needed to see this picture.
    • Dry-cellThese batteries are the most commonand probably the simplest. We findthem in appliances, remotes, and othersmall items.These batteries are what completestheir circuit and begin the flow ofelectrons.
    • Car BatteriesQuickTime™ and adecompressorare needed to see this picture.QuickTime™ and adecompressorare needed to see this picture. These batteries are abit more complex. They actually consist of6 batteries. Each generating about2 volts. PbO2 + 4H+ + SO4-- + 2e->PbSO4 + 2H2O Pb + SO4-- -> PbSO4 + 2e- Those are redoxreactions!!
    • Lithium-Ion Batteries Found in laptops or phones. The anode in this type is carbon, which isnot unusual. What defines this type is the cathode: it ismade of lithium cobalt oxide. They are made of this because lithium canhold lots of energy in atomic bonds. Pros: lightweight and efficient. Cons: very sensitive to extremetemperatures, more expensive, and if failingthey combust.
    • Implications. Why should we care?Batteries are everywhere. Wherecan we find them?The other option is either gasor electricity.Surrounded by these inventionsthey directly impact oureveryday lives.
    • Works Cited“How do batteries work?" How do batteries work? Ed. QualitativeReasoning Group. Northwestern University, n.d. Web. 11 Apr.2013.<http://www.qrg.northwestern.edu/projects/vss/docs/power/2-how-do-batteries-work.html>.Holzman, David. "Electric Cars." Chem Matters Apr. 1993: 4-7.Print.Adam. "Q & A: Car Batteries." Q & A: Car Batteries. The Board ofTrustees at theUniversity of Illinois : Department of Physics, 22 Oct. 2007. Web.28 Apr. 2013. <http://van.physics.illinois.edu/qa/listing.php?id=567>.Brain, Marshall. "How Lithium-ion Batteries Work" 14 November2006. HowStuffWorks.com.<http://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery.htm> 28 April 2013.