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Batteries

Batteries. The first battery. Research that lead to the development of the battery was AN ACCIDENT! 1780’s Luigi Galvani Studying a frog. Brass hook to hold the leg in place Other end of hook touched an iron railing The leg twitched! “Animal Electricity”. The first battery.

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Batteries

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  1. Batteries

  2. The first battery • Research that lead to the development of the battery was AN ACCIDENT! • 1780’s • Luigi Galvani • Studying a frog. • Brass hook to hold the leg in place • Other end of hook touched an iron railing • The leg twitched! • “Animal Electricity”

  3. The first battery • Alessandro Volta • Argued the electrical effect was from a chemical reaction! • Chemical Reaction • A process which substances change into new substances with different properties. • Layered Zinc, Paper soaked in saltwater, and silver. • Chemical energy • Energy stored in chemical compounds

  4. Electrochemical cells • Electrochemical cell • A device that transforms chemical energy into electrical energy • Consists of… • Two different metal electrodes • Emersed in a substance called an electrolyte (It conducts the current)

  5. Wet cell • Wet cell • Electrochemical cell where the electrolyte is a liquid

  6. Dry cell • Dry cell • Electrochemical cell where the electrolyte is a paste

  7. Review • Luigi Galvani stumbled across the concept that lead to the battery when he… • Was discussing Animal Electricity with some fellow scientists. • Was dissecting a frog. • Scooting across the carpet in wool socks. • None of the above.

  8. Review • Alessandro Volta built the first battery by… • Tying a piece of metal to a flying kite during a thunderstorm. • Placing a crank on a machine that turns a magnet creating a circuit. • Layering zinc, paper soaked with salt water, and silver. • None of the above.

  9. Review • A wet cell is… • An electrochemical device that uses a liquid for the electrode. • An electrochemical device that uses a paste for the electrode. • An electrochemical device that uses a liquid for the electrolyte. • An electrochemical device that uses a paste for the electrolyte.

  10. Review • A dry cell is… • An electrochemical device that uses a liquid for the electrode. • An electrochemical device that uses a paste for the electrode. • An electrochemical device that uses a liquid for the electrolyte. • An electrochemical device that uses a paste for the electrolyte.

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