How to build a powerful single celled battery

  1. Hey guys, I'm new to this forum and I've been meaning to start a project of my own. I want to create a homemade battery that gives me the highest voltage and current I can have using only two-three metals and an electrolytic solution. It can only be easily accessed metals, as I live in a city and my biggest provider for materials and such is "Home Depot." Is sulfuric acid the best solution to use for this? Is it best to just go with a lemon battery instead? Thank You, I appreciate any help!
     
  2. jcsd
  3. Try aluminum-air batteries:
    http://www.exo.net/~pauld/activities/AlAirBattery/alairbattery.html
    http://www.sustainlane.com/reviews/...-from-a-soda-can/MD2QLHMIKYY78J73MY3DLABDNAQI
     
  4. How would that stand compared to a citric acid battery?
     
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