http://electronics.howstuffworks.com/everyday-tech/battery3.htm
http://www.batteryfacts.co.uk/BatteryHistory/Volta.html
http://micro.magnet.fsu.edu/electromag/electricity/batteries/leadacid.html
http://www.technologyreview.com/news/406928/making-electric-vehicles-practical/
http://www.britannica.com/EBchecked/topic/183010/electrochemical-reaction
The Electric Car: Development and Future of Battery, Hybrid and Fuel-call Cars by M.H. Westbrook
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