The next great step forward in human civilisation will be the next generation of batteries, which have hardly progressed since the 1940s.
And the leading edge of battery research is in fuel cells. The proton exchange membrane fuel cell (PEMFC) is one of the most promising fuel cell technologies. This is the type of fuel cell that will end up powering cars, buses and maybe even your house. Here’s how they will work:
Go to http://science.howstuffworks.com/fuel-cell2.htm
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