The following link is to a BBC News Online article about how certain microbes can consume almost anything, and their “waste” output is electricity. Of course, if there will ever be a battery made using this technology, it is not going to happen within the next 5 years. Still, it’s something to think about.
A 13 year old inventor in Nevada has demonstrated on local TV an invention of his, inspired by the genius of Nikola Tesla and Albert Einstein, which produces DC electric current literally out of thin air. Oh, and the parts to make it only cost him $15 USD.