Time Magazine’s 2011 list of the year’s “50 Best Inventions” included one that could someday have a huge impact on EV technology. Berkeley, California-based PolyPlus holds a number of patents for advanced types of lithium-based batteries, including one called a lithium-water battery that captured Time’s imagination...Newswire > (http://www.chargedevs.com/content/news-wire/post/time-magazine-names-polyplus-lithium-battery-one-2011%E2%80%99s-50-best-inventions)

time to charge, battery life, and cost... crucial factors not mentioned.