Go on and file this one away in the folder of "awesome things that could, but won't ever happen." As the brilliant minds around the world figure out how to solve vicious diseases, move motorcars with peanut oil and send engineers to fix a telescope in outer space, we still can't buy a pack of AA cells that last longer than a month or two in our favorite toy. Some call it a
limit of physics, some deem it a conspiracy. Whatever the case, we've no doubt whatsoever that a new silicon-containing carbon material -- designed by Dow Corning Toray to double the
capacity of existing
Li-ion batteries -- won't ever have a real impact in our lives. Of course, it's not like any consumer would actually benefit from having a netbook battery good for 16 hours, nor would wedding photographers enjoy being able to shoot 1,000 indoor shots without cracking the battery door open on their SB-600. No -- that's just
absurd. C'mon Dow, prove us wrong here.
We've already seen some zinc-air batteries hit the market, and now it sounds like lithium-based cells will be the next type to use air as a cathode. The only problem? Those of you who were awake in 10th grade chemistry might remember that exposing lithium metal to water causes it to explode -- which is why a company called PolyPlus has partnered with the government to develop a unique waterproof lithium metal-air battery that keeps the boom-boom in but lets the buzzy-buzz out. The coating allows lithium ions to seep out while preventing water from getting in, and because the membrane protects the cell, the battery won't discharge in storage. If that sounds a little pie-in-the-sky, well, it is -- PolyPlus founder Steven Visco called lithium metal "the holy-grail battery material." Us, we're a little more skeptical, but we're loving the sounds of prototypes that deliver the juice of current laptop batteries at one-fifth the weight -- hook us up, boys.
