Seidio Palm Pre battery adds more staying power, retains slim figure
[Via jkOnTheRun]
battery posts

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.

HP just recalled a hefty 70,000 laptop batteries earlier this month, but it looks like it still has a few more fires to put out, and it's now recalled another 15,000 batteries sold in China. No reports of any actual "flames / fire" this time around but, as with countless other recalls, the batteries are apparently prone to overheating, and can indeed pose a pesky fire hazard. Word of specific models affected is also a bit hard to come by at the moment, but the batteries were apparently used in laptops manufactured between late 2007 and early 2008, and include models sold under both the HP Pavilion and Compaq Presario brands. If that sounds like your laptop, you can get in touch with HP China for a free replacement battery.









