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Samsung's 'graphene ball' battery could lead to fast-charging EVs
When it comes to lithium-ion batteries, you can have fast charging speeds or high capacities -- take your pick. Now, Samsung researchers, working with Seoul National University, have figured out how to give batteries both qualities thanks to our old friend, graphene. By coating the electrodes with a thin, popcorn-shaped layer known as a "graphene ball," they were able to produce a battery that could fully charge in just 12 minutes with up to 45 percent more capacity. The research, if it pans out, could lead to lighter and faster-charging electric vehicles.
Samsung breakthrough could turn your window pane into a big ol' LED
Samsung's quest for transparency won't end with laptops, apparently. Today, the Samsung Advanced Institute of Technology announced that its engineers have successfully created "single crystalline Gallium Nitride on amorphous glass substrates" -- an achievement that would allow the manufacturer to produce jumbo-sized LEDs from normal glass, including window panes. Samsung says this scaled-up approach will allow them to lower production costs relative to most LED manufacturers, which rely on sapphire, rather than glass substrates. And, whereas most Gallium Nitride (GaN) LEDs on the market measure just two inches in size, Sammy's technique could result in displays about 400 times larger. "In ten years, window panes will double as lighting and display screens, giving personality to buildings," a Samsung spokesperson told the Korea Herald. Unfortunately, however, it will likely be another ten years before the technology is ready to hit the market. Until then, we'll just have to do our late night window coding the old fashioned way. [Image courtesy of Columbia Pictures / The New York Times]
SAIT and Samsung team for smallest fuel cell charger
There's a big difference between "smallest" and "small enough," but SAIT and Samsung SDI might've just crossed the gap with their new joint-developed fuel cell mobile charger. The device, which the companies claim is the world's smallest fuel cell charger yet, can pump 2W of juice, and supposedly charges mobile devices in 1/5 the time of competing offerings. At 5.3 ounces, and measuring a mere 5mm thick, it shouldn't be much of a problem at all to slip this into your bag, letting you extend the life of your PDA, phone, camera or PMP. In tests the charger has completed 200 continuous charges, and is nearly ready for market -- with over 120 patents involved in making this thing tick. The unit is based on small user-replaceable methanol cartridges, providing "limitless" power if you're willing to spring for enough fuel cartridges. There's no exact word on when these things will hit retail shelves, but Samsung expects chargers like this, along with fuel cell-based laptop batteries to be commonplace in 2-3 years. [Thanks, Mike]
