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Tiny, printable batteries promise to change the face of obnoxious greeting cards forever


Researchers at the Fraunhofer Research Institution for Electronic Nano Systems ENAS in Chemnitz led by Prof. Dr. Reinhard Baumann have unveiled tiny, printable batteries that they hope to put into production for pennies apiece. The new battery prototype is primarily composed of a zinc anode and a manganese cathode that can be screen printed and covered with a non-printed template cover. Each mercury-free battery weighs less than one gram, and can individually produce about 1.5 volts of electricity. By placing several batteries side by side, however, up to 6 volts can be generated. The institute has already produced these little power houses in the lab, and hopes to see them into production by the end of the year. The batteries have a relatively short lifespan, making them suitable for applications such as powering greeting cards. All we can say is that this battery would have made the card we got two years ago that sang "Word Up" much, much awesomer.

[Via Physorg]

Waterproof lithium metal-air batteries could revolutionize portable power

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.

More scientific black magic promises to double Li-ion battery capacity


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.

HP recalls another 15,000 laptop batteries, this time in China

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.

MIT's quick charging batteries could revolutionize the world, maybe


Okay, so maybe the headline is a tad on the sensational side, but seriously, this has sensational written all over it. A team of brilliant MIT engineers have conjured up a beltway of sorts that allows for "rapid transit of electrical energy through a well-known battery material," something that could usher in smaller and lighter cells that could recharge in moments versus hours. There's even talk that this technology could be adapted for use in automobiles, and honestly, it doesn't take an electrical engineer to understand how rapid charge / discharge batteries could "induce lifestyle changes." Hey, laptop battery makers -- could you guys look into getting these ready to go in machines by CES 2010? That'd be swell, thanks.

[Via BBC, thanks Simon]

Wrist Band Portable Battery charges your phone, electrifies your look


There are plenty of terrible portable chargers out there, but the "Wrist Band Portable Battery" sure isn't one of them. The name pretty much tells the whole tale -- it's a wrist band packed with a lithium-ion battery (that supposedly gets about five hours of juicing time) for charging numberless portable devices. It comes with 7 different adapters, and the totally awesomely-styled band itself has a set of LEDs which indicate the battery life remaining. It'll cost you about $25 to get one of your own and prove once and for all that no, punk is not dead. Check out a few more pics after the break.

Nokia admits some N73 batteries have put on a little weight

Nokia's fessed up to the fact that "a limited number" BP-6M batteries used in the N73 have, over time, swollen up -- apparently in some cases to about three-times their original size. The worst of these cases have resulted in handsets with a battery cover that won't close at the back -- rendering the phone totally not cool. It's a fairly common lithium-ion battery occurence after a few years, but don't worry -- it's not dangerous, just annoying. Look at this way: at least the batteries aren't exploding.

Energizer's Rechargeable Solar Charger gets detailed, pictured


You don't usually equate CES with big time Energizer introductions, but this year is going to be different. While our fingers are still crossed that a 50-foot drum-toting bunny is seen storming around in the Vegas heat, we do know that said outfit will be bringing along its minty fresh Zinc Air Prismatic batteries, not to mention the newly unveiled Rechargeable Solar Charger. The above pictured device will boast a USB port to power an assortment of devices, and it can also be charged from an AC outlet if you just can't seem to locate the sun. Better still, its weatherproof nature should make it suitable for argonauts, and it'll only run $49.99 with a pair of rechargeable cells when it lands next summer.

Some Dell Mini 9s said to be shipping with smaller batteries


It's not clear exactly how widespread the problem is, but it looks like at least some Dell Mini 9s are shipping with smaller batteries than they should be -- a situation that, you may remember, also plagued some Eee PCs a little ways back. According to jkkmobile, while the all the batteries are labeled a 32Wh, 4 cell batteries, a quick software test of their own Mini 9 revealed that the battery was in fact only 24Wh, which certainly cuts into the promised four-hour runtime a bit. Apparently, the folks on the MyDellMini forums were able to surmise that batteries with labels beginning in "CN" are the proper 32Wh models, while those that begin with "KR" are the smaller ones. Of course, there's no way to check that until you actually get one in your hands, so we're hoping Dell steps in to clear things up a bit.

[Via jkkmobile]

Update: It looks like MyDellMini forum member that initially reported this issue has since run a few more tests and discovered that the two batteries aren't as different as it seems at first, and likely not different enough to worry about. That's further backed up by some rundown tests, which actually showed the supposedly smaller KR battery lasting a bit longer than the CN one.

Energizer to debut new, longer-lived Zinc Air Prismatic battery at CES 2009

Energizer's set to unleash a new battery -- dubbed the Zinc Air Prismatic -- at CES in January, which they say will offer three times the juice of similar alkaline and lithium-ion batteries. Promising more runtime for smaller devices, they'll also supposedly be the same size as current, comparable batteries. It's a little vague right now, and we don't have any specifics on life times for specific examples of devices, but it all sure sounds great. We take exciting claims of battery power with a grain of salt, especially from the companies that make them, so we'll just have to wait and see. Then again, we're inclined to take companies with mascots that look like they've marched out of a hallucinogenic nightmare at their word. Conundrum.

Korean geniuses invent lithium batteries with eight times the juice

Oh, what wondrous things come from the land of Korea -- dancing emotional robot humanoids, oxygen-emitting robot plants, and multiple 24-hour StarCraft channels. It's all good, and we dig robotics and televised gaming, but this latest invention could be our favorite if it pans out. Professor Cho Jae-Phil and his team at Hanyang University have replaced the graphite in lithium batteries with a certain kind of silicon, which we're told can store eight times the power. No word on what the batteries have actually been used for yet, but it stands to reason they could eventually make it to consumer electronics. Now you see why we're willing to say this might be better than 24-hour StarCraft. Say it with us: 48-hour StarCraft.

Recalled: 35,000 volatile Sony batteries in Dell / HP / Toshiba laptops

Ruh roh. We're really, really hoping this isn't just the first of another long string of laptop battery recalls, but the US Consumer Product Safety Commission, in cooperation with a slew of other outfits, has just announced a voluntary recall of around 35,000 Sony laptop batteries. As you'd expect, the Li-ions in question "can overheat, posing a fire and burn hazard to consumers," and there have already been 19 reports of overheating including 17 reports of flames / fire and two reports of consumers getting mildly burnt. For the full list (and it's pretty long) of affected laptop models from HP / HP Compaq, Toshiba and Dell, be sure to give the read link some serious attention. Oh, and stop using that battery pronto if yours is one of the afflicted.

MIT working up microbatteries to power implantable medical sensors


In the never-ending quest to make even the smallest devices on Earth a touch smaller, a talented team of MIT engineers have developed a method for creating and installing microbatteries, which could eventually power a plethora of diminutive devices including "labs-on-a-chip and implantable medical sensors." It's bruited that this is the first time in which "microcontact printing has been used to fabricate and position microbattery electrodes and the first use of virus-based assembly in such a process," and while you'd likely have to be a colleague to even digest that, the take away is that these gurus are one step closer to generating battery-powered Scrubbing Bubbles. And your shower could use 'em.

[Via PCMag]

Oncore Power wants to charge every MacBook battery all of the time


If you find yourself burning through your MacBook or iBook batteries at an alarming rate, perhaps you require a charging solution that's, shall we say... more robust. That's where Oncore Power's psychotic 6-bay charging station comes into play. Never again will you have to suffer the indignation of a powerless laptop with the company's all-in-one solution to charge every brick in your arsenal at once. The device will juice up three batteries at once, letting you stagger the two bays of three slots so you're always one stylish wrist snap away from sweet, sweet power. Sure, it costs $395 (and presumably more for the version with included batteries), but you can't put a price on peace of mind, can you? Oh, wait. You can. It's $395.

[Via Macworld]

Microwave process could cut cost of lithium-ion batteries


While there's plenty of folks out there focused on making lithium-ion batteries safer and longer-lasting, there's also thankfully some dedicated to making 'em cheaper, which is especially welcome when we're talking about the expensive batteries powering cars. Among those in the latter camp is University of Texas at Austin professor Arumugam Manthiram, who has devised a method of using microwaves to heat a concoction of commercially available chemicals, which ultimately results in the Rorschach test of rod-shaped particles of lithium iron phosphate pictured above. While the use of lithium iron phosphate instead of the more commonly used lithium cobalt oxide apparently cuts back on the total amount of energy the batteries can store, it is apparently particularly well-suited to delivering large bursts of power, which should make the batteries ideal for use in hybrid vehicles. What's more, while the actual cost of the materials may not be much cheaper than other solutions, the sheer speed at which Manthiram's process works could allow for higher production rates from the same amount of equipment, which should result in cheaper batteries by the time they roll off the assembly line.

[Via Daily Tech]
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