Did Researchers Create Lifetime Batteries?
May 4, 2016 by admin
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Researchers at the University of California at Irvine (UCI) have accidentally – yes, accidentally – discovered a nanowire-based technology that could lead to batteries that can be charged hundreds of thousands of times.
Mya Le Thai, a PhD candidate at the university, explained in a paper published this week that she and her colleagues used nanowires, a material that is several thousand times thinner than a human hair, extremely conductive and has a surface area large enough to support the storage and transfer of electrons.
Nanowires are extremely fragile and don’t usually hold up well to repeated discharging and recharging, or cycling. They expand and grow brittle in a typical lithium-ion battery, but Le Thai’s team fixed this by coating a gold nanowire in a manganese dioxide shell and then placing it in a Plexiglas-like gel to improve its reliability. All by accident.
The breakthrough could lead to laptop, smartphone and tablet batteries that last forever.
Reginald Penner, chairman of UCI’s chemistry department, said: “Mya was playing around and she coated this whole thing with a very thin gel layer and started to cycle it.
“She discovered that just by using this gel she could cycle it hundreds of thousands of times without losing any capacity. That was crazy, because these things typically die in dramatic fashion after 5,000 or 6,000 or 7,000 cycles at most.”
The battery-like structure was tested more than 200,000 times over a three-month span, and the researchers reported no loss of capacity or power.
“The coated electrode holds its shape much better, making it a more reliable option,” Thai said. “This research proves that a nanowire-based battery electrode can have a long lifetime and that we can make these kinds of batteries a reality.”
The breakthrough also paves the way for commercial batteries that could last a lifetime in appliances, cars and spacecraft.
British fuel-cell maker Intelligent Energy Holdings announced earlier this year that it is working on a smartphone battery that will need to be charged only once a week.
Did Researchers Create Batteries That A Lifetime? : :: TheGuruReview.net ::
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Is AT&T Facing Pressure?
February 1, 2016 by admin
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AT&T has announced aggressive discounts on new smartphones and devices, including a 2-for-1 smartphone offer for business customers.
A big focus of the AT&T discounts is special deals on Samsung’s Galaxy smartphones and Gear S2 smartwatches. Analysts interpreted that focus on Samsung devices as a way to clear out inventory prior to expected upgrade announcements coming in late February at Mobile World Congress in Barcelona.
AT&T is also facing pressure to add more subscribers, as analysts — including Evercore ISI this week– have predicted AT&T’s fourth-quarter postpaid subscriber loss will be more than 300,000. That comes amid reports that T-Mobile added 4.5 million net subscribers for the fourth quarter and Verizon Wireless added 525,000.
All the major carriers, including AT&T, hit the December holidays with special device deals, but AT&T apparently didn’t feel enough impact on its inventory from those offers, analysts said.
AT&T and Samsung are motivated to get rid of all the old inventory before new models arrive, said Patrick Moorhead, an analyst at Moor Insights & Strategy. “Retailers won’t run such an aggressive promotion unless they have a lot of stock.”
An AT&T spokeswoman provided a different explanation: “Due to popular demand, AT&T is bringing back some of its holiday promos.”
Those promos — available to both consumers and business customers at AT&T retail stores — include a free Samsung Gear S2 smartwatch for a limited time to any customer buying a Samsung Galaxy smartphone, or a free Samsung Galaxy Tab 4 for buying a Galaxy smartphone on an AT&T Next wireless plan. AT&T is also offering an iPad mini 2 for $99 when a customer buys a new iPhone on the Next plan.
For business customers, the 2-for-1 smartphone deal is new. It allows business customers to buy a new smartphone and then get another smartphone, valued at up to $650, for free.
Source-http://www.thegurureview.net/mobile-category/att-facing-pressure-offers-aggressive-smartphone-discounts.html
Samsung Buys LoopPay
March 5, 2015 by admin
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Samsung Electronics Co Ltd has acquired U.S. mobile wallet startup LoopPay, signaling its intention to launch a smartphone payments service to compete with rival Apple Inc.
Mobile payments have been slow to catch on in the United States and elsewhere, despite strong backing. Apple, Google, and eBay Inc’s PayPal have all launched services to allow users to pay in stores via smartphones.
The weak uptake is partly because many retailers have been reluctant to adopt the hardware and software infrastructure required for these new mobile payment options to work. These services also fail to offer much more convenience than simply swiping a credit card, Samsung executives said on Wednesday.
LoopPay’s technology differs because it works off existing magnetic-stripe card readers at checkout, changing them into contactless receivers, they said. About 90 percent of checkout counters already support magnetic swiping.
“If you can’t solve the problem of merchant acceptance…, of being able to use the vast majority of your cards, then it can’t really be your wallet,” said David Eun, head of Samsung’s Global Innovation Center.
Injong Rhee, who is leading Samsung’s as-yet-unannounced payments project, said the Asian giant will soon reveal more details of its envisioned service. He would not be drawn on speculation the company may do so during the Mobile World Congress in Barcelona.
He said new phones such as the upcoming, latest Galaxy would support the service.
Apple Pay, launched in September, allows iPhone users to pay at the tap of a button. Executives have lauded its rapid rollout so far, including the fact that more than 2,000 banks now support it and the U.S. government will accept Apple Pay later this year.
But Apple Pay requires retailers to install near-field communication and some have been reluctant. In addition, many retailers such as Wal-Mart Stores Inc and CVS Health Corp, back their own system, CurrentC.
Samsung had invested in LoopPay, along with Visa Inc and Synchrony Financial, before its acquisition. Terms of the deal, which Samsung negotiated over several months, were not disclosed.
It’s unclear how else Samsung could differentiate its service versus Apple’s or other rivals.
What Will Facebook Do With WhatsApp?
October 21, 2014 by admin
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Facebook, which closed its acquisition of mobile messaging service WhatsApp earlier this week, has said that it has no near-term plan to make money from it.
Chief Executive Mark Zuckerberg, who is visiting India to participate in an event to boost Internet usage, refused to say much more, but it does indicate that the company has not worked out a cunning plan yet.
Facebook’s final WhatsApp acquisition price tag has risen an additional $3 billion to roughly $22 billion because of the increased value of Facebook’s stock in recent months. This means that Zuckerberg is under pressure to make a bob or two from the deal.
WhatsApp works across different types of phones, across borders, and without advertising. The app only charges a 99 cent annual subscription fee, which is waived for the first year.
Blackberry Loss Shrinks
October 8, 2014 by admin
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BlackBerry Ltd reported a smaller quarterly loss on Friday and is showing encouraging signals about its endangered smartphone business as well as its software and services sales, spurring a more than 4 percent jump in its shares.
The Canadian company, a smartphone pioneer pushed to the margins by Apple’s iPhone and devices running Google’s Android software, is now focusing more on software and services than on hardware as it works through a long turnaround.
On the services front, the company reported a huge number of conversions in its second quarter to its heavily promoted new device management platform. But BlackBerry’s hardware unit also offered hopeful news, posting an adjusted profit for the first time in five quarters, helped by lower manufacturing costs and strong demand for its low-end Z3 handsets in emerging markets.
“This is the first time in a long time that we have actually made money on hardware,” Chief Executive John Chen told reporters, while hinting at plans to unveil new phones at Mobile World Congress in Barcelona in 2015. “We think we can continue on that track, so hardware is no longer going to be a drag to the margin and the earnings.”
The Waterloo, Ontario-based company’s revenue in North America rose from the previous quarter, but sales slipped elsewhere. Its total revenue was down more than 40 percent from a year earlier.
“They’re taking all the right steps, which is great. It’s encouraging to see,” said BGC Partners analyst Colin Gillis. “Now we’ve got to see what Chen can do about the revenue decline.”
BlackBerry shares were up 5.2 percent at C$11.45 on the Toronto Stock Exchange and up 4.6 percent at $10.26 on Nasdaq.
HP Goes All-In On Tablets
Hewlett-Packard garnered attention at Mobile World Congress show with its new Slate 7-inch tablet and then the sale of webOS assets, but the company is looking to put past distractions behind and will release more tablets in the future, the company said.
“You can expect going forward [to release] a family of products,” said Shane Wall, chief technology officer at Hewlett-Packard’s mobility group, in an interview at MWC. The mobility trade show is being held in Barcelona from Feb. 25 to 28.
The 7-inch tablet attracted a small crowd at the HP booth, with people lining up to photograph or use the device. The company effectively took a dive into the low-cost tablet and tried to differentiate its tablet by a lower price, and also features like a micro-SD card slot for expandable storage and dual-cameras. Google’s $199 Nexus 7 is priced higher and has a quad-core processor, a higher-resolution screen and Android 4.2, but HP believes it will sell a lot of the tablets at the $169 price.
“We’re obviously late,” Wall said. “We wanted to start and see how aggressive we can be on the low end.”
The Slate 7 also signifies HP’s re-entry into the consumer tablet market after a disastrous stint with the webOS mobile operating system, which it got with the acquisition of Palm in 2010 for $1.2 billion. The first webOS tablet, the TouchPad, was launched in 2011, but later discontinued along with webOS smartphones. Since then HP has released enterprise tablets such as ElitePad 900 with Windows 8, and now the company has adopted Android for consumer tablets.
AT&T Gets GM
March 5, 2013 by admin
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AT&T Monday said it will provide LTE wireless services to most General Motors automobiles starting in 2014 in the U.S. and Canada.
A multi-year agreement between AT&T and GM subsidiary OnStar calls for vehicles to continue getting OnStar’s safety and security services while adding information and entertainment services for backseat drivers, AT&T said.
Millions of vehicles will be affected, as AT&T rolls out LTE to reach 300 million people in the U.S. by the end of 2014.
The AT&T-GM announcement is part of an explosion in the number of devices connected to the Internet, many of them wirelessly, in what some have termed the “Internet of Things.”
“The is a big announcement for connected devices,” Glenn Lurie, president of emerging enterprises and partnerships at AT&T, said in an interview at Mobile World Congress here.
Samsung Goes Eight Cores
It was only a matter of time before someone got the cunning idea to build an eight-core ARM chip and Samsung seems to have taken up the challenge.
The Korean giant will detail its first eight-core SoC at the International Solid State Circuits Conference in February. The 28nm part features two stitched quad-core clusters, based on A7 and A15 cores, hence the name – big.little.
The A7 cluster runs at up to 1.2GHz, while the A15 cluster can hit 1.8GHz, and it packs 2MB of L2 cache. It sounds like an intriguing concept, a bit like Nvidia’s companion core taken to the next level. The “little” cluster is tuned for energy efficiency, while the beefy A15 cluster should deliver unparalleled performance.
But what about real life applications? Eight cores sound like overkill for smartphones and even high end tablets, so it is unclear whether the big.little chip will find its way into actual products anytime soon.
Google Had Developed Own Currency
March 5, 2012 by admin
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Google once contemplated the idea of issuing its own currency, to be called Google Bucks, company Executive Chairman Eric Schmidt said on stage at the Mobile World Congress in Barcelona,Spain on Tuesday.
At the end of his keynote speech, Schmidt hit on a wide array of topics in response to audience questions. “We’ve had various proposals to have our own currency we were going to call Google Bucks,” Schmidt said.
The idea was to implement a “peer-to-peer money” system. However, Google discovered that the concept is illegal in most areas, he said. Governments are typically wary of the potential for money laundering with such proposals.
“Ultimately we decided we didn’t want to get into that because of these issues,” Schmidt said.
He also hinted that Google might be preparing for a battle in China once its acquisition of Motorola is complete.
“Google’s been willing to take on China pretty well,” he said in response to a question about whether Google expected to continue to ignore theft of Motorola intellectual property in China, as Motorola has been doing. The acquisition hasn’t closed yet, Schmidt noted. “We’ve taken a pretty strong position on IP. We are well aware of the issues and we are considering your question,” he said.
Google is still waiting for some government approvals of its proposed acquisition of Motorola.
Nokia To Unveil Cheaper Windows Phone
February 27, 2012 by admin
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Nokia debuted a new, cheaper and more budget-friendly smartphone using Microsoft’s Windows Phone software, targeting a wider market for its new range of smartphones.
Cheaper phones are the key for Nokia and Microsoft in their battle to win a larger share of the market, analysts say.
In addition to the new Lumia 610 Nokia will also unveil at the Mobile World Congress trade show in Barcelona a global version of its high-end Lumia 900 phone, which AT&T is scheduled to roll out in the United States, the sources said.
Nokia is set to unveil the phones at a news conference next Monday, on February 27.
Nokia last year dumped its own smartphone software platforms in favor of Microsoft’s Windows Phone, which has so far had a limited impact due to the high prices of phones using it.