Exploding Samsung Phones Show Perils of Building Better Battery

Samsung Electronics Co.

, under pressure from consumers for longer-lasting batteries that charge faster, pushed the limits of lithium-ion technology. The effort backfired when some of its new Note 7 handsets caught fire and exploded.

Building a better battery has long bedeviled the tech industry. Smartphones are constantly improving, with sharper displays, improved software and cameras rivaling those used by the pros. Not so the batteries, which despite advances still die faster than consumers like and take too long to recharge.

"It's the race to add new capabilities and features to the phone that demands a more capable battery," said Martin Reynolds, a Gartner analyst.

On top of the demands placed on their performance, batteries are getting slimmer and smaller, as smartphone makers try to win over consumers with thinner devices. That's putting strain on the manufacturing process, and raising the risk of defects that can lead to the kind of malfunctions seen in Samsung's phones.

The Note 7 was supposed to stand out with its stylus, large edge-to-edge display and faster charging technology. Samsung rolled out the device in August, just before Apple Inc. unveiled a new batch of iPhones. It was a opportunity for the Suwon, South Korea-based company to outshine its biggest smartphone rival. Instead, it backfired.

Usually, smartphone makers and wireless providers rigorously test products before they reach customers, although the process is mainly focused on making sure the devices are compatible with wireless networks. Samsung provided carriers with the typical amount of testing time before the launch date, according to people familiar with the matter. Samsung first showed prototypes of the Note 7 to carriers in April and testing began in May, said the people, who asked not to be identified because the arrangements aren't public.

At least one major Samsung partner is reassessing its testing procedures to catch issues like this in the future, according to a person with knowledge of the matter. The South Korean manufacturer is holding multiple meetings each week with major carrier partners to discuss the latest details from its investigation and assist in mitigating the issue, the person said.

Headaches involving the production of lithium-ion batteries aren't unique to the smartphone industry. Overheating battery packs made by Sony Corp. led to the recall of millions of laptops made by Dell Inc., Toshiba Corp. and others in 2006, while Boeing Co.'s 787 Dreamliner suffered from electrical fires after the airplane's 2011 debut.

For an explanation of how batteries work, click here.

"Based on our investigation, we learned that there was an isolated issue with the battery cell," Samsung said in an e-mailed response to questions. "Overheating of the battery cell occurred when the anode-to-cathode came into contact with each other, causing a very rare manufacturing process error." Samsung is working to fix the problem. While only about three dozen cases were reported, the company is seeking to replace 2.5 million Note 7 phones, an endeavor that could cost as much as $2 billion . On Wednesday, Samsung placed advertisements in South Korea's major newspapers to apologize for the incident. In an effort to prevent any more device explosions, the company is also rolling out a software update on Sept. 20 that will limit the battery charge at 60 percent. Availability of that update outside South Korea will vary depending on each market, Samsung said.

The Note 7 features a larger battery than its predecessor, one that can store 3500 milliamp hours of electric power, compared with 3000 mAh for the Note 5 (Samsung skipped a number this year, to match its flagship Galaxy S7). By comparison, the iPhone 7 Plus, the Note 7's main competitor, has a 2900 mAh battery. While Apple has also sought to upgrade its battery technology to support better screens and faster graphics, it hasn't often promoted battery life as a feature itself. Last week's iPhone event was an exception, when the company highlighted that the iPhone 7 can last almost two hours longer than its predecessor thanks to better software and processor design.

Samsung SDI Co.

was the main battery supplier for the Note 7, according to a person with knowledge of the matter.The batteries failed becausea separator within the cells was too thin and electrodes weren't properly insulated, according to a government quality inspection agency in China, where almost 2,000 Note 7s were distributed as test devices. Samsung, which is preparing to get replacements into the hands of customers from Sept. 19, said in a statement that "all Galaxy Note7 replacement devices will be equipped with the battery from other suppliers." For the past few years, Samsung has adopted Quick Charge , a technology developed by Qualcomm Inc.

, throughout its product lineup, including the Note 7. Using specialized chips, circuits and software, the mechanism works in tandem with a specific charger to speed up the process. While that has enabled rapid charging -- up to 50 minutes faster than its predecessor -- it's also pushing up against the physical limits of the materials and design used in battery technology. Gartner's Reynolds noted that fast charging is essentially a solution to the problem of short battery life.

"It's a feature driven by short battery life in general, not something that people really want," he said.

The first batch of Note 7 batteries probably had a flaw in their design that didn't work properly with the chemistry in some units, according to Kyle Wiens, creator of iFixit, a popular website that dissects the innards of gadgets to gauge the ease of repairing the devices. Fast charging "crams as much energy as possible into the battery, and the closer you push it to the edge, the more of a potential safety issue there is," he said.

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Where Can I Find..Pussia Cosplay Boots, Cross and Wig?
Where Can I Find..Pussia Cosplay Boots, Cross and Wig?
The cross you are looking for is called an "Iron Cross" or "Maltese Cross". You should be able to find one for cheap on ebay (look for iron cross pendant or necklace). If you can not find the right size or shape, you can make one out of papier mache or Femo clay (any air-drying clay would work though).1. BeautyforeverKnowing how to care for your human hair wig would be important since it is quite an investment and proper hair care routine will helps your hair wig lasts longer and ensures your wig keep its silky or wavy pattern and looks great at the same time. Beauty Forever human hair wigs use 100% Virgin hair which has not been colored, bleached or permed, so it can last for a long time and looks natural. To keep its natural pattern, here are some professional hair knowledge on how to care for your human hair wig. 1. Avoid High Temperature Do not place your virgin hair wig close to high temperature. Do not use Flat-iron or curler too often, it will cause you hair wig lack of glossy, dry and easy to broken. 2. Hair Wig Washing Wash your human hair wig once about 1-2 month is best, and also it depends on the frequency of wearing. 3. Water Temperature Use cold water or mild water to clean your hair wig, just use normal shampoo is okay, use some hair conditioner to help your hair wig keep shinny and silky. 4. Dry Your Hair Wig Do not use blower to dry your hair wig, use dry towel to suck additional water in the hair, and place it to ventilated place, avoid damage of hair caused by sun exposure. 5. Combing Notice that do not comb your hair immediately after washing, comb it after the hair is dry. When combing your human hair wig, Use special wide brush to comb your hair(steel comb and metal comb is ok, do not use plastic comb), start from hair end to top, this will prevent your hair wig from shedding. 6. Curly Hair Wigs Combing If you have curly hair wig, comb should not be used frequently, use your hand to make it orderly after wearing. 7. When Your Hair Wig Tangling Severely After Long Use If you hair wig is tangling after long use, do not pull your hair, spray some wig-specific non-oily conditioner, and comb it with wide-toothed comb or hand carefully and do not rush, take your time. 8. Do Not Use Hair Spray Do not use hairspray like gel water, pomade to your hair wig, it will make hair be oiled and get messy easily. 9. Use Non-oily conditioner The use of Non-oily conditioner is quite easy: spray a few times before wearing your hair wigs, it will help your hair be silky and bright, and can prevent static electricity, keep your hair moisten, it will be silky like new hair. 10. Not Tie Your Hair Wig Up Too High You absolutely can wear your hair wig up. Just need to know the "rule" that do not tie your hair extensions too high, just in case your own hair leave out. 11. Long Human Hair Wigs Combing If you have long human hair wig, be notice that when you comb your hair, comb a strand of hair several times, from hair ends to top, be patience. 12. Hair Shedding When you found your hair fell out a little bit. Do not be scared, a little shedding is normal when your comb and wearing your human hair wigs. 13. Hair Wig Storing Place your human hair wig in the original packaging if you are not wearing it, shake it and it will be in its original state when you are wearing your hair wig.2. Will this wig look real?no way homie gee. dat wigg loks pretend previous my gansta tyo the be conscious to the homie down the citii block to yoo mama foshizzle mi dawg.ya down? (English)- no way, that wig seems extremly pretend to dramitic proportions3. Why Does Lady GaGa Always wear her wig?REALLY !WAT MAKES YOU THINK SHE WEARS A WIG !!!!!!!!!:P SHE IS A STAR AND RICH!!!!!!!!!!!!!SHE GOES TO THE SALON AND GETS HER HAIR DONE BY PROS!!!!!!!!!!!!THAT MUST BE AN OLD PIC (plus)THAT DOESN'T EVEN LOOK LIKE HER .I BET YOU THAT'S A POSER!!!!!!!!
How to Deal with Stage Fright?
How to Deal with Stage Fright?
Im a dancer and i compete. Stage fright is not easy to deal with. Personally, once I get on stage I feel fine. I just put my whole mind on my dance and nothing else. Before I know it, the dance is over and I remember where I am. Do the same for your solo and you will be fine. Just focus on that and remember to have fun. With that you will outsmart stagefright. Break a leg!!!1. Is Stage 32 a useful website?From the position of an advanced (jaded?) professional, Stage32 is interesting to me in that it allows me to stay in touch with one collective of what people currently mass- percieve as all things "independent film". Not that I agree with much of it, either in reality or ideal.S32 also seems top heavy with aspiring writers which surprises me. .. more actual material is a hopeful thing, much more than people buying cameras and calling themselves filmmakers which serves no one and discredits the entire realm.As a virtual meet-up and think-space for newer creatives, S32 has useful insights and articles as well as lots of the less useful and so very common cheerleading and pop buzz components that scream "wannabe".I have yet to experience any fruitful professional event from my presence there, but then I do not expect that, probably unlike many or most of it's adherents. The bigger question to me is, can anything come of the New Independent Cinema that is proportional to its volume of would -be participants and their high hopes?Zero chance.Newer lottery, same or worse odds... high profile exceptions perpetuating the illusion.Is Stage 32 a useful website?2. Stage One Baby Foods?You can start solids at 4 months, but the recommendation from the AAP is to start at 6 months. If you decide to give him some foods now, keep the portions small. A couple teaspoons a day is plenty. There really is not anything benefits about starting solids early and many infants can have trouble with them so do not feel like you need to start him.3. Can advanced stage cancer be cured?I am not a doctor so I can only speak about my own experience. My mother passed away from ovarian cancer back in September of 2011. She was diagnosed in May of that year. Her cancer was already at stage IV despite having no obvious symptoms right up until just before her diagnosis. Had she been diagnosed at an earlier stage, she would have had a very good chance of being cured. The wife of a friend of mine was diagnosed with Stage III breast cancer that had metastasized to her liver. Her prognosis was not good but she responded very well to the chemotherapy and radiation and had actually gone into remission. Unfortunately she died of a heart attack largely due to the stress the disease and the rigorous treatment has placed on her body. My grandfather was diagnosed with lung cancer at an early stage and he lived with it for about 5 years. It kept coming back and kept being knocked down by the chemo. Eventually his cancer stopped going into remission. In general, an early diagnosis does lead to a better outcome, however, it is not always impossible for late stage cancer to be cured. You do have a better chance if caught early though. Can advanced stage cancer be cured?.4. I have stage fright......?First of all, make sure you practice....everyday. It's best to practice in front of a mirror that way you will know what you look like. Now stage fright is something most people have when they have to perform. The fear of messing up. A secret I can tell you is that EVERYBODY messes up. ...but it's just how good you are at covering it up, and continuing with the performance like nothing happened. So this is why you need to be well practiced. You will be a little nervous......but when you get on that stage.....focus on one point, then do just like you practiced. ...do not look at anyone in the crowd. ..just focus on that one point. You will do fine. If you make a mistake. ...just continue on, and chances are that no one will even notice it. Ok? I wish you the best of luck......and knock 'em dead. Let me know how you do
How to Use Two Hard Drives at Once?
How to Use Two Hard Drives at Once?
How to use two hard drives at once?ok, so you compact the data you want to keep and put it on a flash drive. Your statement about not wanting to format makes absolutely no sense to me. YOu dont just buy a HD because one is full and you dont feel like reformatting as everyone said there are several ways to go about OS conversions. yours seems to be a strange path. and yes, you can merely pnp your second drive, but if you want it to be the primary, you should switch the other drive to be the slave instead of the master.— — — — — —SCSI Hard Drives? What are they used for? Are they outdated?scsi drives are used for data system as in servers and data wharehouses. buying a lot of 9 gigs would not be a wise choise. I would stay away from that. 1 they are old and outdated. 2 9 gigs cant do much today. for the record scsi drives are not outdated, they are not for the home user.— — — — — —How does having two hard drives work?if computer have two (physically TWO) different harddrives, you always can see them as two drives, such a c: and d: if there is only C:, check what size it is. 16GB ssd is mostly used for operating system, but very rarely can be hide for another purpose, even it does not make sense (due price of ssd).— — — — — —Why Do Hard Drives Fail?There is a good summary here.The reasons include:So being knocked during shipping is a possible reason for disk failures, and prolonged use in intense conditions will cause wear to mechanic parts and dust getting in can cause a failure too.The most likely cause of a disk failure if the disk is not defective in some way is just getting worn— — — — — —Should a sys admin backup important data in anyway he can, even if he disagrees with the backup strategy? [closed]i would honestly say it is a failure on both parts.The logistics of the situation might mean that he would have to take away time that he should have been spending doing other, immediate, important tasks.However, ultimately, yes, he should have done something. A bunch of hard drives from here and there would have been better than nothing as has been said repeatedly.On the other hand, the entire purpose of management is to make sure that the people beneath you can do their jobs, and do. and thus from a leadership point of view, the managers failed miserably and can be held equally responsible, if not moreso.— — — — — —Do I need raid with 2 hard drives?RAID is not automatic, but i would recommend using RAID for even MORE increased speed!— — — — — —i bought a hard drive and the computer "sees" it, but wont detect it to install windows!!! Why?As two other answers have said, It sounds like you partitioned the drive, but did not format it. However, you said that you "can save stuff to it." This implies that you did format it. I am not clear on what your problem is, or what you are trying to do. Are you trying to install Windows XP on your new hard drive, so that your computer will boot off of the new hard drive instead of the old? And the Windows install program wo not display the new hard drive as one of the options? But, when you boot (from your old drive), the new drive shows up (as D:, E:, F:, or some other letter) ? First, get into BIOS options setup. Check the boot device order, and other options related to hard drives. Your new drive should be somewhere in the boot order. Try moving it so it comes before your old drive. As a test, see what options the Windows installer gives if you physically disconnect your old drive. Here is one suggestion: Use disk/partition clone software to copy the Windows partition from your old disk to the new. Disconnect the old disk, and configure your system to boot from the new. You can later reconnect the old disk, and erase it. Of course, if your old Windows partition has any problems, those problems will be copied. A place I used to work used Symantec / Norton Ghost for disk/partition clone software. You might do a web search for free software that can do this.
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