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2009-10-10 來源: 驅(qū)動之家 核能電池通常被應(yīng)用在軍事或航空航天技術(shù)上，不過通常體積較大。現(xiàn)在美國密蘇里大學的研究小組對外宣稱，外觀僅有硬幣大小，使用壽命可達普通電池100萬倍的微型“核電池”已經(jīng)被研發(fā)出來。 據(jù)悉，他們通過利用微型和納米級系統(tǒng)開發(fā)出了一種超微型電源設(shè)備，這種設(shè)備通過放射性物質(zhì)的衰變，釋放出帶電粒子，從而獲得持續(xù)電流。 該研究小組稱，雖然在很久之前核電池就已經(jīng)應(yīng)用在航天領(lǐng)域，但是在因為大小的限制，在地球上核電池的應(yīng)用還很少。大多數(shù)核電池通過固態(tài)半導(dǎo)體截獲帶電粒子，因為粒子的能量非常高所以半導(dǎo)體隨著時間的推移將受到損傷，為了能讓電池長期使用，核電池被制造的非常大。 該團隊開發(fā)出的微型“核電池”使用某種液態(tài)半導(dǎo)體，在帶電粒子通過時并不會對半導(dǎo)體造成損傷，所以他們得以進一步小型化電池。負責該項目的Jae博士稱，雖然人們總是聞“核”色變，但實際上核動力能源早就被應(yīng)用在例如心臟起搏器、太空衛(wèi)星和海底設(shè)備等多種安全供電項目上。 
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| 離終結(jié)者機器人不遠了。 |
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本來想搜一下更多關(guān)于此事的英文新聞，nnd，news.google.com不讓用，中文google又查不到，真是耽誤事。我搜一下英文科技新聞又能把你們咋地了？也太心虛了吧 關(guān)鍵詞：missouri battery, 搜news.google.com，屢試屢敗 |
| 要穿墻，找我的500群里的那個獅子。他有辦法。 |
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October 9, 2009 3:18 PM PDT Penny-size nuclear battery keeps going and going by Tim Hornyak * Font size * Share * 19 comments * Yahoo! Buzz (Credit: University of Missouri Scientists at the University of Missouri are developing a small nuclear battery that they say can hold a million times more charge than standard batteries. The radioisotope battery, being developed by Jae Kwon of the Department of Electrical and Computer Engineering and other researchers, is the size and thickness of a penny. That makes it smaller than nuclear batteries used in space and military applications. Kwon says it might shrink to less than the thickness of a human hair if the right materials are used. The battery is designed to drive micro/nanoelectromechanical systems (M/NEMS). Such devices include labs on a chip, and biological and chemical sensors. The nuclear battery produces power from charged particles released by radioactive decay. It also uses a liquid semiconductor material, rather than a solid one, to minimize damage to the battery. Kwon said the technology is safe. "Nuclear power sources have already been safely powering a variety of devices, such as pacemakers, space satellites and underwater systems," he noted. The team has applied for a provisional patent on the battery. |
| 體積大還有個原因是射線防護問題。 |
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Two words: Nuclear batteries. Fri Oct 9, 2009 4:10PM EDT See Comments (14) Buzz up!10 votes When I wrote this expose on nuclear-powered laptops [PDF link] in 2005, it was nothing but a juvenile April Fool's joke. It was a prank that most people "got" right off the bat, but it also naturally suckered in a few of the gullible into thinking the dawn of portable nuclear power had arrived. Gag or no, I've remained obsessed with the idea of personal nuclear power ever since. The realist in me understands that it's probably the worst idea ever, what with the radioactivity, hazardous waste, and Iran to think about. But I remain deeply intrigued with the idea. Now comes word that nuclear batteries may actually become an honest-to-God reality, no foolin'. Researchers at the University of Missouri say they've achieved the unthinkable, and that a pint-sized power cell based on radioactive decay can last a ridiculously long time: a million times as long as a conventional battery, enough to keep putting out a charge for hundreds of years. Nuclear batteries already exist, but historically they have been quite large (and used only on things like spacecraft). The new design involves the use of a liquid semiconductor, which is less susceptible to damage from nuclear radiation than solid semiconductors and thus don't break down like the old models do. This also allows for the batteries to shrink in size. One prototype (seen above) is about the size of a coin. There's absolutely no word on how close to commercial viability these batteries are, and given the citizenry's panic over anything atomic, it's hard to imagine we'll have mini-nukes in our iPhones even in the distant future. My best guess is we'll see military applications, where electricity is in short supply or conditions are too extreme for batteries to operate normally, for such batteries to come into play. Your corporate NukeBerry, alas, is probably not to be. |
| 這么小。。。不知道輻射怎么樣 貌似一般都加鉛板防輻射， |
| 不插電的冰箱、電磁爐、電飯寶很快就要出來了 |
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本帖最后由 李冬發(fā) 于 2009-10-12 11:06 編輯 新版的電動車就不再讓螞蟻恨之入骨 |
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聽起來很誘人。但是他說放射線對普通硅半導(dǎo)體有傷害。在改進。 韓國裔教授 Jae Wan Kwon asistant professor (居然還是個 assistant!), Department: Electrical & Computer Engineering. University of missouri . Jae Wan Kwon Assistant Professor Department: Electrical & Computer Engineering Phone: 573-882-0762 Address: 231 Engineering Building West Email: KwonJ@missouri.edu Website: http://mems.missouri.edu/ Research Focus Micro/nanoelectromechanical systems Micro/nano sensors and actuators Biomedical M/NEMS Education Ph.D. and M.S. from the University of Southern California B.S. from Kyungpook National University Jae Wan Kwon is an assistant professor in the Electrical and Computer Engineering Department at the University of Missouri. Before he joined the faculty at MU, he was a postdoctoral researcher at the University of Southern California. He has extensive experience with various M/NEMS research projects. His research interests include micro/nanoelectromechanical systems (M/NEMS), nanotechnology, micro/nanofabrication processing technology, sensors, actuators, and piezoelectric transducers, bio sensors, nano-bio-technology, microfluidic devices and systems, micro/nano power generator and micro/nano energy harvester. Topics Wireless Networks Micro Electro-Mechanical Systems (MEMS) Biomedical Engineering Nanotechnology Health Care Systems Energy Deposition Environmental Engineering Remote Sensing Sensors Systems Design / Analysis Acoustics Nuclear Engineering Physical Electronics http://engineering.missouri.edu/people/faculty/kwonj/index.php |
| 希望能盡快進入民用階段！ |
| 夾在我電動車鉛板間，試試放電能力。呵呵 |
| 核動力汽車也快出來了 |
| 謝謝樓主分享 |
| 硬幣大小“核電池”問世 |
| 強 |
| 硬幣大小“核電池”問世 |
| 真快，希望能早點能用上。。 |
| 果真是這樣,到民用可還有很長時間吧 |
