硬币大小“核电池”问世

2009年10月10日 13:10    老郭
关键词: 核电池 , 问世 , 硬币
2009-10-10 来源: 驱动之家

核能电池通常被应用在军事或航空航天技术上,不过通常体积较大。现在美国密苏里大学的研究小组对外宣称,外观仅有硬币大小,使用寿命可达普通电池100万倍的微型“核电池”已经被研发出来。

据悉,他们通过利用微型和纳米级系统开发出了一种超微型电源设备,这种设备通过放射性物质的衰变,释放出带电粒子,从而获得持续电流

该研究小组称,虽然在很久之前核电池就已经应用在航天领域,但是在因为大小的限制,在地球上核电池的应用还很少。大多数核电池通过固态半导体截获带电粒子,因为粒子的能量非常高所以半导体随着时间的推移将受到损伤,为了能让电池长期使用,核电池被制造的非常大。

该团队开发出的微型“核电池”使用某种液态半导体,在带电粒子通过时并不会对半导体造成损伤,所以他们得以进一步小型化电池。负责该项目的Jae博士称,虽然人们总是闻“核”色变,但实际上核动力能源早就被应用在例如心脏起搏器、太空卫星和海底设备等多种安全供电项目上。

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wangkj 发表于 2009-10-10 13:56:44
离终结者机器人不远了。
老郭 发表于 2009-10-10 14:18:42
本来想搜一下更多关于此事的英文新闻,nnd,news.google.com不让用,中文google又查不到,真是耽误事。我搜一下英文科技新闻又能把你们咋地了?也太心虚了吧

关键词:missouri battery, 搜news.google.com,屡试屡败
wangkj 发表于 2009-10-10 14:55:50
要穿墙,找我的500群里的那个狮子。他有办法。
原野之狼 发表于 2009-10-10 15:07:42
October 9, 2009 3:18 PM PDT
Penny-size nuclear battery keeps going and going
by Tim Hornyak

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(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.
chunyang 发表于 2009-10-10 15:09:30
体积大还有个原因是射线防护问题。
原野之狼 发表于 2009-10-10 15:10:43
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.
huangqi412 发表于 2009-10-11 12:41:00
这么小。。。不知道辐射怎么样   貌似一般都加铅板防辐射,
李冬发 发表于 2009-10-12 11:01:11
不插电的冰箱、电磁炉、电饭宝很快就要出来了
李冬发 发表于 2009-10-12 11:01:52
本帖最后由 李冬发 于 2009-10-12 11:06 编辑

新版的电动车就不再让蚂蚁恨之入骨
gusto 发表于 2009-10-12 23:04:20
听起来很诱人。但是他说放射线对普通硅半导体有伤害。在改进。

韩国裔教授 Jae Wan Kwon asistant professor (居然还是个 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
terrysun 发表于 2009-10-14 14:23:21
希望能尽快进入民用阶段!
rainsky007 发表于 2009-10-14 15:43:52
夹在我电动车铅板间,试试放电能力。呵呵
zengguangjun 发表于 2009-10-15 08:18:51
核动力汽车也快出来了
ttlasong 发表于 2010-5-29 19:49:47
谢谢楼主分享
ttlasong 发表于 2010-5-29 19:50:05
硬币大小“核电池”问世
pjar 发表于 2010-6-21 13:20:42
nuaachu 发表于 2010-7-1 15:25:46
硬币大小“核电池”问世
wuwei203 发表于 2010-7-4 22:59:39
真快,希望能早点能用上。。
sansanlu 发表于 2011-3-16 20:14:55
果真是这样,到民用可还有很长时间吧
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