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jdog2050
Joined: 17 Dec 2006
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Zolt
Joined: 18 May 2006
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 Posted: Thu Nov 13, 2008 12:56 am Post subject: |
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| Haven't seen that in any of the tech reviews outside of korea, so I don't know if it's serious or not, but if it lives up to expectations, the guy stands to make quite a few billion dollars. |
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cheeseface
Joined: 13 Jan 2008
Location: Ssyangnyeon Shi
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| Posted: Thu Nov 13, 2008 1:00 am Post subject: |
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| This has huge potential when it comes to solar and wind energy, not being able to store the enegry as it is created is one of the main problems with renewables. |
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Milwaukiedave
Joined: 02 Oct 2004
Location: Goseong
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| Posted: Thu Nov 13, 2008 4:01 am Post subject: |
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| It is about time we had a battery that lasted more then 3 or 4 hours. Still it could be a few years before the technology hits the market. |
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moosehead
Joined: 05 May 2007
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| Posted: Thu Nov 13, 2008 4:27 am Post subject: |
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 at Hanyang - yeah right - uh huh -
probably paid someone to pilfer their research at a computer lab somewhere - most likely Japan since everyone knows they do the most innovative research - NOT Korea -
don't believe it, not for a second. oops make that a milisecond - hey maybe a picosecond -
Korea Dreaming!!! |
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doc_ido
Joined: 03 Sep 2007
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| Posted: Thu Nov 13, 2008 8:19 pm Post subject: |
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Well, it is being published in a decent journal so assuming there hasn't been any face- and tenure-saving 컨닝 it looks like an interesting breakthrough. As the article points out, a similar thing was reported at Stanford last year.
However, even assuming the manufacturing process (thermal annealing and etching at 900 �C under Ar) can be scaled up to industrial levels, this will only affect the behaviour of the anode. Until there's a similar revolution at the cathode side a real battery won't be able to deliver the kinds of performance gains being talked about.
Personally, I'm hoping for advances in ultracapacitor technology to replace our current generations of chemical batteries. |
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EzeWong
Joined: 26 Mar 2008
Location: Seoul
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| Posted: Thu Nov 13, 2008 8:23 pm Post subject: |
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| Anyone understand the science behind this can explain in layman terms? |
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T-J
Joined: 10 Oct 2008
Location: Seoul EunpyungGu Yeonsinnae
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| Posted: Thu Nov 13, 2008 8:25 pm Post subject: |
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| Some Korean made a more gooder thingy. |
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Passions
Joined: 31 May 2006
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| Posted: Thu Nov 13, 2008 8:37 pm Post subject: |
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Just like how they made a breakthrough with stem cell research??
The day I walk into Best Buy and see it on the shelves is the day I believe it. |
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egrog1717
Joined: 12 Mar 2008
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| Posted: Thu Nov 13, 2008 9:41 pm Post subject: |
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Korea already has super efficent batteries... They're called Kimchi pots... Why do you think they keep so many on top of buildings?  |
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EzeWong
Joined: 26 Mar 2008
Location: Seoul
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| Posted: Thu Nov 13, 2008 10:30 pm Post subject: |
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| Passions wrote: |
Just like how they made a breakthrough with stem cell research??
The day I walk into Best Buy and see it on the shelves is the day I believe it. |
Yeah, in the last 2 years I've read two non-related articles about riveting technology extending battery life.
Neither came to fruition and it was technology that dissapeared.
One of them was supposed to huge. But I haven't heard anything about it for a few months now... |
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nate2008
Joined: 10 Apr 2008
Location: Daegu
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| Posted: Thu Nov 13, 2008 10:48 pm Post subject: |
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| EzeWong wrote: |
| Anyone understand the science behind this can explain in layman terms? |
I'll do my best, but I was a social science major so any chem majors out there, feel free to correct me. Also, chemistry is a complex subject which can only be simplified to a certain extent.
From what I understand, lithium-ion batteries use sheets lithium metal to produce lithium ions. Ions are atoms that have an electric charge. As you may know, atoms have 3 main components: protons, electrons, and neutrons. Protons carry a positive charge, electrons carry a negative charge, and neutrons carry no charge.
In lithium batteries, the lithium ions have a positive charge. This means that the lithium ions being produced have more protons than electrons. These ions are what produce electricity.
When the battery is in use, the ions flow towards the positive end of the battery (because they are positively charged). However, the battery is always producing these ions; they are not only made when the battery is in use. This means that when the battery is not in use (which is most of the time) the ions are just floating around.
So when the ions are not being used, they hang out at the negative end of the battery, which stores them until they are needed. This part of the battery is called the cathode. The more efficiently a cathode can store these ions when they are not in use (and also when they ARE in use), the longer the battery will last. Essentially what these Korean scientists claim to have done is found a material that can be used as a cathode which stores ions 8x more efficiently than currently-used material.
To summarize: Batteries produce electricity all the time, and the Korean scientists found a way to allow batteries to store their own electricity 8x better than current batteries. |
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