[srschrier]

Here's the link to the news report:

http://www.autobloggreen.com/2008/0...pany-makes-modern-lithium-ion-battery-with-s/

 

[Texas]

Hey thanks for the link! We talked about this in an earlier thread but there were no pictures of the new idea. It now appears that the particles on the anode have just been reduced to nanometer size.

I was wondering if they were using the silicon in the form of nanowires like Yi Cui is using for his new anode design (check out the pictures so you can compare):

http://news-service.stanford.edu/news/2008/january9/nanowire-010908.html

The reason Yi Cui went with nanowires is due to the fact that silicon cannot hold up well when it's expanded during charging. The nanowire is supposed to be far more robust.

Thus, I have to question the projected life of this new invention. I'm betting that the life will be too short to be of use for automobiles. Probably will be fine for cell phones however. Of course I'm only guessing but until I see some test results I'm not getting too excited yet.

 

[Jason M. Hendler]

Texas,

... and your basing this opinion on what? ... your purported technical abilities? We've already seen that you couldn't grasp thermodynamics, so it's no surprise you don't grasp how this tech works either.

The silicon nanowires work, not because they are "robust", but because they are simply fixed at one end, and are free to expand, contract and otherwise deform freely without inducing any stresses.

Likewise, this nanotech solution, in which each of these particles is suspended in a matrix, also allows for the free expansion of these particles, so there will be no degradation over cycling. I suspect that these particles needn't touch, because the potential throughout that matrix allows for the propagation of ions through and around these particles.

It is sad that you have little understanding of technology, but love to run your mouth anyway. You can submit all the long winded posts that you want, but your blatantly incorrect assessments will still be dismissed.

 

[Texas]

Still sore about your air car not working out? Don't feel bad, we all enjoy laughing at your nonsense. Oh, did you ever figure out how expensive your air car tank would need to be or how big the tanks for your Volt air motor range extender need to be? Tell me, does that come with a trailer?

Oh, and about the use of silicon in lithium-ion batteries... You are wrong AGAIN! I doubt anyone is surprised. Following is the link for where I based my analysis on (of course I said that I was guessing but you seem to be so confident in your nanotechnology expertise). Where did you base your concept on? I'm guessing you just made it up again. Not that I have ever seen any real numbers out of you. Ok, readers... Here's another one for the book of Jason:


"Silicon placed in a battery swells as it absorbs positively charged lithium atoms during charging, then shrinks during use (i.e., when playing your iPod) as the lithium is drawn out of the silicon. This expand/shrink cycle typically causes the silicon (often in the form of particles or a thin film) to pulverize, degrading the performance of the battery.

Cui's battery gets around this problem with nanotechnology. The lithium is stored in a forest of tiny silicon nanowires, each with a diameter one-thousandth the thickness of a sheet of paper. The nanowires inflate four times their normal size as they soak up lithium. But, unlike other silicon shapes, they do not fracture."

http://www.azonano.com/news.asp?newsID=5572


Jason, don't you even bother to look anything up? My God man! lol. The funny thing is that you will be back for more tomorrow! <shakes head>

 

[Jason M. Hendler]

It's not a question of THAT silicon expands, but the mechanism of their fracture. Ciu, whose name you like to drop, as if you know him, avoided this problem by only fixing one end of his silicon structures. You didn't seem to understand this important aspect of Ciu's design, so quickly dismissed the new silicon nano-particle suspension as equal to the old designs that degraded, where they are actually and inherently more expansion tolerant than Ciu's design.

You have NO vision.

You are a dime a dozen in the engineering world. You retreat to your cookbooks full of formulas, and throw around numbers, but you just can't SEE what is truly occurring.

Sad, sad, sad ....

Fortunately for you, there are ugly Prius's to buy, so you can cling to old NiMH tech, avoiding the Li Ion chemistries that you just can't grasp.

 

[Texas]

Yeah Jason, those silly numbers. Worthless things that they are. I can tell you're not friends with them or probably anyone else. Perhaps my LATD (lets agree to disagree) is not quite strong enough for you. I have decided to stop responding to your fantasy posts. It was useful before but now it's just pitiful watching you struggle. Now where is that ignore button.

 

[omegaman66]

Wow to this thread.

 

[Straightlord]

this argument is so much different than ones ghetto people have in my neighborhood.

 

[OPEC SUCKS]

?

Thanks Guys......

 

[Cybereye]

One question I have in my mind about this type of battery technology I would like to know. Is the battery non-flammable? I guess it too early to tell where this battery technology going to.

 

[BigCityCat]

Here is another one. Can you guys explain this to me? It's above my level.

http://www.superlatticepower.com/20080602/index.html