and some more eestor news

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Aero
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Post by Aero »

this sounds like old news but its posted as new.

http://industry.bnet.com/energy/1000113 ... o-product/

perhaps in honor of Earth Day, EEStor just decided to put out a brief press release boasting a huge achievement, a relative permattivity of over 22,500 for the barium-titanate powders used in its ultracapacitors. For the non-technical, a capacitor’s permittivity helps determine how much charge the device can hold. The baseline permittivity, using vacuum, is one. The number EEStor is claiming (backed by an external scientist) are up to 1,000 times those of industrial capacitors used today
Aero

MSimon
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Post by MSimon »

Aero wrote:this sounds like old news but its posted as new.

http://industry.bnet.com/energy/1000113 ... o-product/

perhaps in honor of Earth Day, EEStor just decided to put out a brief press release boasting a huge achievement, a relative permattivity of over 22,500 for the barium-titanate powders used in its ultracapacitors. For the non-technical, a capacitor’s permittivity helps determine how much charge the device can hold. The baseline permittivity, using vacuum, is one. The number EEStor is claiming (backed by an external scientist) are up to 1,000 times those of industrial capacitors used today
Not really. They are claiming 1,000X at the voltages they plan to use. At low voltage the number they provide is perfectly reasonable for nanocrystaline BT.
Engineering is the art of making what you want from what you can get at a profit.

Aero
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Post by Aero »

So is that positive or neutral WRT EESTOR's hypothesized energy storage units?

Its positive for EESTOR because now ZENN needs to decide if they are going to invest more money in the EESTOR company. (A result of EESTOR having met the third milestone in their agreement with ZENN.) And positive for we who watch, because the fourth and final EESTOR milestone is a production energy storage unit. In other words, it's time for EESTOR to S**t or get off the P** ! (Pardon the bad language, but it really is time.)
Aero

tomclarke
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Post by tomclarke »

http://hal.archives-ouvertes.fr/docs/00 ... /09039.pdf

IBLC-based dielectrics give even higher k (200,000) and temperature independence. And lousy energy density. But many of those commenting on eestor announcement don't read the scientific literature.

Aero
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Post by Aero »

It looks like ZENN is convinced and is going to pony up some more money. ZENN expects to receive production units late this year. :?:
We will see.

http://www.cleantech.com/news/4494/zenn ... tor-progre
Aero

tomclarke
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Post by tomclarke »

But Zenn's conviction is not based on having seen or tested even a slab of dielectric with the claimed 100X normal best energy density. Their 'milestone' which was meant to verify the technology was permittivity testing at low voltage.

So don't hold your breath! And compared with Polywell - where the science is open and transparent to all, and no-one has claimes to know it will work - eestor release zero information to back up their claims which are very scientifically implausible!

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