News, Reviews, Interviews and Overviews of all things related to EEStor Inc.
Friday, August 1, 2008
Mea Culpa
Instructions for Setting up EEStor Patent Updates
Thanks to Tom Villars, the only non-anonymous reader/commentator on this blog, we have an excellent set of instructions for how to get automated EEStor patent alerts. You will get emailed alerts any time a patent application is updated. This of course will be no substitution for following the thorough and precise slicing and dicing, mincing and hair splitting that takes place here on this blog by the giants of the EEStory, Satya51, TVillars, and Marcus/Steve (who are actually brothers), RichTerm, BookemDano, Nekote and...and last perhaps most, the 875K readers known as anonymous. Thank you, anonymous. Here's an enjoyable blog post about EEStor for you, anonymous. Enjoy.
Thursday, July 31, 2008
Stock Talk

I wanted to start a thread here on the stock movement today. Anyone care to post some analysis or theories about what happened, will happen, might happen, etc?
Also, on a related note, Ive been curious and others have emailed me wondering to what degree it's possible to learn what institutional investors may be invested in Zenn. Any way of learning that through proper channels? Also, does anyone recommend a stock quote embedding widget? I've tried to add one here previously but could never find one that looked good.
Note: for this thread, I'm going to make sure it stays on topic by removing posts that may have better life elsewhere on the blog. Warning complete. -thanks!
UPDATE: within the comments thread, we have this link to a clip that aired this evening on BNN. Good discussion about Zenn's upside potential if EEStor pans out with a rarely recognized reality that even if it doesn't, Zenn has some downside protection.
EEStor Announcement Ultracap Recap
1) Links to original press release and coverage
2) Follow on Interview with Richard Weir
3) Interview with Edward Golla, 3rd party reviewer
4) Zenn's subsequent press release
5) Some technical discussions of the release and related topics.
a) reader Mihkel
b) reader Zawy
c) Prof Randall
6) A charity I support
UPDATE: I'm getting emails that the picture in this post is of an EEStor cell that has "mysteriously" appeared on wikipedia. (i just linked to it) I've seen this before though..I dont think it is an EESU because it looks like it was made from powder that was way too impure to produce an EESU. :-)
A couple format changes
Not a few people are uncomfortable with blog or forum formats such as these. Some people want everything on record and everyone accountable for everything they say. I can see the need for it in certain environments but in a blog, what we're all trying to do here at least is sift through information to arrange coherent narratives to make sense of EEStor and its potential impact on the world or us. Some speech is inherently theoretical even if not identified as such when uttered or written. On this blog, that is evident from the fact that people occasionally delete their comments later. Finally, to reiterate what's been said again and again: do not rely on information on this blog to make investment decisions--consult a professional. No information is offered here or should be construed to help you make decisions about investments. The author if this blog has no special relationship with Zenn or EEStor, has no relations with anyone who has a special relationship with Zenn or EEStor. The single unifying purpose of this blog has been only to centralize information about EEStor and facilitate discussion regarding EEStor and it's many proposed benefits and advantages over various battery markets.
Wednesday, July 30, 2008
Professor Clive Randall Follow Up
We had a good conversation and covered related topics but Randall's views on anything other than the above will need to come from him unless he changes his mind. For the record, I politely as possible tried to repeatedly draw him into further discussion here. He understands that this is an open and ongoing invitation....which actually, since he declined is open to any and all.
I can appreciate Randall's situation and in general, anyone's apprehension with taking part in a blog forum such as this. I'm sure I share with many this similar apprehension.
But again, if you're a skeptic and think some information about EEStor is not receiving enough attention, don't be shy. contact me: eestorblog@gmail.com ....especially if you think you are the person Randall believes is "bang on."
Richard Weir Says Permittivity is Subset of Purity, Prototypes built/tested
Blogger: some people are wondering if your use of the term "milestone" in the press release relates to investment payments or investment milestones.
RW: No. Milestones of production and chemical purity.
Blogger: Why would you issue a press release on something related to purity prior to permittivity?
RW: It all leads to that. Everything we got there is the holy grail of everything we've worked for here. Permittivity, it seems to me people overconcentrate on it. Permittivity is a subset of getting these. If you dont get these, you dont get the permittivity. If you
get these, you get the permittivity and you can set it up at very high levels. This allows us to meet present specifications but more importantly or equally, it's the pathway for future advancement. In 2007, we made a conscious corporate decision to put in our advanced technologies. Of course, thats going to take a little longer! But we did that with very good reasoning behind it. As it states there, there are some mission critical programs out there that we wanted make sure that we could meet. Now what we had (prior to our advanced technology) could certainly meet alot of the programs. Putting our advanced technologies in place...this is why we are so happy.....because this shows the success of our advanced technologies. "
Blogger: Does that mean from a production standpoint that....
(interrupting)
RW: We were [funded].....say this on the blog.....we were [funded] to put a production line in. So what we are putting in here is a production line. (production said slowly and with emphasis)
(note: Weir said "invested in" but probably reads better as "funded"?)
Blogger: Not a lab?
RW: No, we've already done all the R&D and preproduction on this a long time ago. Now our [funding is] to put a production line in. This press release was put out to tell the people of our production successes that we have had.
Blogger: I hate to bring this up because I feel like I'm pretty clear on the information that's out there in regards to what you're saying about production. But still, alot of people still think that you haven't even got a prototype.
RW: We've have made prototypes of this and those have....they were made with technologies that we had at the time. And what I'm telling the people today is in 2007 we made a corporate decision to put in more advanced technologies which we now and this data shows that we hit a home run on these technologies. Prototypes have been built and prototypes have been tested.
Blogger: tested by 3rd parties?
RW: I'm just going to say that. They've been tested and the data has been reviewed by a lot of people.
Blogger: are you following any of the discussions on the web?
RW: [scoffing] I dont follow any discussions. I get to work, get my ass to work and get things done around here. What people say has no meaning to me. What we put out there I thought was dynamite and go from there. Anyway, that's all I can say. Thank you very much.
Blogger: .....one last question, people want to know if Moore's Law.... [phone click]
Thoughts? What's my take? I think someone smarter than me should piece this together. On the one hand, we have all the skeptics beating the permittivity drum with Weir saying essentially that he's focused on production issues not lab or R&D issues. You be the judge.
Richard Weir on EEStor's announcement
here's the link.
thanks mrjerry
Zenn Follow Up to EEStor Press Release
Tuesday, July 29, 2008
Reader Mihkel on EEStor Purity Announcement
Word wraps removed (sorry for 2x post).
While considering solid state electrical energy storage device's (capacitor's) ability to store energy, maximal upper bound for volumetric energy density (energy per unit of volume) can be obtained knowing only operating device's dielectric's permittivity and (operating) electrical field strength. If we allow dielectric's material density (mass per unit of volume) to be known, we have one more energy storage characteristic: gravimetric energy density (energy per unit of volume).
So, formulae for both type of characteristics are:
volumetric: Uv = ε*E^2/2,
gravimetric: Ug = Uv/ρ = (ε*E^2/2)/ρ,
where
U - Energy density,
ε - actual permittivity of substance,,
E - Electric field,
ρ - material density.
ε and E can be calculated: E based on article and ε based on information known before. ρ can be obtained by encyclopedia lookup and making some assumptions. ε = εr*ε0 where εr (or k) is relative (to free space) permittivity of dielectric and ε0 permittivity of free space or the electric constant. Then take the voltage and divide it by the distance it was applied over (over dielectric's thickness) and you get E (E = U/l).
Now we can get computable formulae for a given dielectric considering source data available to us:
volumetric: Uv = εr*ε0*(U/l)^2/2,
gravimetric: Ug = Uv/ρ = (εr*ε0*(U/l)^2/2)/ρ.
I must emphasise we are considering only maximal bounds based on given numbers (not it's production feasibility) about dielectric. To ceramic capacitors, this bound depends only on dielectric's characteristics.
Let's get now source data. U = 350 V and l = 1 µm we take from the article. εr = ~18k has been stated before. For barium titanate, ρ = 6.02 g/cm^3 can be taken from Wikipedia, but we make a wild assumption here, that the actual material has the same density as barium titanate. ε0 can taken from any table of physical constants (ε0 = ~8.85 * 10^(-12) F/m).
Filling formulae with data and letting google's compute engine step into play, we have:
volumetric: Uv = ~2700 Wh/l
gravimetric: Ug = ~450 Wh/kg
(Verify:
Uv – http://www.google.com/search?hl=en&rlz=1G1GGLQ_ENXX252&q=18000*8.85*10^-12F%2Fm*(350V%2Fmicrometer)^2%2F2+to+Wh%2Fl&btnG=Search
Ug – http://www.google.com/search?hl=en&rlz=1G1GGLQ_ENXX252&q=(18000*8.85*10^-12F%2Fm*(350V%2Fmicrometer)^2%2F2)%2F(6.02g%2Fcm^3)+to+Wh%2Fkg&btnG=Search )
:
To put these numbers into perspective, consider enerergy density of current production lithium-ion energy storage: Uv = 270 Wh/l and Ug = 160 Wh/kg.
The key point to make such numbers available is EEStor's proprietary technology achieving dielectric material with outstanding properties, namely: Electrical field E = 350 V/µm (at production level) while maintaining permittivity εr (or k) = ~18k. At field 350 V/µm, one has to watch for two types of breakdowns: electrical and permittivity. 1st one occurs if dielectric (insulator) becomes conductor due to field's strength, 2nd one is the natural property (until EEStor proves wrong?) of high-k (high relative permittivity) dielectrics to loose their permittivity in high field strengths (orders of magnitude below 350 V/µm). I suspect the 1.1 kV/µm stated in the article is the lower one of the two.
This remains the point over which scientific community remains sceptical. EEStor seems to have resolved this problem some time ago and seems to deal with production issues.
To get some clue how these hypothetical maximum bounds relate to real world, one has to take into account that ceramic capacitors need also conductive plates sandwiched between dielectric layers. This makes Uv and Ug smaller, because you have to take plate material into account, which does not store energy. There are also packaging and structural materials, electronics, etc... They also use fields 350 V/µm instead of 1.1 kV/µm (as stated in the article) because of manufacturing process' mistakes and impurities in some points of dielectric material, which brings the electric field value for the two (possible) breakdowns down.
Imagine, if you can enhance the manufacturing process and rise operating electric field from 350 V/µm to somewhere higher? You get a nice boost in energy density, as it is quadratically (as seen from the formulae) proportional to electric field.