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A New Deal for EEStor

A delayed battery technology may indeed be on the way.

By Tyler Hamilton

Tuesday, January 22, 2008

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Earlier this month, a stealthy startup that says its ultracapacitor-based energy storage system could make conventional batteries obsolete took a small step toward proving its many skeptics wrong.

Good-bye batteries?: The startup EEStor says that it has technology that will store ten times as much energy as lead acid batteries.
Credit: Morris County Municipal Utilities Authority

The company, EEStor, based in Cedar Park, TX, has made bold claims about its technology but has so far failed to deliver a working commercial product. However, an agreement announced this month with Lockheed Martin, based in Bethesda, MD, suggests that the company could be making progress--at least enough to convince a major defense contractor that the technology has merit. The agreement gives Lockheed an exclusive international license to use EEStor's power system for military and homeland-security applications--everything from advanced remote sensors and missile systems to mobile power packs and electric vehicles. The technology, Lockheed said in a statement, "could lead to energy independence for the Warfighter."

Lockheed has not seen a working prototype but said that qualification testing and mass production of EEStor's system is planned for late 2008. Lockheed would not disclose the terms of the partnership. "We fully intend to work with EEStor this year to prototype and demonstrate this technology for the soldier," says Lionel Liebman, Lockheed's manager of program development in its applied research division. "We're looking at a lot of applications where the EEStor application can help."

Story continues below

EEStor says that its patented system is a nontoxic, safe, and lower-cost alternative to conventional electrochemical battery technologies, offering ten times the energy density of lead-acid batteries. The company also claims that its system allows rapid and virtually unlimited charging and discharging without significant degradation of the unit. (See "Battery Breakthrough?") But many experts have been skeptical, citing the difficulty of working with the material at the core of the company's system: a ceramic made of barium-titanate.

A lack of news from the company has only fed the skepticism. The last public announcement from EEStor came last January, when it revealed that it had made high purity barium-titanate powders on its first automated production line. But the company has so far failed to deliver units of its storage product to minority investor ZENN Motor, a company based in Toronto that plans to use it in electric vehicles. Originally, the devices were to have shipped in the first half of last year.

Comments

  • Is that redundant?
    "...offering ten times the energy density of lead-acid batteries at one-tenth the weight and volume."

    Wait. Does that mean that it's actually 100 times the storage for the same size, or are you figuring the multiplier in twice? I mean, if it's 10 times the density, of course it's 1/10 the size, for that level of storage. If that's the case, it seems a little misleading to say it twice.

    (If I get a raise from $20 to $40 an hour, and work half the hours, I'm not making twice the money in half the time, I'm making the same money in half the time.)

    Rate this comment: 12345

    Monsterboy
    01/22/2008
    Posts:72
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    • Re: Is that redundant?
      I would also like this to be answered. Seems really important to me, as energy/volume is an important consideration. I assume it must be 10x not 100x though.
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      kevbell
      08/19/2008
      Posts:1
  • EEStor for real
    I've said all along this was the real deal.
    Rate this comment: 12345

    Le Petomane
    01/22/2008
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    • Re: EEStor for real
      Well if it's true why don't they demonstrate it ..... if it's genuine people would all over them ...... where have we heard that before ? ..... or is this invention going to be all talk and no trousers ? .....hmmm...... or is going to placed under a National Secrecy Order for the next ten years like Pat Flanagan's 'Neurophone' because it's too much for us to handle ?
      Rate this comment: 12345

      DJTal
      01/24/2008
      Posts:124
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  • Truth or Scam - We're all waiting
    Certainly hope it pans out - not a scam.

    Everybody is anxiously waiting to see.
    Rate this comment: 12345

    nekote
    01/22/2008
    Posts:132
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  • Is this illegal?
    Just for argument's sake, say that EEstor is highly mismanaged, and they end up not following through with a single claim.  Would they have committed a crime?  What kind of penalties would they face?

    What if they are fully aware that they will not follow through with their promises?  What kind of penalties would they be facing?
    Rate this comment: 12345

    eestor_skept...
    01/22/2008
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    • Re: Is this illegal?
      Gimme a break.  You don't get to sue somebody because they got your hopes up.  It's attitudes like yours that brings innovation to a screeching halt.  Edison failed over 1000 times before he got the light bulb right.  You going to sue him?  Then shut your cake hole.
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      davea0511
      04/11/2008
      Posts:16
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      • Re: Is this illegal?
        Yes you do sue someone for getting your hopes up for the sole intent of taking your money knowing that there was never a chance of a return.  Its called fraud.  Everyone always seems to blame the victim.
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        modotx
        06/13/2008
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  • nobody has seen anything yet
    Keep in mind that NOBODY outside of EEStor has seen anything yet, not even Lockheed.  Don't count on this until you have seen it with your own eyes.
    Rate this comment: 12345

    enantiomer20...
    01/22/2008
    Posts:39
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    • might have seen something
      Nobody has come right out and said they haven't seen anything, that's what's so frustrating.

      In the Lockheed interview with the Volt website the rep from Lockheed carefully skirted answering the question of "have you seen a prototype" by saying they they haven't tested any EESTOR prototypes.

      Some of the other questions that were asked led me to believe that they have seen something. Something more than just pure material.

      When asked if this would have 10X the energy density of lead acid batteries he answered a simple and unequivocal "yes"

      If you've seen someone answer, "we haven't seen anything" then I stand corrected. What I've seen from everyone that's an insider is equivocation and never a simple yes or no.

      What would you see that would be enough to invest millions? To me I want to see how they plan on getting around the problems that Barium Titanate suffer.

      That could be something as simple as coated material that completely blocks the fields that cause BaTi to fail.

      I'd sure want to see something, and I imagine they did see something. They're almost certainly on a binding non-disclosure agreement, in which I'm sure they're forbidden from talking it.
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      asdar
      01/22/2008
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      • Re: might have seen something
        If they have the BT particles coated with something, it will drastically reduce the very high permitivity they are claiming.  They cant have both.
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        CapacitorMan
        04/04/2008
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    • Re: nobody has seen anything yet
      Do you really believe that?

      I believe that everyone who has seen anything has already signed a non-disclosure agreement and they are not going to tell you or me what they have seen.  I also believe that both Kleiner Perkins and Lockheed either have on staff or have access to some of the brightest scientific and engineering minds in the world.  I think they have looked and they have seen something that tells them there is a decent chance that Weir's ESU will work.
      Rate this comment: 12345

      biosubs
      05/20/2008
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  • What about aspects invented by others?
    What is claimed as the EEStor invention is: “A method for making an electrical-energy storage unit comprising components fabricated by the method steps as follow…” It seems that they are claiming as their invention the method by which they combine the inventions of others.

    The ceramic composition that EEStor acknowledges as their basis material is covered by Pat. 6078494 Peter Hansen – U. S. Phillips Corp. Multilayer Capacitor Comprising Barium-Titanate Doped with Silver and Rare Earth Metal. This is described as "A capacitor ... characterized by a high dielectric constant ... and a capacitance with a low voltage dependence."

    It seems to me that the questions to be asked are:

    Are the claims for the performance of the underlying inventions valid?

    Does the performance of the combination equal the sum of the parts?
    Rate this comment: 12345

    CJC_PE
    01/22/2008
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  • fighting global warming would be more useful
    than equipping 'warfighters' with ever improved technology.
    With a global war on global warming going on I think most of us would prefer new battery technology to help on that particular crusade rather than any other.
    Plus ça change...
    Rate this comment: 12345

    weee
    01/23/2008
    Posts:34
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    • Re: fighting global warming would be more useful
      Don't forget that the U.S. military consumes 2% of the total energy used by this country. The military helps the environment and the climate and improves our security by finding effective power storage solutions. The military continues to seek electricity storage solutions for numerous vehicles as well as electronics.
      Rate this comment: 12345

      MakeSense
      04/01/2008
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  • Going green first.
    Keep in mind the customer getting the first production units off the assembly line isn't Lockheed, it's Zenn. They will be used in Zenn's NEV (neighborhood electric vehicle), so a "green" application is first on the block.

    And, there might be any number of reasons that there aren't any agreements announced with more mainstream automotive companies. Maybe no car company trusts that EEStor is real. Maybe EEStor wants to have an open playing field to stimulate competition among EV and PHEV mfgs. Could be EEStor wants too big a licensing payment to exclusively cover automobiles. Maybe the "high-school-type mistakes" are really show stoppers as stated in comments for the last EEStor article like this one:

    "I checked it myself to find the two classical, almost high-school-type physical mistakes:

    [1] Assumption of linear permittivity for high fields, which is not true for high-permittivity insulators, in particular, this Barium Titanate powder.
    [2] The alleged 12% reduction in permittivity due to the coating. "

    Also we haven't seen anything like an exclusive agreement to provide power cells for  laptops or power tools. Both of which would even better with this type of power cell. Your 18v cordless drill could be recharged in 2 minuites, and would run twice as long as the battery you have now. Some new devices would show up in the market that were never cordless before.

    But until EEStor delivers Zenn a working power cell, we'll just have to wait and see. Maybe Lockheed has seen something besides the patent that has been criticized here. It is possible the patent only covers key steps of reproducing their technology, but doesn't provide enough info to recreate their device.

    Lots of people said Nanosolar was a scam, and would never be able to deliver their product as well. Pretty sure they were wrong on Nanosolar, might be with EEStor as well.

    If the skeptics are right, EEStor has charmed another group. Not only have they pulled the wool over the eyes of Kliner Perkins and Zenn, now they have fooled Lockheed Martin as well, a company with a pretty strong background in cutting edge technology.
    Rate this comment: 12345

    cobraphx
    01/23/2008
    Posts:14
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    • Re: Going green first.
      Without getting into whether or not a commercial capacitor is ever produced, I question whether this technology would be useful for powering laptops, portable hand tools, etc.  The high energy storage is achieved by using a very high potential across the plates of the capacitor.  In the case of the ESU intended for the ZENN car, the potential is 3500 volts at full charge.  All of this requires somewhat sophisticated power electronics for both safely charging and safely powering the driven device with a constant voltage derived from a voltage source varying from thousands of volts to a dozen or so volts.

      The military version will use an even greater potential (perhaps double to around 7000 volts???  Probably a good reason why the civilian version will be developed first).  I'm not sure I would want to carry around a laptop or electric drill with a 3500 volt power source.  
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      biosubs
      05/20/2008
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  • Why didn't you ask, Tyler?
    Why didn't you ask Zenn if THEY had seen a prototype, since Lockheed (foolishly, IMO) hasn't? So far, no one else has seen one.  Major figures in ultracap research are saying the patent assumptions about dielectric saturation for EESTOR's ceramic are flat out wrong, based on the kind of mistake made by people who haven't actually worked with the barium-titanate chemistry.

    The happy-go-lucky company managers (and major stockholders) of Zenn either have or have not seen a prototype.  Which is it?
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    Franklin S.
    01/24/2008
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    • Re: Why didn't you ask, Tyler?
      So why do you not email Ian Cliford and ask him yourself.  He will answer you.  He did me when I asked him that question.  He will tell you that due to a non-disclosure agreement that Zenn has sign with Eestor that he cannot confirm nor deny the existence of a prototype.
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      WCHicks
      01/24/2008
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      • Re: Why didn't you ask, Tyler?
        Because I'd rather you do it for me? 

        And now we have the answer:  No one, no one in the whole wide world, will acknowledge the existence of a working prototype. 

        As an ultracap scientist has noted,

        "The energy is not proportional to the voltage squared. That is EEStors problem. Energy is equal to 1/2CV2 only for linear dielectrics. Barium titanate is highly nonlinear, and the energy is approximately proportion to V, not V squared for a high field application like energy storage. EEStor only calculates energy storage -- never measures it, so they don't have to face this reality. By the way -- this creates a factor of several hundred difference between their calculated energy density, and the actual (which I have measured in the lab, and has been verified many times since)"

        AND,

        "The approach being taken is laughable. All of the "production milestones" are related to producing powders with a certain purity or eventually -- meeting a permittivity target. But the initial permittivity at low field doesn't matter a bit. The higher it is, the faster it drops with field. It would take less than two days work to make a small pellet of a current EEStor capacitor material, and actually measure permittivity versus electric field up to the breakdown voltage. Then you could see exactly how much energy is stored, and exactly how fast the permittivity decreases with field. Funny how this data is never taken."

        So, even just testing a small amount of the ceramic in front of an audience would show whether or not it can actually do what everyone else who has worked with barium titanate says it cannot.
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        Franklin S.
        01/25/2008
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      • Re: Why didn't you ask, Tyler?
        If there was a prototype, they would have measured the permitivity, and claimed the next milestone payment of $500K, which they have not.
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        CapacitorMan
        04/04/2008
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  • It's happened before
    Everytime I hear this stuff about the math in the patent and experts in the field it reminds me of the Blue LED. Does anyone remember the birth of the Blue LED? It was perfected by Shuji Nakamura while working at Nichia (A small, pretty much unknown Japanese chemical company). Nakamura took a path most scientists in the field had discounted as unworkable. But this lone researcher and his hunch payed off.

    ---"Meanwhile, back in November 1993, Nichia announced its blue LED, promising at the same time that a blue laser was under development. Nichia's devices are made from an entirely different compound material, gallium nitride. The announcement caught the rest of the industry with its pants down. Gallium nitride had long been written off as fatally flawed. Making a diode requires both positive and negative types of material, and no one had been able to make positive-type gallium nitride."---

    -----" 
    Interview at: http://www.sciencewatch.com/jan-feb2000/sw_jan-feb2000_page4.htm
       SW:  What was it about zinc selenide that made it seem so superior?

       Nakamura: The crystal quality of zinc selenide is very good. The dislocation density, which is a measure of the number of defects in the crystal, was less than 10^3 per cubic centimeter. Gallium nitride was more than 10^10 per cubic centimeter. And when people wanted to make reliable LEDs and laser diodes, they knew that the dislocation density has to be lower than 10^3 or even 10^2. This is just physics.

        SW: That sounds almost insurmountable. How did you get around that defect problem?

       Nakamura: Well,first I needed a MOCVD reactor. MOCVD stands for "metal organic chemical vapor deposition." Since I had money now, I bought a commercial reactor and used it to grow gallium nitride crystals, but I couldn’t get them to grow on the substrate. So I spent two years modifying my commercial reactor and succeeded in making what I called the two-flow MOCVD reactor. Usually a MOCVD has only one gas flow. That’s a reactive gas that blows parallel to the substrate. I added another subflow, with an inactive gas blowing perpendicular to the substrate. That suppressed the large thermal convection you get when you’re trying to grow a crystal at 1,000 degrees. Using this two-flow MOCVD I succeeded in 1991 in making the highest quality of gallium nitride crystals in the world. The dislocatoin density was still 10^10. But there’s another measure of crystal quality, which is hole mobility, and I achieved a hole mobility of 200. That was a world record. The highest hole mobility ever achieved with gallium nitride was 100.

       SW:  So the two-flow MOCVD reactor was the key breakthrough?

       Nakamura: Yes—suddenly it was easy to make any type of gallium nitride. In 1991, I made n-type gallium nitride. The following year I succeeded making p-type using a thermal annealing technique. Now all gallium nitride researchers use my technique for p-type gallium nitride. Another big breakthrough was making the first single crystal of indium gallium nitride, which we needed for an emitting layer. Finally at the end of 1993, I succeeded in making the first commercial-based blue LEDs."------

    Seems to me industry expert's aren't always right. Especially when they say, "this material can't do x because of y". Same was said of gallium nitride, can't make a diode because of defects. Sometimes another property can be leveraged, or the side effect of a undesirable property can be mitigated like in Blue LED. Properties of materials change when talking about the nano-scale (EEStor is using barium titanate nanoparticles). Look at carbon nanotubes, a block of carbon is weak, but a bundle of carbon nanotubes is very strong.

    Keep in mind that there isn't a single advantage to EEStor to show anything to anyone outside an NDA. Can anyone name a single thing? Will you boycott their tech because they didn't prove it worked before it was commercially available? The market is so huge, they can't possibly meet demand if when they start production. They don't need to buy goodwill, or build customer confidence. By giving out information, they do risk other companies catching up to them. If you leak the key information about why it works in spite the math, how long would it be before one of the capacitor experts duplicated it? Of course this is all moot if their tech doesn't work. EEStor isn't Nichia, but it's possible that they are the next Nichia.
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    cobraphx
    01/25/2008
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    • Re: It's happened before
      There are indeed cases of the lone scientific hero, bucking the establishment and finally being vindicated by results.

      But, for every one of those "heros", there are at least 100 lone scientific turkeys, bucking the establishment and fading crankily into obscurity.

      I do hope they having something other than a bug in their power density spreadsheet. I can't see how it would hurt them to allow someone to say "we've seen a prototype" because, in theory, signing up customers implies the same thing, except it would also indicate that the customers weren't daft.
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      GaryB
      01/25/2008
      Posts:53
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      • Re: It's happened before
        Somehow, I don't get it.  The people at EEStor haven't taken a dime of public money and are asking for none.  They intend to have and, in fact, have little contact with the public and they say virtually nothing publicly.

        The whining and crying over the fact that Dick Wier at EEStor won't let the world look over his shoulder as he works to develop his ESU is monumental.  Mr. Wier has nothing to gain by talking and potentially a lot to lose.  He could say things that could invalidate upcoming patents or he could tell competitors things that might cut valuable time and costs from their lab work to do similar things.  What could possibly be his upside??  And Mr. Wier owes none of us anything and certainly nothing by way of explanation as to what he is doing or achieving or not achieving.

        The proof will be in the pudding and all of us outsiders will find out when we find out.  If, at the end of all this, Mr. Wier has produced nothing useful at all, I will personally be thankful for his effort and any knowledge that can benefit future researchers.  If the ESU works as predicted, so much the better.  And if the thing weighs twice as much and stores only half the power, it will still be a huge breakthrough that the engineers will tweak and improve over the coming years.

        Lastly, sometimes wonderful things come out of small labs because these labs have the freedom to explore outside the bounds defined by conventional wisdom (a la Nichia).  It could happen here or it might not.  All whining and crying aside, it is what it is.     
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        biosubs
        01/31/2008
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        • Re: It's happened before
          I generally would agree with the sentiment that "if they have nothing to gain by going public, why would they want to?", but in this case it is uber-wrong. If eestor's technology were verifiable, its value would be nearly limitless. Compare eestor to a123:
          a123 had technology which, while not remotely as fantastical as eestor's, was considered enormously valuable. So a123 lined up investors including Yankeetek, Sequoia Capital,Qualcom, P&G, OnPoint, Northbridge, Motorola, GE, FA Tech, Alliance Bernstien, etc. to raise, all told, more than $130 million dollars... this was done without selling off exclusives to anything at all. Contrast that to eestore, a company that if its technology is verifiable would be valued among the most valuable companies in the world(the total worldwide battery industry is in excess of $50 Billion, and eestore claims to be able to manufacture at specs significantly better than the most expensive batteries for a price of 1/10 the cheapest betteries - this does not count the huge increase in battery demand that would arise if this technology actually DID exist) eestore sold off 3.8% of their company to ZENN for $2.5 million - valueing the company at $65 million, with an option to sell an additional 7.6% of the company at the same terms. Furthermore, eestor agreed to allow zenn an exclusive license to their technology for electric vehicles. If eestor were anywhere near a working prototype with specs similar to what they claim, they would be out of their minds to take an offer that low for so much of their company... venture capitalists would be banging down their door begging for the opportunity to invest for a fraction of the price.
          So in a word, "yes" eestor had huge financial incentive to reveal a working prototype, and they didn't because they do not have one, and I would bet good money that even if what eestor claims is possible, they are not close enough to proving it to make it a rational investment at this time for anyone but the most idealistic investor... hence ZENN. (Yes I know Kliener Perkins invested in them, but that was a long time ago, and Kliener does not seem to have that much faith in the company anymore or it would have directed them to fellow VCs over a company like ZENN.)
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          JackSatan
          01/31/2008
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          • Re: It's happened before
            It's the owner's option as to how he does it.  This owner appears to want to maintain ownership/control.  I have heard that the owner sold the auto exclusive (actually a defined segment of that market) for cash instead of selling equity for cash and I think this was before the Kleiner deal. After the Kleiner deal, the owner sold equity to ZENN for cash with an option that would give ZENN an equity stake roughly equal to Kleiner's if the ZENN option were exercised.  In total, Mr. Wier has probably sold off or optioned around or slightly less than 20% of his company.  Certainly the remaining approx 80% does allow him to maintain control.

            I have no idea if the technology exists and if it does at what stage it is on a path towards commercialization.  It could be that the owner has not developed even a crude proof of concept model because he can't or he may be well on the road to a commercial model and hasn't shown it to outsiders because he doesn't think it appropriate.

            All us outsiders have to evaluate are some patent claims, a dearth of press releases and utterances by EEStor and a brief description of the ESU in the initial offering paperwork by ZENN (probably done well before there COULD have been any sort of prototype.  As to the patents, keep in mind that we live in a world where you can get a patent for a peanut butter and jelly sandwich with the crust cut off (obviously not an obvious invention) so I am not sure what the claims and the paperwork are worth for early stage evaluation by outsiders.

            As to A123's investors which I take to include Yankeetek, Sequoia Capital, Qualcomm, Pa&G and the others, am I to take it that they made their investments on a charitable donation basis and took nothing from A123 in return?  I had thought that they might take equity or some other valuable consideration in return for their investment which would, one way or another, tend to dilute the founder's equity even if it did give the founder a nice salary for some period into the future. 

            There are two ways of obtaining capital to develop an idea.  One is to get as much as you can get by promising as much as you can get away with (I am not saying that A123 or any of the other battery companies have done this) and the other is to get what you think you will need and no more (but keeping the door open to get more if you can demonstrate progress).  Of course there are pathways that lie between the two extremes.  If Mr. Wier has decided he wants to act closer to the second model, does this make him "uber-wrong?"  I would guess that that is a subjective call.  Nevertheless, I have heard people in blogs berating the fellow for over-promising to separate people from their money and for running a scam.  Really?  Who has he scammed?  Kleiner, Perkins?  ZENN?  It doesn't sound to me like these people just fell off the turnip truck.  To the contrary, I suspect these are knowledgeable people who clearly understand that they are making a bet where they could either lose all their money or do very, very well.  These are very sharp and experienced business people.  And they haven't invested very much money anyway in their overall scheme of things.

            Also, I may be wrong, but I think ZENN was involved well before Kleiner so there was probably no issue of Kleiner directing EEStor to ZENN.  And after Kleiner took their stake, ZENN bought some equity that, including option, will give them a stake equal or roughly equal to Kleiner's equity stake.  

            I'm not sure how you know that "Kleiner does not seem to have much faith in the company anymore or it would have directed them to fellow VCs over a company like ZENN."  If Kleiner is disenchanted with EEStor, it is probably because they realize they have invested in a company where they have little or no chance of controlling the company or using their usual VC exit strategy - the IPO.  Mr. Wier doesn't sound to me like he's aiming to be the richest man on the planet or into selling his company and giving up control of his baby.  I am told that he is well past typical retirement age, is eating quite regularly on his IBM retirement and also from his earlier sale of a technology company.  And he has chosen to do it all his way, which probably means a lot to him.

            All the more power to him.  I hope he succeeds.      
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            biosubs
            02/01/2008
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          • Re: It's happened before
            I think you are neglecting the agreement between EEstor and Lockheed Martin which adds a lot of validity to the company.  I find it hard to believe that they would pay for exclusive rights to EEstor technology if they did not have something major to offer.

            EaJ
            http://www.eestorbatteries.com
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            EaJ
            07/23/2008
            Posts:2
        • Re: It's happened before
          Look for the money.

          Do you think its possible there are a bunch of ZENN options floating around? What would be the effect of announcing negative or positive news?
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          CapacitorMan
          04/04/2008
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  • Profile of Mort Topfer - The right man for the job
    http://www.referenceforbusiness.com/businesses/A-F/Dell-Michael.html

    Mort Topfer: Dell's Right-Hand Man

    In 1994, when Michael Dell persuaded Mort Topfer to leave Motorola and come work for him, Topfer only planned to stay a few months. Topfer was fifty-seven, and he and his wife had just built a retirement home in Las Vegas, Nevada. Serving as vice chairman at Dell, however, proved a welcome challenge, and Topfer stayed in that position for five years. He helped Dell realize a prediction he made to PC Week soon after joining the company: "We are going to drive Dell to be the top 2 or 3, and maybe even No. 1 in the business."

    Born in Brooklyn, New York, in 1936, Topfer earned a degree in physics from Brooklyn College, then took a job at RCA Laboratories, where he worked in both research and management. In 1971, he joined Motorola, where he eventually became president of the company's Land Mobile Products Sector. Dell and Topfer first met in January 1994, and the two men discussed their business philosophies for several months before Topfer came to Dell as vice chairman. In that role, Topfer handled the company's planning and manufacturing. Topfer and Dell worked together to split DCC's market into smaller segments, targeting specific products to meet each segment's unique needs.

    Topfer also served as a mentor to Michael Dell, helping him cope with the demands of running a multibillion-dollar company. Even after Topfer stepped down as vice chairman in 1999, he remained one of Dell's closest advisers. He also stayed on the board of directors. In 2000, Topfer founded a new company with his sons Alan and Richard. Castletop Capital manages a $60 million fund to invest in small technology firms, mostly in Texas. Topfer is also active in civic affairs in his adopted hometown of Austin. He and his wife have given millions of dollars to local charities.

    For a time, Dell was also questioned about his lack of charitable giving. In 1995, that changed when his company launched a foundation. Four years later, Dell and his wife Susan started their own foundation. The company's charitable giving focuses on children, particularly health and education. Dell's personal donations—numbering in the tens of millions of dollars—have gone to Texas libraries, theaters, and other organizations.

    Observers say that Dell has matured since he began his company as a nineteen-year-old college student. Unlike some entrepreneurs, he has been able to manage the huge corporation that grew from simple roots. Part of his skill was hiring the right people. One Dell executive told Texas Monthly in 1999 that Dell has another important trait: "His willingness to listen is unbelievable. He detects insight, mines it, absorbs it all, and immediately puts it to use." Just like earlier great "self-made" business owners, Dell has inspired a new generation of Americans to follow their dream and take risks when they come across a new idea.
    Rate this comment: 12345

    afjerry
    02/17/2008
    Posts:7
    Avg Rating:
    4/5
    • Re: Profile of Mort Topfer - The right man for the job
      Hi  I am a US inventor with patents in power conversion technology- some obvious problems come to mind -

      1.  Do we have real world transistors or power controlling devices that work well at 3500 volts ??? (I do not remember the top voltage limit of SCR's)-

      2.  do we have motors that work at 3500 Volts that are safe for extreme environmental use such as an automobile ? (3500 volt storage in a car ? may not be such a good idea ) -

      3.  What is the impedance and conductance ability of these devices ?

      4.  Even if the device can't deliver any serious current what good is it ? 3500 volts at one ampere is 3500 watts -Depends on the conducting impedance
      Lead acid batteries or what ever have the ability to deliver current -Call them high current density devices- This invention though physically sound -Which is all the PTO cares about does not necessarily make it practical for implementation !

      alferi@att.net
      Rate this comment: 12345

      alferi
      07/22/2008
      Posts:1
      • Power electronics for automotive use - answer to alferi
        I am not an electrical engineer but my basic understanding of what would be done is this:

        1.  The motor driving the car would be an AC (vs DC) motor running at perhaps 150-300 volts.  The motor would NOT run at 3500 volts.

        2.  Power to run the motor would be derived from the ESU at whatever voltage the state of charge of the ESU would allow it to deliver.  Keep in mind that the voltage seen across the terminals of this (or any other) capacitor declines from its full charge voltage (3500 v in the case of the eeStor civilian use ESU) to approaching zero as the capacitor is discharged.

        3.  Interposed between the ESU and the motor and other loads would be what is essentially a "smart" inverter.  The inverter would convert the incoming DC from the ESU, at whatever voltage the ESU was delivering at the moment, to AC at whatever voltage and frequency the motor needed in order to do what was asked of it at that moment (accelerate, control rate of acceleration, steady state speed, steady state speed with varying loads as when ascending and descending hills, etc.).  The inverter would also handle the reverse flow of power from the motor to the ESU that was derived from braking the vehicle.  It would also control braking rate.

        4.  The "smart" inverter would incorporate a computer using a real-time operating system optimized for prime mover control in order to accomplish its tasks.  No "blue screens of death” allowed on the highway.  The computer would have to check speed, torque, acceleration, application of the brake pedal, state of charge of the ESU, viability of critical sensors, and other inputs constantly and at predetermined intervals.  The real-time OS would not allow the computer to become "side tracked" by glitches in non-critical modules.

        5.  It is likely that a three phase motor would be used as the drive motor for the advantages it would offer vs a single phase motor in initial acceleration from a full stop.  As the state of the art was developed, the drive system would migrate to use of multiple motors with one at each wheel.

        ------------------
        There is a wide choice of commercially available solid state devices for use at voltages in the range of 3500 v.  There have been for many years.  Voltage capabilities go even higher.  Consider the case of power generated at commercial power stations in the thousands to 10KV+ range which is transformed to hundreds of thousands of volts at very low current for transmission hundreds to thousands of miles. The power is then reconverted to AC at much lower voltages.  All of this is done using solid state devices which have been available for more than a decade or two..
        Rate this comment: 12345

        biosubs
        07/24/2008
        Posts:12
        Avg Rating:
        4/5
  • Seeking comments
    Am seeking comments, both pro and con, on today's (7-29-08) press release by EEStor on certain production milestones. You can view the release here.
    Rate this comment: 12345

    biosubs
    07/29/2008
    Posts:12
    Avg Rating:
    4/5
    • Re: Seeking comments
      I have figured out how they do it.  Instead of keeping it a secret, I decided to make a video and explain it all in detail.  Here it is:

      http://www.youtube.com/watch?v=yIb91pwUmB8

      Brad
      Rate this comment: 12345

      oolagah
      08/15/2008
      Posts:1
  • EEStor
    When( if)  the EEStor will work , it will remain a serious problem for reloading.
    To travel 500 km needs at least 100 kWh.If we want to reload in 6 minutes , we need a power source of 1000 kW . If the operating voltage is 400 V , we need 2500 Amps !
    Pb( at least) : size of wires  !
    Rate this comment: 12345

    glainde
    03/26/2009
    Posts:1

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