| 10 September, 2007
      
 
      
        Hi Bill, 
      Sent: 
      Sunday, September 09, 2007 7:40 PM 
      
      Subject: RE: more powerful capacitors? 
      Pretty 
      interesting.  The article is right on in saying this is a game changer if 
      it actually works.  Kleiner Perkins, one of the largest blue chip Venture 
      Capitalists in the world obviously believes it can be made to work.  I 
      hope it does.  It would make electric vehicles much more competitive. 
      Love 
      
      Fred.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" 
      /> 
      P.S. 
      Ccing John Horner who follows alternative energy much more closely than I 
      do. 
      
      Interesting.  JD 
        
      
      Battery-like device could power electric cars 
      
       
      
       
      
       
      
       
      
       
       
      An 
      Austin-based startup called EEStor promised "technologies for replacement 
      of electrochemical batteries," meaning a motorist could plug in a car for 
      five minutes and drive 500 miles roundtrip between Dallas and Houston 
      without gasoline. 
      By 
      contrast, some plug-in hybrids on the horizon would require motorists to 
      charge their cars in a wall outlet overnight and promise only 50 miles of 
      gasoline-free commute. And the popular hybrids on the road today still 
      depend heavily on fossil fuels. 
      "It's 
      a paradigm shift," said Ian Clifford, chief executive of Toronto-based 
      ZENN Motor Co., which has licensed EEStor's invention. "The Achilles' heel 
      to the electric car industry has been energy storage. By all rights, this 
      would make internal combustion engines unnecessary." 
      
      Clifford's company bought rights to EEStor's technology in August 2005 and 
      expects EEStor to start shipping the battery replacement later this year 
      for use in ZENN Motor's short-range, low-speed vehicles. 
      The 
      technology also could help invigorate the renewable-energy sector by 
      providing efficient, lightning-fast storage for solar power, or, on a 
      small scale, a flash-charge for cell phones and laptops. 
      
      Skeptics, though, fear the claims stretch the bounds of existing 
      technology to the point of alchemy. 
      "We've 
      been trying to make this type of thing for 20 years and no one has been 
      able to do it," said Robert Hebner, director of the University of Texas 
      Center for Electromechanics. "Depending on who you believe, they're at or 
      beyond the limit of what is possible." 
      
      EEStor's secret ingredient is a material sandwiched between thousands of 
      wafer-thin metal sheets, like a series of foil-and-paper gum wrappers 
      stacked on top of each other. Charged particles stick to the metal sheets 
      and move quickly across EEStor's proprietary material. 
      The 
      result is an ultracapacitor, a battery-like device that stores and 
      releases energy quickly. 
      
      Batteries rely on chemical reactions to store energy but can take hours to 
      charge and release energy. The simplest capacitors found in computers and 
      radios hold less energy but can charge or discharge instantly. 
      Ultracapacitors take the best of both, stacking capacitors to increase 
      capacity while maintaining the speed of simple capacitors. 
      Hebner 
      said vehicles require bursts of energy to accelerate, a task better suited 
      for capacitors than batteries. 
      "The 
      idea of getting rid of the batteries and putting in capacitors is to get 
      more power back and get it back faster," Hebner said. 
      But he 
      said nothing close to EEStor's claim exists today. 
      For 
      years, EEStor has tried to fly beneath the radar in the competitive 
      industry for alternative energy, content with a phone-book listing and a 
      handful of cryptic press releases. 
      Yet 
      the speculation and skepticism have continued, fueled by the company's 
      original assertion of making batteries obsolete -- a claim that still 
      resonates loudly for a company that rarely speaks, including declining an 
      interview with The Associated Press. 
      The 
      deal with ZENN Motor and a $3 million investment by the venture capital 
      group Kleiner Perkins Caufield & Byers, which made big-payoff early bets 
      on companies like Google Inc. and Amazon.com Inc., hint that EEStor may be 
      on the edge of a breakthrough technology, a "game changer" as Clifford put 
      it. 
      ZENN 
      Motor's public reports show that it so far has invested $3.8 million in 
      and has promised another $1.2 million if the ultracapacitor company meets 
      a third-party testing standard and then delivers a product. 
      
      Clifford said his company consulted experts and did a "tremendous amount 
      of due diligence" on EEStor's innovation. 
      
      EEStor's founders have a track record. Richard D. Weir and Carl Nelson 
      worked on disk-storage technology at IBM Corp. in the 1990s before forming 
      EEStor in 2001. The two have acquired dozens of patents over two decades. 
      Neil 
      Dikeman of Jane Capital Partners, an investor in clean technologies, said 
      the nearly $7 million investment in EEStor pales compared with other 
      energy storage endeavors, where investment has averaged $50 million to 
      $100 million. 
      Yet 
      curiosity is unusually high, Dikeman said, thanks to the investment by a 
      prominent venture capital group and EEStor's secretive nature. 
      "The 
      EEStor claims are around a process that would be quite revolutionary if 
      they can make it work," Dikeman said. 
      
      Previous attempts to improve ultracapacitors have focused on improving the 
      metal sheets by increasing the surface area where charges can attach. 
      EEStor 
      is instead creating better nonconductive material for use between the 
      metal sheets, using a chemical compound called barium titanate. The 
      question is whether the company can mass-produce it. 
      ZENN 
      Motor pays EEStor for passing milestones in the production process, and 
      chemical researchers say the strength and functionality of this material 
      is the only thing standing between EEStor and the holy grail of 
      energy-storage technology. 
      Joseph 
      Perry and the other researchers he oversees at Georgia Tech have used the 
      same material to double the amount of energy a capacitor can hold. Perry 
      says EEstor seems to be claiming an improvement of more than 400-fold, yet 
      increasing a capacitor's retention ability often results in decreased 
      strength of the materials. 
      
      "They're not saying a lot about how they're making these things," Perry 
      said. "With these materials (described in the patent), that is a 
      challenging process to carry out in a defect-free fashion." 
      Perry 
      is not alone in his doubts. An ultracapacitor industry leader, Maxwell 
      Technologies Inc., has kept a wary eye on EEStor's claims and offers a 
      laundry list of things that could go wrong. 
      Among 
      other things, the ultracapacitors described in EEStor's patent operate at 
      extremely high voltage, 10 times greater than those Maxwell manufactures, 
      and won't work with regular wall outlets, said Maxwell spokesman Mike Sund. 
      He said capacitors could crack while bouncing down the road, or slowly 
      discharge after a dayslong stint in the airport parking lot, leaving the 
      driver stranded. 
      Until 
      EEStor produces a final product, Perry said he joins energy professionals 
      and enthusiasts alike in waiting to see if the company can own up to its 
      six-word promise and banish the battery to recycling bins around the 
      world. 
      "I am 
      skeptical but I'd be very happy to be proved wrong," Perry said. 
      
      Copyright 2007 The 
      Associated Press. All rights reserved.This material may not be 
      published, broadcast, rewritten, or redistributed. 
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