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New ceramic battery may replace gas engines
Texas company is working on an "energy storage" device made from ceramics. It's not technically a battery because it doesn't use chemicals. It can allegedly charge within 5 minutes with enough energy to move a car 500 miles on about $9 worth of electricity -- about 45 cents a gallon.
According to the patent, the device is made of a ceramic powder coated with aluminum oxide and glass.
Company is very secretive, and has taken down its website.
- "A ceramic power source for electric cars that could blow away the combustion engine." (CNN; Sept. 20, 2006)
February 1, 2009
- "...Lyle Dennis from GM-Volt.com asked GM's head of battery research, Denise Gray, about the stealth company. She said that GM had communicated with them a good deal, but stopped short of saying that they'd seen a prototype, saying that that was confidential. The transcript is below the fold, but I was lucky enough to have the camera running so you can watch her full answer above.
- EEStor's "electrical power storage unit" (it's not technically a battery) is promised to be 10x lighter than a lithium ion battery, store more power, charge in minutes and come in at half the cost. And while that sounds like the sort of technology that would solve all kinds of ecogeeky problems (from power storage for renewable energy to cheap electric cars) no one has yet seen a working prototype, much less a factory producing them."
July 29, 2008
- EEStor Announces Certification of Additional Key Production Milestones and Enhancement of Chemical Purity -
- EEStor, Inc. has certification data from outside sources that purified aluminum oxide, in the range that EEStor, Inc. has certified, can have a voltage breakdown of 1,100 volts per micron. The target working voltage of EEStor's chemical processes is at 350 volts per micron. This provides the potential for excellent protection from voltage breakdown.
- EEStor, Inc. has achieved success on one of its most critical technical milestones and that is the certification of the completeness of the powder crystallization of the constituents utilized in producing its CMBT powders. The percent of the constituents crystallized in the CMBT powders ranged from 99.57% to 100.00% with the average being 99.92%. This level of crystallization provides the path for the possibility of EEStor, Inc. providing the published energy storage for present products and major advancements in energy storage for future products.
- EEStor, Inc. has certification data that indicates achieving powder particle of 1 micron and distribution along with the aluminum oxide particle coating assists EEStor, Inc. in meeting the energy storage stabilization over the temperature range of interest for key applications.
- EEStor, Inc. published patent, application number 5812758, indicates the flexible matrix concept that could provide the potential of multiple technical and production advantages. One of the technical advantages indicated is assisting in providing polarization of the ultra capacitors. Polarization along with other proprietary processing steps provides the potential of a polarization saturation voltage required by EEStor, Inc. (MarketWatch; July 29, 2008)
January 9, 2008
The company publicly announced that Topfer was joining the board.
Lockheed-Martin signed an agreement with EEStor for the exclusive rights to integrate and market EESU units in military and homeland security applications.  This was widely seen as lending a great deal of credibility to the company and its technology; ZENN, who had been taking flak for their investment in EEStor, saw their stock increase by 28%. Lockheed has not yet tested prototypes, but did tour EEStor's facilitity and analyzed their technology and methodology. Lockheed was "very impressed" with EEStor, noting "they are taking an approach that lends itself to a very quick ramp-up in production." The two companies look to complete joint product testing over the course of 2008."
"In November, Ian Topfer, a former vice chair of Dell, left the board of EEStor with no explanation given, leading to some concern as to the future of the company." 
- Utilization of poly(ethylene terephthalate) plastic and composition-modified barium titanate powders in a matrix that allows polarization and the use of integrated-circuit technologies for the production of lightweight ultrahigh electrical energy storage units (EESU) US Patent 7466536, by Richard Weir.
An electrical-energy-storage unit (EESU) has as a basis material a high-permittivity composition-modified barium titanate ceramic powder. This powder is single coated with aluminum oxide and then immersed in a matrix of poly(ethylene terephthalate) (PET) plastic for use in screen-printing systems. The ink that is used to process the powders via screen-printing is based on a nitrocellulose resin that provide a binder burnout, sintering, and hot isostatic pressing temperatures that are allowed by the PET plastic. These lower temperatures that are in the range of 40.degree. C. to 150.degree. C. also allows aluminum powder to be used for the electrode material. The components of the EESU are manufactured with the use of conventional ceramic and plastic fabrication techniques which include screen printing alternating multilayers of aluminum electrodes and high-permittivity composition-modified barium titanate powder, sintering to a closed-pore porous body, followed by hot-isostatic pressing to a void-free body. The 31,351 components are configured into a multilayer array with the use of a solder-bump technique as the enabling technology so as to provide a parallel configuration of components that has the capability to store at least 52.22 kWh of electrical energy. The total weight of an EESU with this amount of electrical energy storage is 281.56 pounds including the box, connectors, and associated hardware. Image
- US 7033406 - Electrical-energy-storage unit (EESU) utilizing ceramic and integrated-circuit technologies for replacement of electrochemical batteries; Weir, et al. (April 25, 2006)
- An electrical-energy-storage unit (EESU) has as a basis material a high-permittivity composition-modified barium titanate ceramic powder. This powder is double coated with the first coating being aluminum oxide and the second coating calcium magnesium aluminosilicate glass. The components of the EESU are manufactured with the use of classical ceramic fabrication techniques which include screen printing alternating multilayers of nickel electrodes and high-permittivitiy composition-modified barium titanate powder, sintering to a closed-pore porous body, followed by hot-isostatic pressing to a void-free body. The components are configured into a multilayer array with the use of a solder-bump technique as the enabling technology so as to provide a parallel configuration of components that has the capability to store electrical energy in the range of 52 kWh. The total weight of an EESU with this range of electrical energy storage is about 336 pounds.
"EEStor is backed by VC firm Kleiner Perkins Caufield & Byers, and the company's founders are engineers Richard Weir and Carl Nelson." 
In the News
- Storage > Capacitors > EEStor >
EEStor announces energy density milestone - EEStor Inc. has announced that it has successfully completed production of an electrical energy storage unit (EESU) dielectric layer that will potentially allow its technology to achieve an energy density which would be competitive against all other electrical energy storage technologies. (PRNewswire; July 21, 2012)
- Storage > Batteries > Capacitors >
Khosla-backed Recapping – An EEStor Competitor? - Recapping is described as “a novel energy storage device – a high energy density capacitor – based on a 3D nanocomposite structure,” that can deliver “high cycling ability, high power density, and low cost.” They will be shooting to have energy densities in the range of 400Wh/kg and a target cost of around $250/kWh, which would be a similar range to EEStor. (Earth2Tech; June 6, 2010) (Thanks Mark Dansie)
- "We have received a request to certify EEStor's product," said Priya L. Tabaddor, PhD, Global Energy Services, Underwriters Laboratories, Inc."
- Who Killed the Electric Gas Tank? - A somewhat skeptical look at EEStor, which says they can make "power storage devices" (not technically batteries, more like peculiar capacitors) that can hold 10x more power than advanced lithium ion cells. These "electrical energy storage units" will be lighter than the most advanced batteries in the world, can charge in minutes and will last forever. (The Oil Drum; July 15, 2009)
- EEStor was Granted a New Patent on the EESU Revealing Extensive Details' - The patent is a highly information-rich document that give a remarkable insight into these potential devices. EEStor notes “the present invention provides a unique lightweight Electric-Energy Storage Unit (EESU) that has the capability to store ultrahigh amounts of energy”. (GM-Volt; Dec. 21, 2008)
- Better Batteries Charge Up - A Texas startup says that it has taken a big step toward high-volume production of an ultracapacitor-based energy-storage system that, if claims hold true, would far outperform the best lithium-ion batteries on the market. (Technology Review; August 5, 2008)
- EEStor's Weir on ultracapacitor milestone - Richard Weir, president and CEO of EEStor, told the Cleantech Group his company's certification announcement is significant.(CleanTech; July 30, 2008)
"It certainly allows us to meet present specifications and major advances in energy storage in the future," he said. "It'll meet the voltage, we say that, it'll meet the polarization, saturation, we say that."
EEStor is developing an ultracapacitor which it said will be longer lasting, lighter, more powerful, and more environmentally friendly than current battery technologies.
- EEStor: The Story So Far - EEStor announced Tuesday that they third party validation of the equipment, procedures and techniques has been completed. The company says its technology can provide 10 times the energy of lead-acid batteries at one tenth the weight and half the price. (Earth2Tech; July 30, 2008)
- EEStor Beyond Permitivity- On one end of the facility, there are raw chemicals and the other end is a printing facility that prints capacitors 24inches round and then cuts them to spec as at an Integrated Circuit Fabrication Plant. What Weir is building is a blueprint of a fully integrated, fully automated production line. This is a "no touch" production line from start to finish. (BariumTitanate Blog; July 18, 2008)
- EEStor Advanced Capacitor Best Use In A Hybrid Car - Assuming that supplies of this new capacitor may be limited, or that the capacitor may not be as inexpensive as EEStor expects, the best value-add for this technology will be for use in gasoline electric hybrid vehicles. (Global Warming Examiner; June 24, 2008)
- EEStor Technology: The End of Batteries? - (1-page PDF) Texas-based EEStor is not exactly proposing a new battery, since no chemicals are used. Ultracapacitors have an advantage over electrochemical batteries (i.e. lithium-ion technology) in that they can absorb and release a charge virtually instantaneously with virtually no deterioration. Batteries trump ultracapacitors in their ability to store much larger amounts of energy at any given time. EEStor's take on the ultracapacitor - called the Electrical Energy Storage Unit, or EESU - combining the best of both untracapacitors and batteries. (Natural News; April 20, 2008)
- Ultracapacitors: the future of electric cars or the 'cold fusion' of autovation? - ZENN says its electric car will cruise for 250 miles on a single five-minute charge. Skeptics cry shenanigans. Tom Weir, EEStor's vice president and general manager, responded to e-mailed questions. "EEStor's technology has the opportunity to touch every aspect of daily life from very big to very small devices," Mr. Weir writes. "We also see a whole new generation of products ... based around our technology." (The Christian Science Monitor; April 16, 2008)
- Zenn Still Planning on EEStor - ZENN anticipates EEStor capacitor based energy storage systems will be commercialized and is making plans to incorporate it into its low speed electric car. ZENN is investigating longer-range highway capable electric vehicles that have a top speed of 65 to 75 mph and a single-charge range of 200 to 400 miles. (The Energy Blog; Feb. 21, 2008)
- Lockheed Martin to use EEStor's ultracapacitors - Lockheed Martin, the world's No. 1 defense contractor, plans to integrate and market EEStor's units for military and homeland security applications. The company said EEStor is developing a ceramic battery chemistry that could provide 10 times the energy density of lead acid batteries at one tenth the weight and volume. (Cleantech.com; Jan. 10, 2008)
- Is EEStor delaying its power system for cars? - EEStor CEO Richard Weir said that commercial production of its energy storage system--a device that holds electricity and functions somewhat like a battery--will be sometime in the next 10 months or so. The unit is also referred to as an "ultracapacitor." "We intend to be in production on or before the middle of next year," he said. (CNET News; Sep. 4, 2007)
- See You Later, Batteries! - EEStor promised a battery replacement technology that would enable a motorist to plug in a car for five minutes and drive 500 miles roundtrip without gasoline. The technology could provide efficient, lightning-fast storage for solar power. Skeptics fear the claims stretch the bounds of existing technology to the point of alchemy. (ABC News; Aug. 31, 2007)
- ZENN Motor Company Invests in EEStor - ZENN Motor Company has an option for additional investment, following EEStor's successful completion of permittivity (electrical storage capacity) testing of its high-power-density ceramic ultracapacitor (EESU). The EESU could potentially allow ZENN vehicles to go as far and as fast as a traditional car at a fraction of the cost. (Green Car Congress; Apr. 30, 2007)
- "Game-Changing" Energy Storage - According to patent documents, EEStore's ultracapacitor power system will "replace the electrochemical battery" in almost every application, from hybrid-electric and pure-electric vehicles to laptop computers to utility-scale electricity storage. (MIT Technology Review; Jan. 22, 2007)
- The Replacement For the Battery? - (Slashdot; Jan. 23, 2007)
- EEStor Announces Production Milestones - The first EEStor production line has been proven to meet quality control requirements and its key production chemicals have been certified. EEStor will begin shipping 15 kilowatt-hour Electrical Energy Storage Units (EESU) to ZENN Motor Company in 2007 for use in their electric vehicles. (PESN; January 17, 2007)
- When EVs Roam Capitol Hill - “[ZENN president Ian Clifford] is confident that EEStor will pull the wraps of their mysterious ‘battery’ very soon; his exact word was ‘imminent’ …‿ (Bill Moore, EV World, November 29, 2006)
- Eestor Update - There is no news, just hype from an article where someone probably said too much for his own good. (September 26, 2006)
- Gentlemen, stop your engines - EEStor's new automotive power source could eliminate the need for the combustion engine - and for oil. "The Technology is not just for the small passenger vehicles, but could easily replace the 300-horsepower brutes in today's SUVs." (CNN Business 2.0; Sept. 20, 2006)
- Charge in 5 minutes, Drive 500 miles? - links to CNN article, with 300+ comments. (Slashdot; Sep 26, 2006)
- Feel Good Cars Tuning Up for Production; EEStor ESU on Track - The EEStor ESU is projected to offer up to 10x the energy density (volumetric and gravimetric) of lead-acid batteries at the same cost. (GreenCarCongress; April 14, 2006)
- EEStor Capacitors- "This could change everything" - Review of Toronto Star breaking story. (TreeHugger; March 6, 2006)
- EEStor Ultracapacitor Shuns Publicity - The company is very wary of publicity and the following, which Tyler meticulously chased down, is about all that is known about their technology. (The Energy Blog; January 27, 2006)
- EESTOR who? EPOD also working on vehicle ultracapacitor (AutoblogGreen; May 11, 2007)
- More on the EESTOR supercap rechargeable power source (Keelynet; 3/11/06 and 3/12/06)
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