Submitted on June 10th, 2009 by Kevin (not verified)
It lends unwarranted credibility to EEStor to include it in this article as a viable energy storage device on equal footing with companies and technologies that actually exist.
The statement "Last month, EEStor's claims of high energy density across a broad range of operating temperatures were verified by Toronto-based electric vehicle maker Zenn" is incorrect.
Zenn verified permittivity at 1 Volt and various frequencies across a range of temperatures on some sample that wasn't a finished product, or component of the future product. That's a long way from demonstrating energy density. The final product needs to operate at 3500 Volts to match the hoped for specs. The issue of dielectric saturation that's been raised by knowledgeable critics hasn't been addressed by Zenn or EEStor.
EEStor hasn't ever demonstrated energy density. Zenn's VP of Engineering recently said he hasn't seen the device, or a component prototype tested at voltage, so the energy density is still a mystery to Zenn, and certainly to the public.
I think this story is almost over with. Zenn is now doing a stock sale to try to keep the doors open for a while longer. The details of that sale have yet to be disclosed. If the terms are draconian, you can stick a fork in this story and finally people can forget about it.
A Microsoft spokesman said the company actually has more ...
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It's unfair to include EEStor and Zenn in this article
Submitted on June 10th, 2009 by Kevin (not verified)It lends unwarranted credibility to EEStor to include it in this article as a viable energy storage device on equal footing with companies and technologies that actually exist.
The statement "Last month, EEStor's claims of high energy density across a broad range of operating temperatures were verified by Toronto-based electric vehicle maker Zenn" is incorrect.
Zenn verified permittivity at 1 Volt and various frequencies across a range of temperatures on some sample that wasn't a finished product, or component of the future product. That's a long way from demonstrating energy density. The final product needs to operate at 3500 Volts to match the hoped for specs. The issue of dielectric saturation that's been raised by knowledgeable critics hasn't been addressed by Zenn or EEStor.
EEStor hasn't ever demonstrated energy density. Zenn's VP of Engineering recently said he hasn't seen the device, or a component prototype tested at voltage, so the energy density is still a mystery to Zenn, and certainly to the public.
I think this story is almost over with. Zenn is now doing a stock sale to try to keep the doors open for a while longer. The details of that sale have yet to be disclosed. If the terms are draconian, you can stick a fork in this story and finally people can forget about it.