Gas 2.0

One thing many Americans have been loathe to accept is public transportation. Perhaps it is a feeling embodied in the quote attributed to Homer Simpson that “public transportation is for jerks and lesbians.” Or maybe it’s the fact that America is huge and far too spread out to make public transportation viable for many commuters. Yet even so, public transportation remains one of the smartest choices for much of the US, and, with the green revolution must come greater acceptance of it.

And, when you’re talking public transit, buses make up one of the most important parts, but they are gas guzzlers. So naturally, weening these behemoths off of petrol is a high priority for many city governments. Towards this end, China and Sinautec have been testing a fleet of electric buses equipped with ultracapacitors for quick recharging and zero emissions… and so far it works.

Of course, there is a catch.

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In a somewhat suspect interview that was posted to the web and then subsequently removed (but not before being turned into a transcript), Dick Weir — the clandestine CEO of the even more secretive EEStor — was caught on tape in a 30 minute interview covering many topics that fervent followers of the company have been curious about for a long time.

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A team of US and Korean scientists have announced a major breakthrough in energy storage that could pave the way to a new generation of ultra-efficient electric cars, mobile phones and laptops.

The prototype capacitor, much more powerful than exisiting batteries, is capable of storing power at the same massive density as a supercapacitor (an incredible 10 billion tiny capacitors in every square centimetre), but releasing it as quickly as the fastest electrostatic capacitors.

Speaking about the invention, Gary Rubloff of the University of Maryland said, “Our primary target [for this technology] is as part of a hybrid battery-capacitor system for electric cars, but there are many [potential] small scale applications, [including] better electrical storage systems for cellphones or laptops.”

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Editor’s Note: This is part two of an interview Tetsuya Yokoyama recently had the opportunity to conduct with Honda R&D Chief Engineer, Mr. Yamamoto, at Eco-Products 2008 in Tokyo, Japan. You can read part one here. Mr. Yamamoto is greatly involved in the development of Honda’s hybrid technology including the upcoming 2009 Insight.

As I mentioned in part one of my interview, Honda first introduced the ultracapacitor with the J-VX concept. The J-VX ultimately led to the original production Insight, without the ultracapacitor. Honda also used the ultracapacitor technology on the FCX models (pre-Clarity) for years.

Honda developed their original ultracapacitors, and improved them during the period of FCX development and explains more about it on their web site.

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Editor’s Note: This is the part one of an interview Tetsuya Yokoyama recently had the opportunity to conduct with Honda R&D Chief Engineer, Mr. Yamamoto at Eco-Products 2008 in Tokyo, Japan. Mr. Yamamoto is greatly involved in the development of Honda’s hybrid technology including the upcoming 2009 Insight.

I’d like to thank all the readers who responded to my previous article with questions I could pose to Mr. Yamamoto. I’d also like to thank InsightCentral.net members for responding to that article too! I really appreciate your input, and apologize for taking so long to write this article.

After talking a bit about Green Options Media, Gas 2.0 and Insight Central, the very first question I asked him was about the possibility of using an ultracapacitor in a future Honda hybrid. More than ten years ago, the Integrated Motor Assist (IMA) power train was first introduced with the J-VX concept and was originally developed with an ultracapacitor instead of NiMH batteries.

Mr. Yamamoto explained that Honda engineers have researched ultracapacitor technology in the past but that the technology, although promising, is still too new and has several challenges to overcome. In the end, Honda decided to go with NiMH batteries on the first generation of Insight in consideration of mass production and quality control.

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A newly-granted US patent (PDF) for the upcoming ultracapacitor technology from secretive Texas-based EEStor contains a ton of detailed information about their near-mythical Electrical Energy Storage Unit (EESU), which has the potential to revolutionize transportation and our energy infrastructure.

Apparently one EESU weighs 281 pounds, has a volume of 2.63 cubic feet, can be fully charged in 3-6 minutes, is completely unaffected by temperature, will not explode or catch fire in an accident, and provides 52 kWh of electricity (nearly the same amount of energy the Tesla Roadster battery can hold, which reportedly takes the Roadster about 240 miles).

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Whatever you do, don’t call it a battery.

A research group at the University of Texas at Austin has taken a carbon-based nanomaterial called graphene, and developed it into a device that has the potential to vastly improve upon the energy storage capacity of batteries. Reportedly, graphene could also double the current maximum storage capacity of the group of battery alternatives known as ultracapacitors.

If the research group’s findings bear out when applied to reality, it could mean a complete phase change in the way we approach energizing not only our transportation sector, but our entire energy infrastructure.

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