Sustainable Energy

A Battery Beyond Belief?

A secret, fast-charging, powerful battery.

Is EEStor of Cedar Park, TX, for real? The secretive company announced earlier this year that it plans to begin shipping a 15-­kilowatt-hour electrical-energy ­storage system that can propel a small electric car 322 kilometers and takes just minutes to charge.

The first peek at a much-hyped new battery technology will come courtesy of electric cars made by Zenn Motor of Toronto.

The first customer: Toronto-based Zenn Motor, which makes electric vehicles. EEStor says its technology is a cross between a battery and an ultracapacitor (which quickly stores and releases energy) and is based on mysterious ­barium ­titanate powders.

This story is part of our March/April 2007 Issue
See the rest of the issue
Subscribe

Company documents claim that the new storage system has better energy density than lithium-ion and nickel-metal hydride batteries, that it charges more quickly, and that it’s cheaper and safer. The implications are enormous and, for many, unbelievable, but the company says it’s all true. “We’re well on our way to doing everything we said,” says ­Richard Weir, EEStor’s cofounder and chief execu­tive.

Become an MIT Technology Review Insider for in-depth analysis and unparalleled perspective.
Subscribe today

Uh oh–you've read all five of your free articles for this month.

Insider Premium

$179.95/yr US PRICE

More from Sustainable Energy

Can we sustainably provide food, water, and energy to a growing population during a climate crisis?

Want more award-winning journalism? Subscribe to Insider Basic.

  • Insider Basic {! insider.prices.basic !}*

    {! insider.display.menuOptionsLabel !}

    Six issues of our award winning magazine and daily delivery of The Download, our newsletter of what’s important in technology and innovation.

    See details+

    What's Included

    Bimonthly home delivery and unlimited 24/7 access to MIT Technology Review’s website.

    The Download. Our daily newsletter of what's important in technology and innovation.

You've read of free articles this month.