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Zenn boosts stake in EEStor's energy storage

Electric car maker is moving ahead with plans to use EEStor's ultracapacitors, which the latter claims--with some dispute--will yield an affordable car-battery pack.

By May 26, 2009


GM working with EEStor for Volt

GM-Volt blog gets GM to admit to looking at battery technology from EEStor.

By February 2, 2009


Zenn, EEStor detail plans for highway-capable electric car

The CityZenn will hit a top speed of 80 miles per hour--but more importantly, it will be rechargeable in five minutes.

By April 1, 2008


Lockheed signs deal with EEStor

Defense contractor plans to evaluate energy storage systems from the ultracapacitor start-up. If all goes well, Lockheed will begin incorporating them into products.

By January 10, 2008


Ultracapacitors look to fit into energy storage

Batteries get all the attention when it comes to electric vehicles and grid storage, but ultracapacitor companies say the bursts of power they provide can play a role.

By September 29, 2009


Topfer, former Dell vice chair, bugs out at EEStor

The secretive Texas company loses a big fish on the board.

By November 5, 2007


Fisker to announce $39,000 plug-in?

Kleiner Perkins partner hints at a big announcement in coming weeks from one of its transportation investments. Karma maker Fisker is the most likely candidate.

By September 16, 2009


Is EEStor delaying its power system for cars?

The start-up's futuristic ultracapacitor--a device that holds electricity and functions somewhat like a battery--may not hit the market until 2008.

By September 4, 2007


Zenn plans to be the 'Intel Inside' of electric cars

Electric automaker tells investors that EEStor will come through on battery promises, mentions talks with partner for Zennergy drivetrain.

By March 26, 2009


Green news harvest: Solar iPhone case, clean tech bucks economic blues

Green PC reviews; solar start-up Suniva's signs $500 million deal; DOE labs pursue zero-net energy buildings; wacky green-tech company ideas; Nissan's Eco Pedal helps stop lead foot driving; Paris Hilton's hot energy plan; and a reality check on EEStor.

By August 6, 2008