Another chapter on the EEStor story has now unfolded, this time in the world of trademark patents.

In October, the secretive Texas company EEStor was granted a trademark for "EESU", which stands for Electrical Energy Storage Unit and refers to their unique ceramic battery. The battery is purported to be low cost, lightweight, extremely energy dense, rapidly chargeable, and has a functionally infinite lifecycle. All these attributes are each many times superior to lithium-ion batteries.  Because of these remarkable properties it is hoped to be an ideal solution for electric cars, and is the reason Canadian Zenn Motors has an exclusivity agreement to build them.

Indeed the excitement generated by the potential for these devices is why they are followed here even though they are not directly slated for use in the Chevy Volt nor has GM rendered any opinion on the company. GM promotes an open-door policy for reviewing and testing any new cells companies want to offer. GM executives deny ever receiving an EEStor prototype.

Indeed the public has never seen a working prototype of these batteries yet, and there is debate as to whether one actually exists. EEStor CEO Dick Weir has declined to answer that question when I've posed it to him on multiple occasions. Nonetheless, military giant Lockheed Martin has obtained an exclusive agreement to use the technology in military applications.

In fact, earlier this week a patent was awarded to Lockheed Martin for a body armor vest with a built-in EESU compartment although it is also noted that lithium-ion cells could also be used.  A spokesperson from Lockheed Martin told GM-Volt.com "that product is separate from the rights agreement with EEStor... Not associated."

In any event, the newly discovered EESU trademark patent discloses heretofore unseen preliminary specifications for an apparent EESU model called a 24V-BDHD as follows:

Thanks to EEStor blogger 'B' for the tip, his site is here .

Source ( US Patent and Trademark Office )