
Even though they are not involved in the Chevy Volt project, we follow EEStor on this site because of the remarkable energy storage potential that their technology could represent.
Based on barite, their storage units if shown to perform as they are purported to, could hold several times the energy at a fraction of the cost and weight of lithium-ion batteries, and could have a practically unlimited lifetime.
EEStor is based in Texas and is extremely stealth about their work, although production level storage units are supposed to be delivered by the end of this year to be used in the ZENN electric car.
Today EEStor has broken a long stretch of silence with a press release. They have demonstrated to a third party verification source that they are indeed able to produce their chemical energy storage substrate powder at 99.52% purity. The powder is called CMBT (for ceramic-based barium titanate).
Per the press release, "this level of crystallization provides the path for the possibility of EEStor, Inc. providing the published energy storage for present products and major advancements in energy storage for future products."
It was also verified that the powder could be produced in the 1 micron range with a very limited range distribution, and that the aluminum oxide coating can have a voltage breakdown of 1,100 volts per micron whereas the working target for the EESU is only 350 volts per micron.
ZENN Motor Company has an exclusive licensing agreement with ZENN for use of it in cars and partial ownership. CEO Ian Clifford said this about today’s announcement:
"We see this as a very positive step forward for EEStor. Our next material milestone with EEStor is the third party verification of permittivity of their production materials and we look forward to that as well."
EEStor officials thus far have not responded to requests for comment.
Source (MarketWatch )