BASF Patent For Barium Titanate Ultracapacitor
Update 12/17: A lot of interesting and heated discussion at Clean Break about this, including an anonymous commenter who claims that energy stored is proportional to ½cV for non-linear dielectrics (which barium titanate supposedly is) rather than ½cV2 for linear dielectrics. One sign — and I agree — we should look for is an actual lab measurement of the properties they believe they can meet. Supposedly this is done in WIPO patent WO/2006/026136. Judging by the tone and arguments raised, it appears the same Anonymous (who may have been a former Maxwell Corp. employee) has been busy recently on Boing Boing as well.