Sion Power, Airbus, UAE Team Up to Set Dubai Altitude Record

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

First, let’s get the new acronym out of the way.  The solar-powered flyer recently setting records in Dubai is part of the Airbus High Altitude Pseudo-Satellite (HAPS) program.  One headline led off with “What’s the HAPS?” leaving your editor saddened by not having thought of it first.  Such craft were previously referred to as HALEs (High Altitude Long Endurance) platforms. It’s also part of the Emirates Institution for Advanced Science and Technology (EIAST), a kind of Middle-Eastern STEM program promoting technological advancement and sustainable development in Dubai and the United Arab Emirates (UAE). The airplane set three world records in 2010, flying over the desert Southwest in America as part of Qinetiq’s development program.  It managed 336 hours 22 minutes …

Lithium Sulfur Batteries – Energy Storage at New Heights

Dean Sigler Electric Powerplants, Sustainable Aviation 2 Comments

Last year, Oak Ridge National Laboratory (ORNL) announced that researchers had “successfully demonstrated that lithium-sulfur battery technology can indeed outdo lithium-ion on several fronts.”   Theoretically, lithium-sulfur batteries could be four times as energy dense as today’s lithium-ion batteries, but that promise had yet to be demonstrated.  ORNL took initial steps toward that goal, and within the last few months researchers at Vanderbilt University have shown a strong lead in forming lithium-sulfur batteries with commercial potential. Echoing work done at Sakti3, ORNL researchers demonstrated an all-solid-state lithium-sulfur cell, addressing flammability issues shared by batteries with solid electrolytes.  Using lithium polysulfidophosphates (LPSPs) in the cathode, and which have ionic conductivities eight times higher than that of lithium sulfide (Li2S) the team coupled …

Battery Prices and Lithium Futures

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

EV World has a weekly email update to which your editor subscribes.  Because they provide a collection of articles and opinions from different sources, one often comes away questioning trends and even facts – or sometimes the meaning of it all. This week, an article referenced from Green Car Reports says that EV batteries may already have fallen to $250 per kilowatt hour.  This would be a godsend for sales of battery-powered cars, because sticker prices would drop sharply.   The article quotes Wolfgang Bernhart, a partner at Rolan Berger Strategy Consultants, that battery prices are already much lower than previous predictions would have indicated, possibly as low as $250 per kilowatt hour.  His analysis credited economies of scale for this …