Wireless Charging for Drones

Dean Sigler Batteries, Electric Aircraft Components, Sustainable Aviation 0 Comments

In its introduction, Global Energy Transmission Corporation (GET) promises virtually indefinite flight for multi-rotor aircraft.  “GET re-invents [the] commercial drone industry providing [a] technical solution to power drones in 24×7 mode around dedicated area[s]. An electrically powered drone can recharge and fly indefinitely via efficient safe high power in-flight rapid recharging in a GET power hotspot. The company’s distance wireless charging technologies uniquely enable drone delivery and many other industrial applications.and many other industrial applications.”  This wireless charging concept goes back a long way. Tesla’s Dream In the film The Prestige, key parts center on visits to Nikola Tesla’s laboratory in upstate New York, where the tower that dominates the grounds was one of his dreams.  Although never completed in …

Liquid Batteries for Aircraft?

Dean Sigler Batteries, Electric Aircraft Components, Electric Powerplants, Fuel Cells, Sustainable Aviation 0 Comments

NASA is investigating “the integration of nanoelectrofuel (NEF) flow batteries with rim-driven electric motors to produce a safe, clean and quiet propulsion system for aircraft,” according to Aviation Week. That is the promise of an early-stage rechargeable liquid battery technology under investigation by NASA. The agency is researching the integration of NEF flow batteries with rim-driven electric motors to produce a safe, clean and quiet propulsion system for aircraft.  The rim-driven motors are used on boats as thrusters, and may have applications on small unmanned aircraft, although researchers have seen disappointing results so far. Tying these motors to more promising research into” non-explosive energy storage technology” is part of NASA Armstrong Flight Research Center’s Aqueous Quick-Charging Battery Integration for Flight …

Coots and e-Gulls at Oshkosh

Dean Sigler Batteries, Electric Aircraft Components, Electric Powerplants, Sustainable Aviation 0 Comments

Lead image shows Mark Beierle in the Soaring Gull of his design with which he accompanied Richard Steeves to Oshkosh. As many readers know, Richard Steeves, a physician and teacher at the University of Wisconsin – Madison is also a builder and long-time advocate for an amphibious aircraft called the Coot.  He publishes the Coot Builders Newsletter and stages a recurring AirVenture event, a yearly get-together of fellow Coot builders.  Recently, he got into electric aviation and has built and flies Bravo, an e-Gull designed by Mark Beierle.  Richard’s newsletter now features articles about amphibians and electric flight. Mark showed up at Richard’s hangar at the Sauk Prairie Airport, a lovely stretch of green bordered by hangars and bisected by …

Flow Batteries Aging Well

Dean Sigler Batteries, Electric Aircraft Components, Sustainable Aviation 0 Comments

As previously noted in the blog, the Tissandier Brothers flew their Siemens-powered electric airship in 1883 using a flow battery of their own design for energy storage.  This technology gets a lot of attention for grid-based energy storage, but might have use in more mobile applications.  Nano Flow Cell Technologies in Switzerland, for instance, used different salt waters to power their Quant and Quantino automobiles. Howard Handelman, a regular reader of the blog, shared the following two researches into modernizing flow cells.  Stanford and Harvard researchers both cooked up different ingredients than one would normally find in a flow battery.  Both groups achieved better than average performance and longevity. Stanford’s Liquid Metal Approach Stanford’s battery uses liquid metal that more …

Peter Sripol Groundloops – But Check Out Those Motors!

Dean Sigler Electric Aircraft Components, Electric Aircraft Materials, Electric Powerplants, Sustainable Aviation 0 Comments

Peter Sripol is a high-energy model-airplane tester who put a twin-motor electric biplane together out of Home Depot/Lowes parts and flew it successfully.  That was a back of the envelope design that flew nonetheless. Peter did something a little more professional for his second go-round, crafting some professional-looking drawings.  Don’t look for any drawings for the earlier machine, he cautions, explaining there are none  He also wanted a pair of larger, slower turning propellers to move a large volume of air more slowly than the Rotomax 150s installed on the biplane.  He notes he’s looking for a lower kV (turns per Volt input). Peter works with Flite Test, a model airplane outfit seemingly willing to try anything.  That includes the …

From the CRADLE to the Breakthrough  Battery

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Hyundai, the Korean carmaker turning increasingly to electric vehicles, has teamed with Ionic Materials, a Massachusetts-based battery developer to work on an innovative solid-state battery.  Ionic’s solid polymer electrolyte technology promised to improve battery safety and performance.  Liquid electrolytes are often blamed for disastrous battery fires, so the search for a solid-state alternative is one way to counter the problem. Hyundai’s CRADLE (Center for Robotic-Augmented Design in Living Experiences), “corporate venturing and open innovation business,” is investing in Ionic to gain access to the company’s technology, which also supports lithium-ion cells with no cobalt in their cathodes.  Reducing or eliminating cobalt in their batteries may be a major incentive for Hyundai.  Forbes reports, “Carmakers, such as Germany’s BMW, and electronic gadget …

Battery Options for Range and Longevity

Dean Sigler Batteries, Electric Aircraft Components, Sustainable Aviation 0 Comments

Two varying approaches to battery development may hold clues to future directions for energy storage.  At the same time, their announcements, promising as they seem, reinforce our cautious attitudes toward how battery performance numbers are presented. PNNL Attacks the Electrolyte Issue According to Green Optimistic, “Researchers from the Pacific Northwest National Laboratory (PNNL) have developed a new formula for battery’s electrolyte solution to enhance its performance unprecedentedly in terms of its service life and storage capacity or an electric vehicle’s range.” The video gives an overview of what it takes to make a battery and hints at the reasons battery research takes so long to give up improved energy storage devices. Unprecedented the development may be, and the promise of …

Get a Spine!  Flexible, High-Density Energy Storage

Dean Sigler Batteries, Electric Aircraft Components, Electric Aircraft Materials, Sustainable Aviation 0 Comments

The Vertebrate Battery “Prof. Yuan Yang of the engineering school at Columbia University (New York) modeled, designed, built, and fully evaluated a configuration that emulates the spine of vertebrates, while providing 85% of the energy density of a prismatic Li-ion cell with equivalent volume.” According to Power Electronics.com. Professor Yang’s 14-member team, working in the impressively-named Center for Precision Assembly of Superstratic and Superatomic Solids, and  inspired by the flexibility of the human spine and its ability to repeatedly endure bending and twisting, designed a battery that emulates the characteristics of what is in essence a structural battery.  We know from experience that our backbones can perform some pretty extraordinary twists and turns – witness the supple routines of gymnasts …

Ehang Flies One and Two Passengers in Surprising Flight Demonstrations

Dean Sigler Announcements, Electric Aircraft Components, Electric Powerplants, Sky Taxis, Sustainable Aviation 0 Comments

An Executive Perk Unlike Any Other Chinese firm Ehang staged a demonstration of great confidence in its 184 (one passenger, eight motors/rotors, and four arms) autonomous flight vehicle.  The CEO and all executive members of the firm, and Guangzhou government officials got rides, with many giving thumbs-up signs during their trips. Hu Huazhi, Founder and CEO of Ehang, fills us in on numbers.  Over 150 technicians and engineers worked more than 1,000 days and ran over 1,000 test flights to bring the Ehang 184 to its current level of trustworthiness.  Flights held at the Ehang test flight site in Llanyungang City show the founder using stick and rudder to control the machine.  Xiong Yifang, cofounder and CMO for Ehang, flew …

Book Your Perth Alpha Electro Flights for the Early Morning

Dean Sigler Electric Aircraft Components, Electric Powerplants, Sustainable Aviation 0 Comments

Two Things That May Not Seem Related at First Recent news that Penrith, Australia was the hottest place on earth was underlined by videos of melting highways.  Penrith, a suburb of Sydney, reached 47.3° C (117° F), enough to turn asphalt into a sticky mess and force drivers onto less gummy shoulders. Although over 2,400 miles away, Perth, home to Joshua Portlock’s Electro.Aero flying service, is at roughly the same latitude, and experienced near-record heat this month.  Possibly, that accounts for the all-caps caution for prospective flyers: “WE RECOMMEND EARLY MORNING FLIGHTS IN SUMMER FOR THE SMOOTHEST CONDITIONS.” Joshua’s company took delivery of a Pipistrel Alpha Electro, and flew it on January 2, a first in Australian aviation.  He and …