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There are applications that require multiple electric machine drives, such as electric or hybrid electric vehicles, where there is a main traction motor and one or more accessory...
Briefs: Electronics & Computers
High-Energy Lithium Flow Cells with Sulfur Anodes
Li-ion batteries offer considerable advantages such as high gravimetric and volumetric energy densities, and good calendar life and shelf life compared to aqueous systems such as Pb-acid, Ni-Cd, and Ni-MH. Various Li-ion chemistries with different Li-intercalating cathodes have attained...
Technology Leaders: Electronics & Computers
Exciting new technological innovations are making the planet cleaner, people healthier, food more plentiful, transportation speedier, communication more accessible,...
Briefs: Electronics & Computers
A method was created for electroless deposition of conformal ultrathin (<20 nm) metal oxides on the high-surface-area walls of commercial carbon nanofoam papers, typically 0.1–0.3 mm thick. The resulting...
Application Briefs: Energy
Plano, TX
www.plm.automation.siemens.com
The use of lithium-ion (Li-ion) batteries has made the electric vehicle (EV) a...
Briefs: Energy
Innovators at NASA’s Glenn Research Center have developed two novel technologies that make Stirling engines more efficient and less costly. First, Glenn’s thermoacoustic power converter uses sound to turn heat into...
Articles: Automotive
With every passing year, it's getting more difficult to recognize the current crop of passenger vehicles as the descendants of Henry Ford's Model T. Those first mass-produced vehicles didn't even...
Briefs: Electronics & Computers
High-Voltage Supercapacitors for Improved Energy Density Hybrid Power Sources
Both the aerospace and automotive industries depend increasingly on electrochemical energy storage. Reduction in mass, increase in energy, and increase in power can benefit both of these areas dramatically. Supercapacitors are currently under consideration for use in...
Briefs: Electronics & Computers
High-Energy-Density Solid-State Li-Ion Battery with Enhanced Safety
High-energy-density and safe rechargeable batteries are required for NASA’s future exploration missions. Lithium-ion (Li-ion) batteries are attractive energy storage systems due to their relatively high energy and power densities. However, the unfavorable side reactions...
Who's Who: Aerospace
Jim Heidmann, Project Manager for NASA’s Advanced Air Transport Technology Project, and Jason Welstead, Aerospace Engineer
Jim Heidmann of Glenn Research Center (Cleveland, OH) and Jason Welstead of Langley Research Center (Hampton, VA) have led NASA efforts to develop all-electric and hybrid-electric designs for large passenger aircraft....
Briefs: Materials
Lightweight, Flexible, Energy-Manageable Polymer Nanocomposites
Solar energy has attracted keen attention because it is a unique, clean, and sustainable energy resource. It is also widely utilized as a power source in space exploration. A lightweight, durable, deployable, and highly efficient all polymer-based solar power panel was developed...
Briefs: Electronics & Computers
Designing automotive electronics presents numerous technical challenges, including the need to protect against electrical hazards. The three major sources of electrical hazards...
Briefs: Electronics & Computers
Dual-Leadframe Transient Liquid Phase Bonded Power Semiconductor Module Assembly and Bonding Process
A high-temperature-capable widebandgap semiconductor power module package, coupled with a new high-temperature- capable bonding process...
Articles: Automotive
SAE World Congress Preview “Achieving Efficiency”
The 2013 SAE World Congress and Exhibition, taking place April 16-18 at Cobo Center in Detroit, represents an unparalleled opportunity to explore new technology through both technical sessions and the Innovators Only Exhibition. This year’s Host Company is Chrysler, and ZF will serve as...
Articles: Energy
One initiative at Glenn Research Center, the Hybrid Power Management (HPM) program, focused on joining new and mature technologies for optimal power systems applications in space and on Earth, with...
Briefs: Materials
An Integrated, Layered-Spinel Composite Cathode for Energy Storage Applications
At low operating temperatures, commercially available electrode materials for lithium-ion batteries do not fully meet the energy and power requirements for NASA’s exploration activities. The composite cathode under development is projected to provide the required...
Briefs: Software
If carmakers could reduce the number, size, and weight of the components in there, better fuel economy would result. A case in point is the design and...
Briefs: Materials
Electrochemical Ultracapacitors Using Graphitic Nanostacks
Electrochemical ultracapacitors (ECs) have been developed using graphitic nanostacks as the electrode material. The advantages of this technology will be the reduction of device size due to superior power densities and relative powers compared to traditional activated carbon electrodes....
Briefs: Materials
Li-Ion Cells Employing Electrolytes With Methyl Propionate and Ethyl Butyrate Co-Solvents
Future NASA missions aimed at exploring Mars and the outer planets require rechargeable batteries that can operate at low temperatures to satisfy the requirements of such applications as landers, rovers, and penetrators. A number of terrestrial...
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