The Department of Energy Office of Science’s national laboratories had 33 technologies recently chosen as 2017 R&D 100 Award Finalists. Of those 33 technologies, several were from Oak Ridge National Laboratory with an advanced energy application.
Each year, R&D Magazine recognizes the most outstanding technology developments with promising commercial potential. The coveted awards – now in their 55th year – are presented annually in recognition of exceptional new products, processes, materials, or software that were developed throughout the world and introduced into the market the previous year.
These esteemed technologies include:
- ACMZ Cast Aluminum Alloys
Lightweight, high-temperature aluminum alloys will play a vital part in improving automotive fuel efficiency in the future. Common commercial alloys soften rapidly at high temperatures, limiting how manufacturers can use them in vehicles. In contrast, alloys that can withstand elevated temperatures are prohibitively expensive and difficult to cast. ACMZ cast aluminum alloys are affordable, lightweight superalloys. They withstand temperatures of almost 100 degrees Celsius, more than current commercial alloys, while providing equivalent mechanical performance. Their properties can meet the varied demands of different automotive engine components. They are also strong enough for manufacturers to use in next-generation high-efficiency combustion engines.
2. SAFIRE – Safe Impact Resistant Electrolyte
Oak Ridge National Laboratory’s Safe Impact Resistant Electrolyte (SAFIRE) improves the safety of plug-in electric vehicle batteries. In typical automotive lithium-ion batteries, the liquid electrolyte (which conducts the electrical current) poses a fire risk in high-speed collisions. To minimize this risk, current plug-in electric vehicles use heavy shielding that reduces their range and efficiency. In contrast, the SAFIRE electrolyte eliminates this risk by using an additive that transforms the liquid electrolyte to a solid upon impact. By blocking contact with electrodes, it prevents short circuiting and a potential fire. Under normal conditions, SAFIRE performs as well as conventional electrolytes. In vehicles, it has the potential to significantly reduce electric vehicle weight and increase travel range.
3. Low Cost Carbon Fiber
Carbon fiber has historically been a high-priced specialty material, which has limited its widespread use. Oak Ridge National Laboratory’s Low Cost Carbon Fiber (LCCF) production method makes high-strength carbon fiber comparable to commercially available material at approximately half the finished product cost. It is also much faster than other methods and reduces energy usage by about 50 percent. Manufacturers can also combine LCCF with plastic materials to produce lightweight composites. This product can potentially make carbon fiber an affordable material for high-volume, cost-sensitive applications such as fuel-efficient automobiles and wind turbine blades.
4. ACE: The Ageless Aluminum Revolution
Lightweight materials such as aluminum alloys can help substantially increase the efficiency of vehicles and airplanes. ACE is a new family of aluminum alloys that exhibits better performance at high temperatures and is easier to cast than previous alloys. By combining aluminum and cerium, or a similar element, with traditional alloying materials, ACE is better able to resist corrosion and be stretched into wires. ACE alloys remain stable at temperatures 300 degrees Celsius higher than leading commercial alloys. They can also withstand 30 percent more tension before they deform. Manufacturers can successfully cast ACE alloys in a wide variety of structural components without energy-intensive heat treatments. Eliminating these treatments could significantly increase production output and reduce manufacturing costs in some cases by almost 60 percent.