ORNL and Solid Power Sign Lithium-Sulfur Agreement

Dean Sigler Batteries, Electric Powerplants, Sustainable Aviation Leave a Comment

Solid-state batteries are becoming the next big thing in energy storage, with the promise of low volatility, high energy density and lower-cost manufacturing.  With academia, industry and government collaborating on the next wave of development, we may see progress in this realm. Recently, the Department of Energy’s Oak Ridge National Laboratory and Solid Power Inc. of Louisville, Colo., signed an exclusive agreement licensing lithium-sulfur materials for next-generation batteries. A team of current and former ORNL researchers including Chengdu Liang, Nancy Dudney, Adam Rondinone, Jong Keum, Jane Howe, Wujun Fu, Ezhiylmurugan Rangasamy, Zhan Lin and Zengcai Liu developed the technology.  This included designing and testing an all-solid lithium-sulfur battery “with approximately four times the energy density of conventional lithium-ion technologies.”  It featured a …

“Double-Duty” Electrolyte Extends Battery Longevity

Dean Sigler Electric Powerplants, Sustainable Aviation Leave a Comment

Morgan McCorkle at the Department of Energy’s Oak Ridge National Laboratory in Tennessee reports that researchers there have developed a lithium-carbon fluoride battery with a thiophosphate electrolyte that generates 26 percent higher capacity than its theoretical maximum if all the components acted independently.  This serendipitous outcome causes researcher Chengdu Liang to say, “This bi-functional electrolyte revolutionizes the concept of conventional batteries and opens a new avenue for the design of batteries with unprecedented energy density.” We’ve become accustomed to thinking that a battery’s “three main components – the positive cathode, negative anode, and ion-conducting electrolyte – can play only one role in the device.” ORNL’s battery has a specially-developed solid electrolyte that functions as an ion conductor, and also serves as …