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 …

Solid, Man! Electrolytes Go Granular

Dean Sigler Electric Powerplants, Sustainable Aviation Leave a Comment

Most liquid battery electrolytes that conduct ions between anode and cathode also carry with them a flammability problem, especially as chemists try to pack more power into smaller batteries.  Recent fires which have grounded all Boeing 787s in the world highlight the danger. The blog has noted before the dangers of overcharging lithium batteries and especially of leaving even model airplane sized packs lying about unattended during charging. Oak Ridge National Laboratory researchers claim to have demonstrated safety advantages with a nanoporous electrolyte, according to a January 23, 2013 release.  ORNL’s Chengdu Liang says, “To make a safer, lightweight battery, we need the design at the beginning to have safety in mind.  We started with a conventional material that is …