Characterizing the Quality of Ultrasonic Welding Bonds
Director, Grid Storage Launchpad; Strategic Advisor, Energy Storage, Energy and Environment Directorate at Pacific Northwest National Laboratory, Vince Sprenkle
Sankar Krishnamoorthy
Sankar Krishnamoorthy is a chemist at Pacific Northwest National Laboratory
ELECTROLYTES FOR LITHIUM ION AND LITHIUM METAL BATTERIES (iEdison No. 0685901-21-0140)
The high flammability of state-of-the-art liquid electrolytes is a major hazard for the safe operation of lithium (Li) ion batteries (LIBs) and Li metal batteries (LMBs). In this invention, flame retardants (FRs) with distinct solvation abilities were employed as the solvent and diluent of highly safe electrolytes. Because of the difference in the solvating abilities of the two selected flame retardants, the unique solvation structure of localized high concentration electrolytes (LHCEs) is created, which facilitates the formation of effective solid electrolyte interphases (SEIs) on Li and graphite (Gr) electrodes. Consequently, the FR-based LHCEs allow long-term cycling of LIBs and LMBs. Since both the solvating solvent and the diluent are FRs, the FR-based LHCEs exhibit superior flame resistivity to the conventional LiPF6-organocarbonate electrolytes and the previous LHCEs.
Jamie Holladay
Jamie Holladay is a research line manager at Pacific Northwest National Laboratory.
Associate Director, Physical Sciences Division, Kevin Rosso, PhD
Srinivas Katipamula, PhD, Staff Scientist
Jill Brandenberger
Jill Brandenberger is a coastal oceanographer with over 25 years of experience building multidisciplinary teams to translate science to inform national security mission sustainment.