US 11,811,020 B2
Electrolytes with ultrahigh closo-borate concentrations
Rana Mohtadi, Northville, MI (US); Oscar Tutusaus, Ann Arbor, MI (US); and Michael John Counihan, Urbana, IL (US)
Assigned to Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed on Feb. 2, 2021, as Appl. No. 17/165,230.
Prior Publication US 2022/0246980 A1, Aug. 4, 2022
Int. Cl. H01M 10/056 (2010.01); H01M 10/0562 (2010.01); H01M 10/0525 (2010.01); C07F 5/02 (2006.01); H01M 4/38 (2006.01)
CPC H01M 10/0562 (2013.01) [C07F 5/027 (2013.01); H01M 4/382 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0065 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A solid-state electrolyte comprising:
a combined salt comprising:
an ultrahigh concentration of an alkali metal or alkali earth metal closo-borate salt in a liquid mixture of the alkali metal or alkali earth metal closo-borate salt and at least one soft ionic solid-state electrolyte (SISE), the alkali metal or alkali earth metal closo-borate salt comprising lithium, sodium, potassium, or magnesium paired with at least one closo-borate anion, the at least one SISE comprising at least one organic cation coupled with the at least one closo-borate anion;
a conductivity, at room temperature, exceeding a conductivity of the alkali or alkali earth metal closo-borate salt and a conductivity of a saturated solution of the alkali or alkali earth metal closo-borate salt in the SISE.