The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 2019
Filed:
Sep. 29, 2015
Battelle Memorial Institute, Richland, WA (US);
Ji-Guang Zhang, Richland, WA (US);
Ruiguo Cao, Richland, WA (US);
Wesley A. Henderson, Richland, WA (US);
Kuber Mishra, Columbia, SC (US);
Wu Xu, Richland, WA (US);
Battelle Memorial Institute, Richland, WA (US);
Abstract
Embodiments of a non-aqueous electrolyte for a rechargeable sodium (Na)-based battery comprise a sodium salt and a nonaqueous solvent, the electrolyte having a sodium salt concentration ≥2.5 M or a solvent-sodium salt mole ratio ≤4:1. Na-based rechargeable batteries including the electrolyte exhibit both high cycling stability and high coulombic efficiency (CE). Some embodiments of the disclosed batteries attain a CE≥80% within 10-30 charge-discharge cycles and maintain a CE≥80% for at least 100 charge-discharge cycles. In certain embodiments, the battery is an anode-free battery in the as-assembled initial state.