Battelle Memorial Institute

Ruiguo Cao

Wu Xu

Ji-Guang Zhang

Jiguang Zhang

Wesley A Henderson

Kuber Mishra

Hongfa Xiang

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 &#x2265;2.5 M or a solvent-sodium salt mole ratio &#x2264;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&#x2265;80% within 10-30 charge-discharge cycles and maintain a CE&#x2265;80% for at least 100 charge-discharge cycles. In certain embodiments, the battery is an anode-free battery in the as-assembled initial state.

Electrolyte for high efficiency cycling of sodium metal and rechargeable sodium-based batteries comprising the electrolyte

Solid electrolyte interphase film-suppression additives

Growing community of inventors

Richland, WA, United States of America

Ruiguo Cao