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

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

Inventors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1493293
Patent Number(s):
10,170,795
Application Number:
14/869,647
Assignee:
Battelle Memorial Institute (Richland, WA)
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Sep 29
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Zhang, Ji-Guang, Cao, Ruiguo, Henderson, Wesley A., Mishra, Kuber, and Xu, Wu. Electrolyte for high efficiency cycling of sodium metal and rechargeable sodium-based batteries comprising the electrolyte. United States: N. p., 2019. Web.
Zhang, Ji-Guang, Cao, Ruiguo, Henderson, Wesley A., Mishra, Kuber, & Xu, Wu. Electrolyte for high efficiency cycling of sodium metal and rechargeable sodium-based batteries comprising the electrolyte. United States.
Zhang, Ji-Guang, Cao, Ruiguo, Henderson, Wesley A., Mishra, Kuber, and Xu, Wu. Tue . "Electrolyte for high efficiency cycling of sodium metal and rechargeable sodium-based batteries comprising the electrolyte". United States. https://www.osti.gov/servlets/purl/1493293.
@article{osti_1493293,
title = {Electrolyte for high efficiency cycling of sodium metal and rechargeable sodium-based batteries comprising the electrolyte},
author = {Zhang, Ji-Guang and Cao, Ruiguo and Henderson, Wesley A. and Mishra, Kuber and Xu, Wu},
abstractNote = {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 .gtoreq.2.5 M or a solvent-sodium salt mole ratio .ltoreq.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.gtoreq.80% within 10-30 charge-discharge cycles and maintain a CE.gtoreq.80% for at least 100 charge-discharge cycles. In certain embodiments, the battery is an anode-free battery in the as-assembled initial state.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}

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