DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electrolyte salts for rechargeable magnesium-ion batteries

Abstract

Magnesium salts suitable for use in an electrolyte for a magnesium ion electrochemical cell are described herein. The salts are magnesium tetra(perfluoroalkoxy)metalates, optionally solvated with up to seven ether molecules coordinated to the magnesium ion thereof. In one embodiment, the salt has the empirical formula: Mg(Z)n2+[M(OCR3)4]2 (Formula (I)) wherein Z is an ether; n is 0 to about 7; M is Al or B; and each R independently is a perfluoroalkyl group (e.g., C1 to C10 perfluoroalkyl). The magnesium salts of Formula (I) are suitable for use as electrolyte salts for magnesium ion batteries (e.g., 5 V class magnesium batteries) and exhibit a wide redox window that is particularly compatible with magnesium anode. The salts are relatively cost effective to prepare by methods described herein, which are conveniently scalable to levels suitable for commercial production.

Inventors:
;
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771739
Patent Number(s):
10868335
Application Number:
16/133,278
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 09/17/2018
Country of Publication:
United States
Language:
English

Citation Formats

Lau, Ka-Cheong, and Liao, Chen. Electrolyte salts for rechargeable magnesium-ion batteries. United States: N. p., 2020. Web.
Lau, Ka-Cheong, & Liao, Chen. Electrolyte salts for rechargeable magnesium-ion batteries. United States.
Lau, Ka-Cheong, and Liao, Chen. Tue . "Electrolyte salts for rechargeable magnesium-ion batteries". United States. https://www.osti.gov/servlets/purl/1771739.
@article{osti_1771739,
title = {Electrolyte salts for rechargeable magnesium-ion batteries},
author = {Lau, Ka-Cheong and Liao, Chen},
abstractNote = {Magnesium salts suitable for use in an electrolyte for a magnesium ion electrochemical cell are described herein. The salts are magnesium tetra(perfluoroalkoxy)metalates, optionally solvated with up to seven ether molecules coordinated to the magnesium ion thereof. In one embodiment, the salt has the empirical formula: Mg(Z)n2+[M(OCR3)4−]2 (Formula (I)) wherein Z is an ether; n is 0 to about 7; M is Al or B; and each R independently is a perfluoroalkyl group (e.g., C1 to C10 perfluoroalkyl). The magnesium salts of Formula (I) are suitable for use as electrolyte salts for magnesium ion batteries (e.g., 5 V class magnesium batteries) and exhibit a wide redox window that is particularly compatible with magnesium anode. The salts are relatively cost effective to prepare by methods described herein, which are conveniently scalable to levels suitable for commercial production.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {12}
}

Works referenced in this record:

Cocatalysts for Metal-Catalyzed Olefin Polymerization: Activators, Activation Processes, and Structure−Activity Relationships
journal, April 2000


Odyssey of Multivalent Cathode Materials: Open Questions and Future Challenges
journal, February 2017


On the Mechanisms of Reversible Magnesium Deposition Processes
journal, January 2001


Late-Metal Catalysts for Ethylene Homo- and Copolymerization
journal, April 2000


B(SCN) 4 : A New Weakly Coordinating Anion in the Tetracyanoborate Family
journal, December 2017


Electronic structures and electrochemical properties of LiPF6−n(CF3)n
journal, July 2001


Development of Catalysts and Ligands for Enantioselective Gold Catalysis
journal, November 2013


Hexafluorophosphate-Based Solutions for Mg Batteries and the Importance of Chlorides
journal, July 2017


On the electrochemical behavior of magnesium electrodes in polar aprotic electrolyte solutions
journal, May 1999


An Efficient Halogen-Free Electrolyte for Use in Rechargeable Magnesium Batteries
journal, May 2015


A Fusible Orthoborate Lithium Salt with High Conductivity in Solutions
journal, January 1999


A New Approach to Non-Coordinating Anions: Lewis Acid Enhancement of Porphyrin Metal Centers in a Zwitterionic Metal–Organic Framework
journal, August 2016


Group 4 ansa- Cyclopentadienyl-Amido Catalysts for Olefin Polymerization
journal, October 1998


Mapping the Challenges of Magnesium Battery
journal, April 2016


Gold(I)-Catalyzed Activation of Alkynes for the Construction of Molecular Complexity
journal, April 2015


Electrochemical Properties of Quaternary Ammonium Salts for Electrochemical Capacitors
journal, January 1997


Structural Analysis of Electrolyte Solutions for Rechargeable Mg Batteries by Stereoscopic Means and DFT Calculations
journal, April 2011


Noncoordinating Anions—Fact or Fiction? A Survey of Likely Candidates
journal, April 2004


Electrolyte Solutions for Rechargeable Magnesium Batteries Based on Organomagnesium Chloroaluminate Complexes
journal, January 2002


Enhanced Stability of the Carba- closo -dodecaborate Anion for High-Voltage Battery Electrolytes through Rational Design
journal, July 2018


A new class of non-corrosive, highly efficient electrolytes for rechargeable magnesium batteries
journal, January 2017


Magnesium Borohydride: From Hydrogen Storage to Magnesium Battery
journal, August 2012


Ionic Liquids with Weakly Coordinating [M III (OR F ) 4 ] Anions
journal, August 2015


The Coupling between Stability and Ion Pair Formation in Magnesium Electrolytes from First-Principles Quantum Mechanics and Classical Molecular Dynamics
journal, February 2015


A Fluorinated Alkoxyaluminate Electrolyte for Magnesium-Ion Batteries
journal, November 2016


Fervent Hype behind Magnesium Batteries: An Open Call to Synthetic Chemists-Electrolytes and Cathodes Needed
journal, August 2017


Structure and compatibility of a magnesium electrolyte with a sulphur cathode
journal, August 2011


Mg rechargeable batteries: an on-going challenge
journal, January 2013


The unexpected discovery of the Mg(HMDS) 2 /MgCl 2 complex as a magnesium electrolyte for rechargeable magnesium batteries
journal, January 2015


Electrolyte roadblocks to a magnesium rechargeable battery
journal, January 2012


Dehydration of (Perfluoroalkyl)tetramethylcyclopentenols
journal, May 2011


Discrete Cationic Complexes for Ring-Opening Polymerization Catalysis of Cyclic Esters and Epoxides
journal, April 2015


Metal complexes of weakly coordinating anions. Precursors of strong cationic organometallic Lewis acids
journal, November 1988


Prototype systems for rechargeable magnesium batteries
journal, October 2000


Weakly Coordinating Anions, and the Exceptional Conductivity of Their Nonaqueous Solutions
journal, January 2001


?Non-Coordinating? Anions: Underestimated Ligands
journal, September 1992


Electrolyte Solutions with a Wide Electrochemical Window for Rechargeable Magnesium Batteries
journal, January 2008


Silylium ions in catalysis
journal, January 2010


Corrosion of magnesium electrolytes: chlorides – the culprit
journal, December 2012


Mg(PF 6 ) 2 -Based Electrolyte Systems: Understanding Electrolyte–Electrode Interactions for the Development of Mg-Ion Batteries
journal, July 2016


Carboranes:  A New Class of Weakly Coordinating Anions for Strong Electrophiles, Oxidants, and Superacids
journal, March 1998


Advances in Non-Metallocene Olefin Polymerization Catalysis
journal, January 2003


Univalent Gallium Salts of Weakly Coordinating Anions: Effective Initiators/Catalysts for the Synthesis of Highly Reactive Polyisobutylene
journal, October 2013


Li-ion battery materials: present and future
journal, June 2015


“Tamed” Silylium Ions: Versatile in Catalysis
journal, March 2012


Mg Desolvation and Intercalation Mechanism at the Mo 6 S 8 Chevrel Phase Surface
journal, August 2015


Synthesis, Structures, and Reactivity of Weakly Coordinating Anions with Delocalized Borate Structure:  The Assessment of Anion Effects in Metallocene Polymerization Catalysts
journal, December 2000


Study on electrochemically deposited Mg metal
journal, August 2011