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High-Energy Rechargeable Metallic Lithium Battery at -70 °C Enabled by a Cosolvent Electrolyte

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [3];  [3];  [3];  [3];  [3];  [2];  [4]
  1. Fudan Univ., Shanghai (China); www.gm.com
  2. Michigan State Univ., East Lansing, MI (United States)
  3. Fudan Univ., Shanghai (China)
  4. Fudan Univ., Shanghai (China); Zhejiang Normal Univ., Jinhua (China)
Lithium metal is an ideal anode for high-energy rechargeable batteries at low temperature, yet hindered by the electrochemical instability with the electrolyte. Concentrated electrolytes can improve the oxidative/reductive stability, but encounter high viscosity. Herein, a co-solvent formulation was designed to resolve the dilemma. By adding electrochemically “inert” dichloromethane (DCM) as a diluent in concentrated ethyl acetate (EA)-based electrolyte, the co-solvent electrolyte demonstrated a high ionic conductivity (0.6 mS cm–1), low viscosity (0.35 Pa s), and wide range of potential window (0–4.85 V) at –70 °C. Spectral characterizations and simulations show these unique properties are associated with the co-solvation structure, in which high-concentration clusters of salt in the EA solvent were surrounded by mobile DCM diluent. Altogether, this novel electrolyte enabled rechargeable metallic Li battery with high energy (178 Wh kg–1) and power (2877 W kg–1) at –70 °C.
Research Organization:
General Motors, Detroit, MI (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office. Batteries for Advanced Transportation Technologies (BATT) Program
Grant/Contract Number:
EE0007787
OSTI ID:
1847205
Alternate ID(s):
OSTI ID: 1614062
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 17 Vol. 58; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (18)

Designing Low Impedance Interface Films Simultaneously on Anode and Cathode for High Energy Batteries journal May 2018
Low-Viscosity γ-Butyrolactone-Based Concentrated Electrolyte Solutions for LiNi 0.5 Mn 1.5 O 4 Positive Electrodes in Lithium-Ion Batteries journal June 2017
Raman spectra of liquid mixtures (cyclohexanol and ethyl acetate) journal June 1963
Organic Batteries Operated at −70°C journal May 2018
High-Efficiency Lithium Metal Batteries with Fire-Retardant Electrolytes journal August 2018
Wide-Temperature Electrolytes for Lithium-Ion Batteries journal May 2017
Electrolytes and Interphases in Li-Ion Batteries and Beyond journal October 2014
Oxidative-Stability Enhancement and Charge Transport Mechanism in Glyme–Lithium Salt Equimolar Complexes journal August 2011
Li + Solvation in Pure, Binary, and Ternary Mixtures of Organic Carbonate Electrolytes journal February 2015
Lithium-ion battery structure that self-heats at low temperatures journal January 2016
High rate and stable cycling of lithium metal anode journal February 2015
Hydrate-melt electrolytes for high-energy-density aqueous batteries journal August 2016
Fire-extinguishing organic electrolytes for safe batteries journal November 2017
Concentrated electrolytes: decrypting electrolyte properties and reassessing Al corrosion mechanisms journal January 2014
"Water-in-salt" electrolyte enables high-voltage aqueous lithium-ion chemistries journal November 2015
Liquefied gas electrolytes for electrochemical energy storage devices journal June 2017
Lithium-Ion Electrolytes Containing Ester Cosolvents for Improved Low Temperature Performance journal January 2010
The Effect of Additives upon the Performance of MCMB/LiNi x Co 1−x O 2 Li-Ion Cells Containing Methyl Butyrate-Based Wide Operating Temperature Range Electrolytes journal January 2012

Cited By (4)

Synergistic Effects of Salt Concentration and Working Temperature towards Dendrite-Free Lithium Deposition journal October 2019
Exploiting Mechanistic Solvation Kinetics for Dual‐Graphite Batteries with High Power Output at Extremely Low Temperature journal November 2019
Exploiting Mechanistic Solvation Kinetics for Dual‐Graphite Batteries with High Power Output at Extremely Low Temperature journal December 2019
Sustainable Battery Materials from Biomass journal April 2020

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