Title: Low concentration electrolyte: A new approach for achieving high performance lithium batteries

Journal Article · · eScience

The conventional perspective suggests that low-concentration electrolytes (LCEs) face challenges in achieving stable charge/discharge properties due to the decreased ionic conductivity resulting from lower Li+ concentrations. However, the successful utilization of LCEs in lithium/sodium-ion batteries has brought them into the forefront of consideration for high performance battery systems. It is possible to achieve improved interface stability and ion transport performance for LCEs through adjusting electrolyte components, such as salts, solvents, and additives. This review provides timely update of the recent research progress, design strategies and remaining challenges of LCEs to answer several questions: i) What is the key factor for designing LCEs? ii) How to balance the low salt concentration and good ionic conductivity? iii) What is the interphasial mechanism of anode/cathode in LCEs? Firstly, the development of LCEs is discussed with typical examples. Subsequently, effectiveness of solvents on overall performances of LCEs is comprehensively summarized in detail. Finally, the challenges and possible research direction of LCEs are discussed. This review provides critical guidance for designing novel electrolytes for secondary batteries.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
National Natural Science Foundation of China (NSFC); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)
Grant/Contract Number:
SC0012704
OSTI ID:
2503911
Report Number(s):
BNL-226482-2025-JAAM
Journal Information:
eScience, Journal Name: eScience Journal Issue: 6 Vol. 4; ISSN 2667-1417
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (62)

Fluorobenzene, A Low‐Density, Economical, and Bifunctional Hydrocarbon Cosolvent for Practical Lithium Metal Batteries journal September 2020
Low Concentration Electrolyte Enabling Cryogenic Lithium–Sulfur Batteries journal August 2022
A Lithium-Sulfur Battery using a 2D Current Collector Architecture with a Large-Sized Sulfur Host Operated under High Areal Loading and Low E/S Ratio journal October 2018
Research Progress towards Understanding the Unique Interfaces between Concentrated Electrolytes and Electrodes for Energy Storage Applications journal March 2017
Designing Low Impedance Interface Films Simultaneously on Anode and Cathode for High Energy Batteries journal May 2018
High‐Fluorinated Electrolytes for Li–S Batteries journal February 2019
A Multifunctional Dual‐Salt Localized High‐Concentration Electrolyte for Fast Dynamic High‐Voltage Lithium Battery in Wide Temperature Range journal August 2021
Low Concentration Electrolyte Enabling Anti‐Clustering of Lithium Polysulfides and 3D‐Growth of Li2S for Low Temperature Li–S Conversion Chemistry journal October 2023
A Low‐Concentration Electrolyte for High‐Voltage Lithium‐Metal Batteries: Fluorinated Solvation Shell and Low Salt Concentration Effect journal November 2022
The Radical Pathway Based on a Lithium‐Metal‐Compatible High‐Dielectric Electrolyte for Lithium–Sulfur Batteries journal December 2018
High‐Energy Rechargeable Metallic Lithium Battery at −70 °C Enabled by a Cosolvent Electrolyte journal March 2019
Formulation of Blended‐Lithium‐Salt Electrolytes for Lithium Batteries journal December 2019
Regulating Interfacial Chemistry in Lithium‐Ion Batteries by a Weakly Solvating Electrolyte** journal November 2020
Optimize Lithium Deposition at Low Temperature by Weakly Solvating Power Solvent journal August 2022
Simultaneous Stabilization of the Solid/Cathode Electrolyte Interface in Lithium Metal Batteries by a New Weakly Solvating Electrolyte journal April 2021
Design of a LiF‐Rich Solid Electrolyte Interphase Layer through Highly Concentrated LiFSI–THF Electrolyte for Stable Lithium Metal Batteries journal October 2021
Lithium Metal Anode Materials Design: Interphase and Host journal October 2019
Lithium difluoro(bisoxalato) phosphate-based multi-salt low concentration electrolytes for wide-temperature lithium metal batteries: Experiments and theoretical calculations journal October 2022
Electrochemical behavior of current collectors for lithium batteries in non-aqueous alkyl carbonate solution and surface analysis by ToF-SIMS journal December 2009
Concentrated electrolytes based on dual salts of LiFSI and LiODFB for lithium-metal battery journal November 2018
Designing safer lithium-based batteries with nonflammable electrolytes: A review journal December 2021
Electrolyte solvation chemistry to construct an anion-tuned interphase for stable high-temperature lithium metal batteries journal August 2023
Electrolyte design principles for low-temperature lithium-ion batteries journal December 2023
Low concentration electrolyte with non-solvating cosolvent enabling high-voltage lithium metal batteries journal January 2022
Recent progress in fluorinated electrolytes for improving the performance of Li–S batteries journal February 2020
Lithium nitrate regulated carbonate electrolytes for practical Li-metal batteries: Mechanisms, principles and strategies journal February 2023
Thermal stability of LiPF6 salt and Li-ion battery electrolytes containing LiPF6 journal October 2006
Liquid electrolyte lithium/sulfur battery: Fundamental chemistry, problems, and solutions journal June 2013
Recent development of ionic liquid-based electrolytes in lithium-ion batteries journal September 2022
A lightweight localized high-concentration ether electrolyte for high-voltage Li-Ion and Li-metal batteries journal June 2022
Fluoroethylene Carbonate and Vinylene Carbonate Reduction: Understanding Lithium-Ion Battery Electrolyte Additives and Solid Electrolyte Interphase Formation journal November 2016
Boosting High-Performance in Lithium–Sulfur Batteries via Dilute Electrolyte journal May 2020
Dual-Salt Electrolytes to Effectively Reduce Impedance Rise of High-Nickel Lithium-Ion Batteries journal August 2021
Using Mixed Salt Electrolytes to Stabilize Silicon Anodes for Lithium-Ion Batteries via in Situ Formation of Li–M–Si Ternaries (M = Mg, Zn, Al, Ca) journal July 2019
Ultralow-Concentration Electrolyte for Na-Ion Batteries journal March 2020
Challenges for Rechargeable Li Batteries journal February 2010
Nonaqueous Liquid Electrolytes for Lithium-Based Rechargeable Batteries journal October 2004
Electrolytes and Interphases in Li-Ion Batteries and Beyond journal October 2014
Rechargeable Lithium–Sulfur Batteries journal July 2014
Theoretical Studies To Understand Surface Chemistry on Carbon Anodes for Lithium-Ion Batteries:  Reduction Mechanisms of Ethylene Carbonate journal November 2001
Lithium Ion Battery Graphite Solid Electrolyte Interphase Revealed by Microscopy and Spectroscopy journal January 2013
High rate and stable cycling of lithium metal anode journal February 2015
Non-flammable electrolytes with high salt-to-solvent ratios for Li-ion and Li-metal batteries journal July 2018
Rational solvent molecule tuning for high-performance lithium metal battery electrolytes journal January 2022
Strategies for improving the cyclability and thermo-stability of LiMn 2 O 4 -based batteries at elevated temperatures journal January 2015
Bisalt ether electrolytes: a pathway towards lithium metal batteries with Ni-rich cathodes journal January 2019
Design of a LiF-rich solid electrolyte interface layer through salt-additive chemistry for boosting fast-charging phosphorus-based lithium ion battery performance journal January 2020
Insights into the deposition chemistry of Li ions in nonaqueous electrolyte for stable Li anodes journal January 2021
Emerging electrolytes with fluorinated solvents for rechargeable lithium-based batteries journal January 2023
Eco-friendly electrolytes via a robust bond design for high-energy Li metal batteries journal January 2022
A nonflammable low-concentration electrolyte for lithium-ion batteries journal January 2022
Enhanced performances of lithium metal batteries by synergistic effect of low concentration bisalt electrolyte journal January 2022
Effects of fluorinated solvents on electrolyte solvation structures and electrode/electrolyte interphases for lithium metal batteries journal February 2021
Studies of Lithium Intercalation into Carbons Using Nonaqueous Electrochemical Cells journal January 1990
Tuning Low Concentration Electrolytes for High Rate Performance in Lithium-Sulfur Batteries journal June 2020
Mixed Lithium Salts Electrolyte Improves the High-Temperature Performance of Nickel-Rich Based Lithium-Ion Batteries journal July 2020
Minimizing Long-Chain Polysulfide Formation in Li-S Batteries by Using Localized Low Concentration Highly Fluorinated Electrolytes journal September 2021
Review—Superconcentrated Electrolytes for Lithium Batteries journal January 2015
Electrolyte Concentration Effect on Sulfur Utilization of Li-S Batteries journal January 2019
A Systematic Study of Electrolyte Additives in Li[Ni 1/3 Mn 1/3 Co 1/3 ]O 2 (NMC)/Graphite Pouch Cells journal January 2014
Effect of Electrolyte-to-Sulfur Ratio in the Cell on the Li-S Battery Performance journal January 2019
Mechanism of Anodic Dissolution of the Aluminum Current Collector in 1 M LiTFSI EC:DEC 3:7 in Rechargeable Lithium Batteries journal December 2012

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