Fluorination promotes lithium salt dissolution in borate esters for lithium metal batteries
Literature Information
Peiyuan Ma, Ritesh Kumar, Minh Canh Vu, Ke-Hsin Wang, Priyadarshini Mirmira, Chibueze V. Amanchukwu
Lithium metal batteries promise higher energy densities than current lithium-ion batteries but require novel electrolytes to extend their cycle life. Fluorinated solvents help stabilize the solid electrolyte interphase (SEI) with lithium metal, but are believed to have weaker solvation ability compared to their nonfluorinated counterparts and are deemed ‘poorer electrolytes’. In this work, we synthesize tris(2-fluoroethyl) borate (TFEB) as a new fluorinated borate ester solvent and show that TFEB unexpectedly has higher lithium salt solubility than its nonfluorinated counterpart (triethyl borate). Through experiments and simulations, we show that the partially fluorinated –CH2F group acts as the primary coordination site that promotes lithium salt dissolution. TFEB electrolyte has a higher lithium transference number and better rate capability compared to methoxy polyethyleneglycol borate esters reported in the literature. In addition, TFEB supports compact lithium deposition morphology, high lithium metal Coulombic efficiency, and stable cycling of lithium metal/LiFePO4 cells. This work ushers in a new electrolyte design paradigm where partially fluorinated moieties enable salt dissolution and can serve as primary ion coordination sites for next-generation electrolytes.
Related Literature
Critical Review. Methods for the detection of polyether ionophore residues in poultry
DOI: 10.1039/A708698I
You might also like
What precautions should be taken when handling lithium chloride hydrate (1:1:1) (CAS: 16712-20-2)?
When handling lithium chloride hydrate (1:1:1) (CAS: 16712-20-2), it is importan...
Is 4-(4H-1,2,4-Triazol-4-yl)piperidine (CAS: 690261-92-8) safe?
4-(4H-1,2,4-Triazol-4-yl)piperidine is generally considered safe for use in phar...
How should waste containing 1,3-Thiazole-2-carboxamide (CAS: 16733-85-0) be handled?
Waste containing 1,3-Thiazole-2-carboxamide (CAS: 16733-85-0) should be collecte...
What regulatory guidelines apply to 5-(Difluoromethyl)-2-fluorobenzonitrile (CAS: 934175-58-3)?
5-(Difluoromethyl)-2-fluorobenzonitrile (CAS: 934175-58-3) is subject to regulat...
How is Methyl 3-acetamido-2-thiophenecarboxylate (CAS: 22288-79-5) typically synthesized?
Methyl 3-acetamido-2-thiophenecarboxylate can be synthesized by the reaction of ...
What is 4-Isoquinolinecarbonitrile (CAS: 34846-65-6)?
4-Isoquinolinecarbonitrile is a chemical compound with the CAS number 34846-65-6...
How should Methyl 1H-1,2,3-triazole-4-carboxylate (CAS: 877309-59-6) be stored?
Store Methyl 1H-1,2,3-triazole-4-carboxylate (CAS: 877309-59-6) in a cool, dry p...
What regulatory guidelines apply to 6-Bromo[1,3]thiazolo[5,4-b]pyridin-2-amine (CAS: 1160791-13-8)?
6-Bromo[1,3]thiazolo[5,4-b]pyridin-2-amine (CAS: 1160791-13-8) is subject to the...
Is (2S,3S)-2-Ammonio-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoate (CAS: 23651-95-8) safe?
(2S,3S)-2-Ammonio-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoate (CAS: 23651-95-8) ...
What are the physical and chemical properties of 7-bromo-3-methyl-3,4-dihydroquinazolin-4-one (CAS: 1293987-84-4)?
7-Bromo-3-methyl-3,4-dihydroquinazolin-4-one is a solid with a crystalline form....
Source Journal
Journal of Materials Chemistry A

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment













![2-Bromodibenzo[b,d]furan structure 2-Bromodibenzo[b,d]furan structure](https://static.chemtradehub.com/structs/86-/86-76-0-1814.webp)
