Sulfamides and glymes as aprotic solvents for lithium batteries

Journal Article · Thu Oct 01 04:00:00 EDT 1998 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1838834· OSTI ID:659181

Choquette, Y ^[1]; Brisard, G; Parent, M ^[2]; Brouillette, D; Perron, G; Desnoyers, J E ^[3]; Armand, M; Gravel, D; Slougui, N ^[4]

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1. IREQ, Varennes, Quebec (Canada)
2. Univ. de Sherbrooke, Quebec (Canada). Dept. of Chemistry
3. INRS-Energie et Materiaux, Varennes, Quebec (Canada)
4. Univ. de Montreal, Quebec (Canada). Dept. of Chemistry

In view of the high reactivity of the lithium metal, lithium batteries must operate in an aprotic environment, which can either be a conducting polymer, a liquid solvent, or a mixture of them. Two families of aprotic liquids were considered as solvents for lithium bis(trifluoromethylsulfone)imide (LiCF{sub 3}SO{sub 2}NSO{sub 2}CF{sub 3} or LiTFSI). The first one is the substituted sulfamides, R{sub 1}R{sub 2}NSO{sub 2}NR{sub 3}R{sub 4}, where the R groups are either methyl, ethyl, or methoxyethyl (CH{sub 2}CH{sub 2}OCH{sub 3}), and the second one is the glymes, CH{sub 3}O(CH{sub 2}CH{sub 2}O){sub n}CH{sub 3}, for n up to 10. The phase diagrams, potential windows, conductivities, and the lithium interfacial resistances of the solutions were investigated, often as a function of temperature. The potential use of these solvents for different types of batteries is discussed.

• Sponsoring Organization: USDOE
• OSTI ID: 659181
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 10 Vol. 145; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
AMIDES
ELECTRICAL PROPERTIES
LITHIUM
METAL-NONMETAL BATTERIES
ORGANIC OXYGEN COMPOUNDS
ORGANIC SOLVENTS
PHASE DIAGRAMS
TEMPERATURE DEPENDENCE