Long cycle-life secondary lithium cells utilizing tetrahydrofuran

Journal Article · Sat Sep 01 04:00:00 EDT 1984 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2116049· OSTI ID:6314450

Abraham, K M; Foos, J S; Goldman, J L

The tetrahydrofuran (THF)/LiAsF/sub 6/ electrolyte solution, except for its high reactivity with Li, is highly desirable for use in ambient temperature rechargeable Li cells. In a recent patent application, the authors disclosed that the use of unsaturated organic additives such as 2,methyl-furan (2Me-F) enables high efficiency Li cycling in THF/LiAsF/sub 6/. A most important consequence of this discovery has turned out to be the utility of the high rate, low temperature mixed solution, 50:50 THF:2Me-THF/LiAsF/sub 6/ (1.5M) (2,4,5), in 5 A-hr Li/TiS/sub 2/ cells to achieve, for the first time, more than 200 cycles of 60% depth-of-discharge (d.o.d). The Li anode cycling efficiency in these 5 A-hr cells exceeded 97%. They now believe that this mixed electrolyte is significantly better than 2Me-THF/LiAsF/sub 6/ for use in ambient temperature secondary Li cells. The relevant data are reported in this communication.

• Research Organization: EIC Laboratories, Incorporated, Norwood, Massachusetts
• OSTI ID: 6314450
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 131:9; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
ALKALI METAL COMPOUNDS
ARSENIC COMPOUNDS
ARSENIC FLUORIDES
EFFICIENCY
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
FLUORIDES
FLUORINE COMPOUNDS
FURANS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
LIFETIME
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
METAL-NONMETAL BATTERIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PERFORMANCE
TETRAHYDROFURAN