Long cycle-life secondary lithium cells utilizing tetrahydrofuran

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

DOI:https://doi.org/10.1149/1.2116049· OSTI ID:6111453

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

Abraham and Goldman (1983) have found that a use of tetrahydrofuran(THF)/LiAsF6 electrolyte solution in ambient temperature rechargeable lithium cells is highly desirable. Unsaturated organic additives such as 2, methyl-furan (2Me-F) were found to enable high efficiency Li cycling in THF/LiAsF6. The employment of the high rate, low temperature mixed solution, 50:50 THF:2Me-THF/LiAsF6(1.5M), in 5 A-hr Li/TiS2 cells made it possible to achieve, for the first time, more than 200 cycles of 60 percent depth-of-discharge (d.o.d.). The Li anode cycling efficiency in these 5 A-hr cells exceeded 97 percent. It is now believed that this mixed electrolyte is significantly better than 2Me-THF/LiAsF6 for use in ambient temperature secondary Li cells. The relevant data which form the basis for this conclusion are presented. 12 references.

• Research Organization: EIC Labs., Inc., Norwood, MA
• OSTI ID: 6111453
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 131; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ADDITIVES
ALKALI METAL COMPOUNDS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
FURANS
HETEROCYCLIC COMPOUNDS
LITHIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PERFORMANCE TESTING
SERVICE LIFE
TESTING
TETRAHYDROFURAN