Mixed ether electrolytes for secondary lithium batteries with improved low temperature performance

Journal Article · Tue Apr 01 04:00:00 EST 1986 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2108650· OSTI ID:5643049

Abraham, K M; Pasquariello, D M; Martin, F J

Tetrahydrofuran (THF): 2-methyl-tetrahydrofuran (2Me-THF)/LiAsF/sub 6/ mixed solutions, despite their lower conductivity, have allowed significantly better low temperature performance in Li/TiS/sub 2/ cells than have THF/LiAsF/sub 6/, /sup 13/C NMR data suggest that this may be related to the structurally disordered Li/sup +/-solvates that exist in the mixed ether solutions. High cycling efficiencies for the Li electrode in THF:2Me-THF/LiAsF/sub 6/ solutions have been achieved by the use of 2Me-F as an additive. A 5 Ah capacity Li/TiS/sub 2/ cell has been cycled more than 100 times at 100, depth-of-discharge, with the cell capacity remaining at over 3 Ah at the 100th cycle.

• Research Organization: EIC Labs., Inc., Norwood, MA 02062
• OSTI ID: 5643049
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 133:4; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
250903 -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ADDITIVES
ALKALI METAL COMPOUNDS
ARSENIC COMPOUNDS
ARSENIC FLUORIDES
BATTERY CHARGING
CAPACITY
CARBON 13
CARBON ISOTOPES
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ETHERS
EVEN-ODD NUCLEI
FLUORIDES
FLUORINE COMPOUNDS
FURANS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
ISOTOPES
LIGHT NUCLEI
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
LITHIUM-SULFUR BATTERIES
METAL-NONMETAL BATTERIES
MTHF
NMR SPECTRA
NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PERFORMANCE TESTING
PHYSICAL PROPERTIES
SPECTRA
STABLE ISOTOPES
TEMPERATURE EFFECTS
TESTING
TETRAHYDROFURAN