Insoluble sulfide positive electrodes for organic electrolyte lithium secondary batteries

Journal Article · Tue Dec 01 04:00:00 EST 1981 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2127280· OSTI ID:5192689

Dampier, F W

The behavior of CuS, NiS, SiS/sub 2/, MnS/sub 2/, and FeS as positive electrodes for rechargeable Li cells was investigated using a 1M LiAsF/sub 6//THF electrolyte. Of these sulfides CuS gave the best performance delivering 1.6 and 0.98 eq/mol of CuS at 1 mA/cm/sup 2/ after 4 and 20 cycles, respectively. These capacities translate into specific energies of 348 and 211 W-hr/lb based on the weight of CuS and actual cell voltages. It was found that both NiS and SiS/sub 2/ can be cycled for 40 cycles but the capacities were not adequate for battery applications. Deterioration of the Li electrode due to reaction of the Li with the electrolyte and reduction of the electrolyte on the CuS electrode below approximately 1.5V appear to be the main factors limiting the cycle life of the Li-CuS cell. 29 refs.

• Research Organization: EIC Corp, Newton, Mass, USA
• OSTI ID: 5192689
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 128:12; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
CHALCOGENIDES
COPPER COMPOUNDS
COPPER SULFIDES
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
IRON COMPOUNDS
IRON SULFIDES
LITHIUM-SULFUR BATTERIES
MANGANESE COMPOUNDS
MANGANESE SULFIDES
METAL-NONMETAL BATTERIES
NICKEL COMPOUNDS
NICKEL SULFIDES
SILICON COMPOUNDS
SILICON SULFIDES
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS