Metal sulfide for battery applications

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:6796306

Guidotti, R A

A number of metal sulfides can be used in batteries as a cathode (reducible) material as part of an electrochemical couple to provide energy. There are a number of physical and chemical characteristics that can be evaluated for screening potential candidates for use in batteries. These include: cell potential vs. Li, thermal and chemical stability, electrical conductivity, allotropic form (phase), reaction kinetics during discharge, type of discharge mechanism, and material rechargeability. These are reviewed in general, with emphasis on sulfides of copper, iron, and molybdenum which are currently being used as cathodes in Li and Li-alloy batteries. The presence of impurities can adversely impact performance when naturally occurring sulfide minerals are used for battery applications. Sandia National Laboratories uses natural pyrite (FeS2) for its high-temperature, thermally activated Li(Si)/FeS2 batteries. The purification and processing procedures for the FeS2 involves both chemical and physical methods. Flotation was found to yield comparable results as HF leaching for removal of silica, but without the negative health and environmental concerns associated with this technique. 11 refs., 5 figs., 6 tabs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6796306
• Report Number(s): SAND-88-2873C; CONF-890209-1; ON: DE89005923
• Resource Relation: Conference: 92. national western mining conference and exhibition, Denver, CO, USA, 8 Feb 1989
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
CATHODES
DESIGN
ELECTRIC BATTERIES
SILICA
REMOVAL
COPPER SULFIDES
IRON SULFIDES
MOLYBDENUM SULFIDES
NUMERICAL DATA
PERFORMANCE
SULFIDES
CHALCOGENIDES
COPPER COMPOUNDS
DATA
ELECTROCHEMICAL CELLS
ELECTRODES
INFORMATION
IRON COMPOUNDS
MINERALS
MOLYBDENUM COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
250900* - Energy Storage- Batteries