Cathode for a secondary electrochemical cell. [Li/LiF--LiCl--KCl/FeS/sub 2/, Li/sub 2/S]

Patent · Tue Sep 23 04:00:00 EDT 1975

OSTI ID:5071028

Gay, E C; Martino, F J

An electrochemical cell which comprises an alkali metal anode, a molten salt eutectic including that alkali metal in ionic form, and an improved cathode is described. The cathode composition comprises a transition metal sulfide such as FeS/sub 2/, a particulate current collector, e.g., carbon black, electrolyte and a sulfide product, e.g., Li/sub 2/S, of the cell reaction in excess of that produced by electrochemical reaction of the transition metal sulfide with the alkali metal in the discharge of the cell. Operation of the cell is performed by first electrocharging the cathode in series with the anode to convert the sulfide reaction product into a usable cathode reactant submerged in molten electrolyte. 5 figures. (auth)

• Assignee: U.S. Energy Research and Development Administration
• Patent Number(s): US 3907589
• OSTI ID: 5071028
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
CARBON
CARBON BLACK
CATHODES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENERGY STORAGE SYSTEMS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
IRON COMPOUNDS
IRON SULFIDES
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
LITHIUM SULFIDES
LITHIUM-SULFUR BATTERIES
METAL-NONMETAL BATTERIES
NONMETALS
OPERATION
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS