Method of preparing an electrochemical cell in uncharged state. [cathode of Li sulfide, transition metal, and electrolytic salt]

Patent · Tue Feb 01 04:00:00 EST 1977

OSTI ID:7300194

Shimotake, H; Bartholme, L G; Arntzen, J D

A secondary electrochemical cell is assembled in an uncharged state for the preparation of a lithium alloy--transition metal sulfide cell. The negative electrode includes a material such as aluminum or silicon for alloying with lithium as the cell is charged. The positive electrode is prepared by blending particulate lithium sulfide, transition metal powder, and electrolytic salt in solid phase. The mixture is simultaneously heated to a temperature in excess of the melting point of the electrolyte and pressed onto an electrically conductive substrate to form a plaque. The plaque is assembled as a positive electrode within the cell. During the first charge cycle lithium alloy is formed within the negative electrode and transition metal sulfide, such as iron sulfide, is produced within the positive electrode. 2 figures, 2 tables.

• Assignee: Energy Research and Development Administration
• Patent Number(s): US 4006034
• OSTI ID: 7300194
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250901* -- Energy Storage-- Batteries-- Design & Development
250903 -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALLOYS
ALUMINIUM ALLOYS
AUTOMOBILES
CATHODES
CHALCOGENIDES
COBALT COMPOUNDS
COBALT SULFIDES
COPPER COMPOUNDS
COPPER SULFIDES
ELECTRIC BATTERIES
ELECTRIC-POWERED VEHICLES
ELECTROCHEMICAL CELLS
ELECTRODES
ENERGY STORAGE
ENERGY STORAGE SYSTEMS
FABRICATION
IRON COMPOUNDS
IRON SULFIDES
LITHIUM ALLOYS
LITHIUM COMPOUNDS
LITHIUM SULFIDES
LITHIUM-SULFUR BATTERIES
METAL-NONMETAL BATTERIES
MINERALS
OFF-PEAK ENERGY STORAGE
ORES
PYRITE
PYRITES
SILICON ALLOYS
STORAGE
SULFIDES
SULFUR COMPOUNDS
SULFUR ORES
TRANSITION ELEMENT COMPOUNDS
VEHICLES