Electrochemical storage cell or battery of the alkali metal and sulfur type

Patent · Tue Sep 09 04:00:00 EDT 1980

OSTI ID:6707801

Weddigen, G

An electrochemical storage cell or battery is described that has at least one anode filled with a molten alkali metal as the anolyte and at least one cathode chamber filled with a sulfur-containing catholyte substance with the anode chamber and the cathode chamber separated from each other by an alkali-ion-conducting solid electrolyte. To the catholyte substance in the cathode chamber is added a chemical compound of the polar bond type which can charge the sulfur positively while absorbing electrons. This induces mobilization of the sulfur phase in the cathode chamber and prevents major accumulation of liquid sulfur as an insulator. As a result the cell can be repeatedly recharged with large currents to a greater capacity.

• Assignee: Brown Boveri and Cie Ag (Germany)
• Patent Number(s): US 4221848
• OSTI ID: 6707801
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METALS
ANTIMONY COMPOUNDS
ANTIMONY FLUORIDES
BATTERY CHARGING
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
METAL-NONMETAL BATTERIES
METALS
NONMETALS
SOLID ELECTROLYTES
SULFUR
TANTALUM COMPOUNDS
TANTALUM FLUORIDES
TRANSITION ELEMENT COMPOUNDS