Rechargeable secondary battery having an aluminum salt electrolyte

Patent · Tue Aug 03 04:00:00 EDT 1982

OSTI ID:5145286

Carpio, R A

This invention provides a secondary battery containing a chloroaluminate molten salt electrolyte and a positive component capable of sodium or lithium intercalation. The preferred battery configuration incorporates a molten sodium negative separated from the chloroaluminate salt electrolyte by a solid separator such as a sodium - beta - alumina ceramic which possesses a high ionic conductivity for Na+ ions. Either a NaA1C1/sub 4/ fusible salt is preferred as the electrolyte component. The latter electrolyte is unique in intercalation batteries in general, since both Na+ and Li+ intercalation can occur simultaneously. The former electrolyte is limited to Na+ intercalation during the discharge reaction. TiS/sub 2/ is a favored positive solid solution electrode, although there are other possible transition metal oxides, sulfides, and selenides which could serve the function.

• Assignee: EDB-84-063633
• Patent Number(s): None
• OSTI ID: 5145286
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METALS
ALUMINATES
ALUMINIUM CHLORIDES
ALUMINIUM COMPOUNDS
BATTERY SEPARATORS
CERAMICS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DISPERSIONS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTROLYTES
ELECTROLYTIC CELLS
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
LITHIUM
METALS
MIXTURES
MOLTEN SALTS
OXYGEN COMPOUNDS
SALTS
SODIUM
SOLID SOLUTIONS
SOLUTIONS