Secondary battery or cell. [additive to cathodic reactant to improve charge/discharge capacity]
Patent
·
OSTI ID:7318810
This invention concerns an improved secondary battery or cell of the type having one or more anodic reaction zones containing a molten alkali metal reactant-anode in electrical contact with an external circuit, one or more cathodic reaction zones, and a cation-permeable barrier to mass liquid transport interposed between and in contact with the anodic and cathodic reaction zones. The cathodic reation zone(s) contains a cathodic reactant and an electrode of porous conductive material which is at least partially immersed in the cathodic reactant. When the battery or cell is in the theoretically fully charged state, the cathodic reactant consists of sulfur; when it is at least partially discharged, the reactant consists of a single-phase composition comprising a molten polysulfide salt of the anodic reactant or a two-phase composition comprising molten sulfur and molten sulfur-saturated polysulfide salts of the anodic reactant. The above-mentioned porous, conductive material is in electrical contact with both the cation-permeable barrier and an external circuit. The improvement comprises increasing the charge/discharge capacity of the battery or cell by including in the cathodic reactant controlled amounts of certain metals, alloys comprising such metals, salts of these metals, and oxides of these metals. 4 figures, 1 table.
- Assignee:
- Ford Motor Co.
- Patent Number(s):
- US 4002806
- OSTI ID:
- 7318810
- Country of Publication:
- United States
- Language:
- English
Similar Records
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·
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·
OSTI ID:7318804
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·
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Related Subjects
25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALKALI METALS
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BORON COMPOUNDS
BORON OXIDES
CATHODES
CHALCOGENIDES
CHROMIUM
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENERGY STORAGE SYSTEMS
IRON
IRON ALLOYS
IRON BASE ALLOYS
LITHIUM COMPOUNDS
LITHIUM OXIDES
METAL-NONMETAL BATTERIES
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
SODIUM COMPOUNDS
SODIUM OXIDES
SODIUM SULFIDES
SODIUM-SULFUR BATTERIES
STAINLESS STEELS
STEELS
SULFIDES
SULFUR
SULFUR COMPOUNDS
TRANSITION ELEMENTS
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALKALI METALS
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BORON COMPOUNDS
BORON OXIDES
CATHODES
CHALCOGENIDES
CHROMIUM
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENERGY STORAGE SYSTEMS
IRON
IRON ALLOYS
IRON BASE ALLOYS
LITHIUM COMPOUNDS
LITHIUM OXIDES
METAL-NONMETAL BATTERIES
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
SODIUM COMPOUNDS
SODIUM OXIDES
SODIUM SULFIDES
SODIUM-SULFUR BATTERIES
STAINLESS STEELS
STEELS
SULFIDES
SULFUR
SULFUR COMPOUNDS
TRANSITION ELEMENTS