Composite coating for electrochemical electrode and method
A coated electrode is described which is capable of electrochemically releasing an active species to a nonaqueous electrolyte in an electrochemically cell. It comprises: an electrode body comprising active species material; and a composite coating over the electrode body comprising a non-metallic, inorganic, ionically conductive active species layer forming a coating over the electrode body for reducing passivation of the electrode body. The active species layer comprises the active species material present in the electrode body, at least one electronegative element selected from the group consisting of fluorine, iodine, bromine, chlorine, sulfur, nitrogen and oxygen and at least one amphoteric element and a polymer layer over the inorganic layer for maintaining the mechanical integrity of the inorganic layer.
- Assignee:
- Voltaix, Inc., North Branch, NJ
- Patent Number(s):
- US 4707422
- OSTI ID:
- 5744485
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BROMINE COMPOUNDS
CALCIUM COMPOUNDS
CHEMICAL COMPOSITION
CHEMISTRY
CHLORINE COMPOUNDS
COATINGS
COMPOSITE MATERIALS
ELECTRIC BATTERIES
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTES
FLUORINE COMPOUNDS
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
IODINE COMPOUNDS
LAYERS
LITHIUM COMPOUNDS
MAGNESIUM COMPOUNDS
MATERIALS
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PASSIVATION
PHYSICAL PROPERTIES
POLYMERS
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
SOLID ELECTROLYTES
SULFUR COMPOUNDS