Nickel hydroxide active-material densities. Technical report
Technical Report
·
OSTI ID:7242190
The density of nickel-electrode active materials was measured in situ as a function of the state of charge and operating conditions of the nickel electrode. Sintered electrodes made by both chemical and electrochemical impregnation methods were studied, and the effects of cobalt additives on the density and compressibility of the active material were determined. The results clearly indicate a phase transition that occurs when the active material is charged above an oxidation state of about 2.7. The transition involves large changes in the density, volume, and compressibility of the active material. Changes in density during open-circuit stand, cycling, and trickle charging were measured and the results correlated with the operating characteristics of nickel electrodes in battery cells.
- Research Organization:
- Aerospace Corp., El Segundo, CA (USA). Chemistry and Physics Lab.
- OSTI ID:
- 7242190
- Report Number(s):
- AD-A-191411/8/XAB; TR-0086A(2945-01)-3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
CHEMICAL REACTIONS
COBALT
DENSITY
DOCUMENT TYPES
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENERGY STORAGE
FABRICATION
HYDROGEN COMPOUNDS
HYDROXIDES
IMPREGNATION
MATERIALS
METAL-METAL OXIDE BATTERIES
METALS
NICKEL
NICKEL COMPOUNDS
NICKEL-CADMIUM BATTERIES
OXIDATION
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROGRESS REPORT
SINTERING
STORAGE
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
CHEMICAL REACTIONS
COBALT
DENSITY
DOCUMENT TYPES
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENERGY STORAGE
FABRICATION
HYDROGEN COMPOUNDS
HYDROXIDES
IMPREGNATION
MATERIALS
METAL-METAL OXIDE BATTERIES
METALS
NICKEL
NICKEL COMPOUNDS
NICKEL-CADMIUM BATTERIES
OXIDATION
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROGRESS REPORT
SINTERING
STORAGE
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS