Loading and utilization of active material in nickel composite electrodes: optimization

Technical Report · Sat Dec 01 04:00:00 EST 1984

OSTI ID:6205043

Lee, W W; Ferrando, W A; Sutula, R A

As an attempt to reduce nickel battery weight, the nickel composite electrode, has been under development. Investigations were undertaken to determine the optimum conditions for loading and utilizing nickel hydroxide active material in nickel composite electrodes. The main emphasis was placed on the improvement of both loading efficiency by electrochemical impregnation and utilization efficiency of the Ni(OH)2 active material. The efficiencies were examined as functions of such electrochemical conditions as current density, nickel concentration, pH, temperature of the impregnating bath, the continuity of current flow and manner of adding Co(OH)S additive. Also studied was the loading efficiency of chemical impregnation (polarization method) and the suspension method which enables a direct loading of externally prepared active material into the composite body. The most important factor for a quick utilization of the active material was found to be the additive distribution. A model of the additive distribution in the active material is proposed to account for different patterns of utilization exhibited by the electrodes.

• Research Organization: Naval Surface Weapons Center, Silver Spring, MD (USA). White Oak Lab.
• OSTI ID: 6205043
• Report Number(s): AD-A-160354/7/XAB
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ADDITIVES
CHEMISTRY
COBALT COMPOUNDS
COBALT HYDROXIDES
COMPOSITE MATERIALS
DISTRIBUTION
EFFICIENCY
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXIDES
IMPREGNATION
MATERIALS
METALS
NICKEL
NICKEL COMPOUNDS
NICKEL HYDROXIDES
OPTIMIZATION
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS