Electrochemical cells having a gelled anode-electrolyte mixture

Patent · Tue Jul 21 04:00:00 EDT 1987

OSTI ID:6046137

Graham, T O; Goodman, J T

A method is described for improving the discharge characteristics of an electrochemical cell having a cathode, a powdered metal anode and an aqueous alkaline electrolyte solution comprising the step of gelling an intimate mixture of the powdered metal anode and electrolyte solution with an agent. The agent comprises a material capable of absorbing water and having a carbohydrate backbone and water soluble, ionized side chain grafted thereon; the carbohydrate backbone and side chain being in molar ratios of from 1:1 to 1:19; and the side chain being selected from the group consisting of acrylonitrile, acrylamide, acrylic acid, methyl methacrylate, acrylic acid ester, vinylacetate, N-vinyl-2-pyrrolidone, salts of alginic acid, gluconic acid, and mixtures.

• Assignee: Duracell Inc., Bethel, CT
• Patent Number(s): US 4681698
• OSTI ID: 6046137
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ACRYLAMIDE
ACRYLIC ACID
ACRYLONITRILE
ADSORPTION
AMIDES
ANODES
AQUEOUS SOLUTIONS
CARBOHYDRATES
CARBOXYLIC ACIDS
CATHODES
DISPERSIONS
ELECTRIC DISCHARGES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
GELATION
GLUCONIC ACID
HYDROGEN COMPOUNDS
HYDROXY ACIDS
METALLURGY
METALS
MIXTURES
MONOCARBOXYLIC ACIDS
NITRILES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
POWDER METALLURGY
SOLUBILITY
SOLUTIONS
SORPTION
WATER