Sealed lead-acid cell

Patent · Tue Jan 20 04:00:00 EST 1987

OSTI ID:6781387

Uba, T; Nelson, R F

This patent describes a normally sealed gas recombining lead-acid cell having a high rate discharge capability utilizing an ''oxygen cycle'' comprising: a container; at least one porous positive plate and at least one porous negative plate within the container, both plates having been electrochemically formed in situ in the container; a separator material interleaved between and in firm pressure contact with the plates, comprised of a mat of microfine glass fibers having a BET surface area of from about 0.2 to about 1.5 m/sup 2//g and a porosity of from about 70 to about 98 percent; and, liquid sulfuric acid electrolyte substantially fully absorbed within the pores of the plates and separator, the quantity of electrolyte being limited such that the pore volumes of the plates and the separator are less than fully filled.

• Assignee: Gates Energy Products, Inc., Denver, CO
• Patent Number(s): US 4637966
• OSTI ID: 6781387
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ADSORPTION
BATTERY SEPARATORS
CHEMISTRY
CONTAINERS
ELECTRIC BATTERIES
ELECTRIC DISCHARGES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTROLYTES
ELEMENTS
FIBERGLASS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LEAD-ACID BATTERIES
NONMETALS
OXYGEN
PLATES
POROSITY
SEALS
SORPTION
SULFURIC ACID
SURFACE AREA
SURFACE PROPERTIES
VOLUME