High rate sealed lead-acid battery with ultrathin plates

Patent · Tue Sep 06 04:00:00 EDT 1988

OSTI ID:6632071

Nelson, R F

This patent describes a normally sealed rechargeable lead-acid cell of the starved electrolyte type which internally recombines oxygen on charging, comprising: porous positive and negative electrode plates, each having major faces and a thickness of from about 0.007 to about 0.027 inches and formed of electrochemically active material respectively joined in high hydrogen overvoltage foraminous lead grids, each grid having a thickness of from about 0.005 inches to no more than 0.019 inches; porous, electrolyte-absorbent compressible separator interposed between the positive and negative plates and compressed against the major faces of such plates to define, in combination, a cell pack; the geometric surface area of the major faces of such plates being at about 28 square inches per cubic inch of volume of the cell pack; liquid acid electrolyte in a starved amount absorbed in the pores of the plates and separator; and a container encapsulating the cell pack in a normally sealed configuration.

• Assignee: Gates Energy Products, Inc., Gainsville, FL
• Patent Number(s): US 4769299
• OSTI ID: 6632071
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250901* -- Energy Storage-- Batteries-- Design & Development
250903 -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ANODES
BATTERY CHARGING
BATTERY SEPARATORS
CATHODES
DESIGN
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
LEAD-ACID BATTERIES
NONMETALS
OXYGEN
PLATES
SEALS