Lead-acid batteries

Patent · Tue Feb 12 04:00:00 EST 1980

OSTI ID:5534304

Bant, J A; Raban, V J

A method of producing a lead-acid battery capable of activation by the addition of electrolyte thereto, comprises the steps of: starting with a battery container accommodating at least one pack of battery plate grids having insulating separators interposed between adjacent grids, each of said grids carrying the lead-acid battery paste required to produce a positive or a negative battery plate after conversion of the paste into the active material of the plate. With the grids immersed in an aqueous solution of sulphuric acid, an electric current is passed between the grids so that the solution rises to a temperature in excess of 180* F. But not greater than 210* F., the passage of the electric current converting the paste on the grids to the active material of the plates. The passage of the electric current is ceased when sufficient of the paste has been converted to provide the plates with a charge in excess of 50% of the required final value and the plates are then allowed to stand in said solution for at least 15 minutes. The passage of an electric current is then repeated so as to produce a charge on the plates of the required value, whereafter the sulphuric acid solution is drained from the plates and the container is sealed against the ingress of air.

• Assignee: Lucas Industries Ltd (United Kingdom)
• Patent Number(s): US 4188461
• OSTI ID: 5534304
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250901* -- Energy Storage-- Batteries-- Design & Development
CHEMICAL ACTIVATION
DESIGN
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LEAD-ACID BATTERIES
SULFURIC ACID