Lead-acid batteries
First Claim
Patent Images
1. A method of producing a lead-acid battery capable of activation by the addition of electrolyte thereto, comprising the steps of:
- (a) starting with 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,(b) with the grids immersed in an aqueous solution of sulphuric acid, passing an eletric current 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 matrial of the plates,(c) ceasing the passage of the electric current when sufficient of the paste has been converted to provide the plates with a charge in excess of 50% of the charge present when the battery is fully charged, then(d) allowing the plates to stand in said solution for at least 15 minutes, then(e) repeating the passage of an electric current so as to bring the plates to fully charged condition, and thereafter(f) draining the sulphuric acid solution from the plates and then sealing the container against the ingress of air.
0 Assignments
0 Petitions
Accused Products
Abstract
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.
-
Citations
10 Claims
-
1. A method of producing a lead-acid battery capable of activation by the addition of electrolyte thereto, comprising the steps of:
-
(a) starting with 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, (b) with the grids immersed in an aqueous solution of sulphuric acid, passing an eletric current 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 matrial of the plates,(c) ceasing the passage of the electric current when sufficient of the paste has been converted to provide the plates with a charge in excess of 50% of the charge present when the battery is fully charged, then (d) allowing the plates to stand in said solution for at least 15 minutes, then (e) repeating the passage of an electric current so as to bring the plates to fully charged condition, and thereafter (f) draining the sulphuric acid solution from the plates and then sealing the container against the ingress of air. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of producing a lead-acid battery capable of activation by the addition of electrolyte thereto, comprising the steps of:
-
(a) starting with 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, (b) with the grids immersed in an aqueous solution of sulphuric acid, passing an electric current 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,(c) ceasing the passage of the electric current, then (d) allowing the plates to stand in said solution for at least 15 minutes, then (e) repeating the passage of an electric current so as to bring the plates to fully charged condition, and thereafter (f) draining the sulphuric acid solution from the plates and then sealing the container against the ingress of air.
-
-
10. A method of producing a lead-acid battery capable of activation by the addition of electrolyte thereto, comprising the steps of:
-
(a) starting with 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, (b) with the grids immersed in an aqueous solution of sulphuric acid, passing an electric current between the grids so that the solution rises to a temperature in excess of 180°
F. but not greater than 210°
F. and the paste on the grids is converted to the active material of the plates,(c) ceasing the passage of the electric current when at least 50% of the paste has been converted to the active material of the plates, then (d) allowing the plates to stand in said solution for at least 15 minutes, then (e) repeating the passage of an electric current so as to bring the plates to fully charged condition, and thereafter (f) draining the sulphuric acid solution from the plates and then sealing the container against the ingress of air.
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeLucas Industries Limited (Zeppelin - Stiftung der Stadt Friedrichshafen)
-
Original AssigneeLucas Industries Limited (Zeppelin - Stiftung der Stadt Friedrichshafen)
-
InventorsRaban, Victor J., Bant, John A.
-
Primary Examiner(s)Skapars, Anthony
-
Application NumberUS05/868,784Time in Patent Office761 DaysField of Search429/48, 429/49, 429/224-228, 429/118, 429/110, 429/54, 429/204, 204/2.1US Class Current429/48CPC Class CodesC04B 35/80 Fibres, filaments, whiskers...H01M 10/128 Processes for forming or st...H01M 4/22 Forming of electrodesY02E 60/10 Energy storage using batteriesY02P 70/50 Manufacturing or production...
