Method of making a sealed lead-acid battery with a gel electrolyte and sealed lead-acid storage battery made according to this method

Patent · Tue Aug 18 00:00:00 EDT 1987

OSTI ID:6155001

Chreitzberg, A M; Chiacchio, F J

A method is described of making a sealed lead-acid storage battery having a plurality of electrodes and a gel electrolyte consisting substantially of sulfuric acid and a gelling agent, comprising the steps of: (a) activating a dry unformed battery by filling the battery with sulfuric acid, (b) maintaining the battery on open circuit or a period of time sufficient to chemically bond sulphuric acid as sulfate to the electrodes and lower the specific gravity of the acid to the desired gelling value, (c) dumping the free acid from the battery, (d) adding a solution of gelling agent and sulfuric acid to fill the battery to the normal formation level, (e) formation charging the battery by applying a constant charge current of 5-16 A/100 Ah for an input of 200-300 Ah/lb. positive active material whereby gelling of the electrolyte is effected, (f) when formation is complete, removing excess liquid, if any, to top of electrodes, and (g) sealing the battery with a pressure relief valve.

• Assignee: Exide Corp., Horsham, PA
• Patent Number(s): US 4687718
• OSTI ID: 6155001
• Resource Relation: Patent File Date: Filed date 24 Oct 1986
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
LEAD-ACID BATTERIES
ELECTRODES
ELECTROLYTES
SEALS
CHEMICAL BONDS
DENSITY
ELECTRIC CURRENTS
GELATION
GELS
PRESSURE CONTROL
RELIEF VALVES
SULFATES
SULFURIC ACID
TIME DEPENDENCE
COLLOIDS
CONTROL
CONTROL EQUIPMENT
CURRENTS
DISPERSIONS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
EQUIPMENT
FLOW REGULATORS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SULFUR COMPOUNDS
VALVES
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries