Rechargeable lead-hydrogen electrochemical cell

Patent · Sun Aug 21 00:00:00 EDT 1983

OSTI ID:5899447

Puglisi, V J

An improved rechargeable lead-hydrogen electrochemical cell is provided which comprises a cell stack secured to a retainer and disposed within a pressure vessel containing hydrogen gas. The stack includes a positive electrode comprising lead oxide, a pair of gas-porous negative electrodes containing a catalyst, a pair of separators and a pair of gas screens. The stack components are saturated with sulfuric acid electrolyte. Each of the negative electrodes has a separator disposed on one side thereof and a gas screen disposed on the opposite side thereof. The pressure vessel contains a gas inlet, and electrical leads connect to, respectively, the positive and negative electodes and exit the pressure vessel. In the charged form, the cell reactants exist as lead oxide and hydrogen gas. When the cell is discharged, the lead oxide is reduced to lead sulfate and the hydrogen gas is oxidized at a catalytic surface to hydrogen ion. The cell has a lower cost with fewer technical problems, has a higher specific energy density and has a superior performance, relative to conventional metal hydrogen cells.

• Assignee: Yardney Corporation
• Patent Number(s): US 4467020
• OSTI ID: 5899447
• Resource Relation: Patent File Date: Filed date 21 Jan 1983; Other Information: PAT-APPL-459841
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
METAL-GAS BATTERIES
DESIGN
BATTERY SEPARATORS
DENSITY
ELECTROLYTES
HYDROGEN
LEAD
PERFORMANCE
PRESSURE VESSELS
SULFURIC ACID
CONTAINERS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELEMENTS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
NONMETALS
PHYSICAL PROPERTIES
250901* - Energy Storage- Batteries- Design & Development