Air-assisted alkaline cell having a multilayer film seal assembly

Patent · Tue Jul 20 00:00:00 EDT 1993

OSTI ID:6279609

Hyland, R J

An air-assisted cell is described comprising active components of the cell, including an electrolyte, all of which are assembled within a container closed by a cover having at least one opening and said cover associated with a seal assembly comprising an organic polymeric seal member having a base with at least one opening and a multilayer plastic film disposed onto the base of said seal member, said multilayer plastic film comprising at least one inner layer of a first plastic film sandwiched between two outer layers of a different type of plastic film with said two outer layers having substantially the same melting temperature and said melting temperature being lower than the melting temperature of the at least one inner layer of the first plastic film; said two outer layers and said at least one inner layer being porous to permit air to pass through with said inner layer preventing the passage of the electrolyte from the cell; said multilayer film heat sealed at least at its peripheral area so that said two layers form an integral bond through said inner layer at the peripheral area thereby permitting air to pass through the multilayer film but preventing the cell's electrolyte from passing through.

• Assignee: Eveready Battery Co., Inc., St. Louis, MO (United States)
• Patent Number(s): US 5229223; A
• Application Number: PPN: US 7-784337
• OSTI ID: 6279609
• Resource Relation: Patent File Date: 29 Oct 1991
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ELECTRIC BATTERIES
DESIGN
AIR FLOW
CONTAINERS
COVERINGS
ELECTROLYTES
FILMS
MELTING POINTS
ORGANIC POLYMERS
PLASTICS
SEALS
ELECTROCHEMICAL CELLS
FLUID FLOW
GAS FLOW
MATERIALS
ORGANIC COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
POLYMERS
SYNTHETIC MATERIALS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
250901* - Energy Storage- Batteries- Design & Development