Glass fibre paper separator for electrochemical cells

Patent · Tue Aug 14 00:00:00 EDT 1984

OSTI ID:6279990

Harris, F J.T.

A separator suitable for electrochemical cells of the lead-acid recombinant type comprises a sheet of entangled glass fibres. It has been found that significant improvements in performance can be obtained when 5 to 35% by weight of the fibres have a diameter of less than 1 ..mu..m. It has also been found surprisingly advantageous if the overall solubility of the glass fibres is greater than 3% and preferably at least 4%, by weight in 5 hours at 85/sup 0/ C. in sulphuric acid of specific gravity 1.200. It has been found that further benefits can accrue if all or a major proportion of the fibres cover a continuous range of fibre diameters and fibre lengths, and preferably a minor proportion of the fibres being over 5 mm in length.

• Assignee: Evans Adlard and Company Limited (United Kingdom)
• Patent Number(s): US 4465748
• OSTI ID: 6279990
• Resource Relation: Patent Priority Date: Priority date 20 Apr 1983, United Kingdom of Great Britain and Northern Ireland (UK); Other Information: PAT-APPL-486566
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
BATTERY SEPARATORS
FABRICATION
LEAD-ACID BATTERIES
DENSITY
FIBERS
GLASS
PAPER
PERFORMANCE
POROUS MATERIALS
SOLUBILITY
SULFURIC ACID
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
PHYSICAL PROPERTIES
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries