Electrode plates for lead-acid battery and their manufacturing m

Details Electrode plates for lead-acid battery and their manufacturing m Electrode plates for lead-acid battery and their manufacturing m

1996-07-03

1999-09-14

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429225, H01M 462

Patent

active

059521236

ABSTRACT:
Electrode plates for a lead-acid battery have an active material layer using polyvinylidene fluoride as a binder formed on both sides of a substrate. The substrate is selected from the group consisting of a foil-like sheet made of pure lead or lead alloy and a polyester film that is lead-plated or covered with a conductive coating layer containing carbon powder, whose main ingredient is graphite as a conducting agent. The method of manufacturing provides a thin electrode plate that is suitable for use as a spirally-wound type of electrode plate. The resulting plates have excellent high-rate discharge characteristics and long cycle life. The electrode plates are manufactured in a high productivity process that uses neither pore-forming agents nor pore-forming processes.

REFERENCES:
patent: 3395043 (1968-07-01), Shoeld
patent: 3494800 (1970-02-01), Shoeld
patent: 4110519 (1978-08-01), Nilsson
patent: 4769299 (1988-09-01), Nelson
patent: 4902589 (1990-02-01), Dahn et al.
patent: 5368961 (1994-11-01), Juergens
patent: 5468571 (1995-11-01), Fujimoto et al.

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