Flexible carbon fiber, carbon fiber electrode and secondary ener

Details Flexible carbon fiber, carbon fiber electrode and secondary ener Flexible carbon fiber, carbon fiber electrode and secondary ener

1995-01-13

1996-05-21

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

429194, 429210, 429218, 4234472, H01M 648, D01F 912

Patent

active

055188362

ABSTRACT:
A novel flexible carbon fiber is disclosed which has a generally non-circular or tubular cross-sectional shape, a Young's modulus of from greater than 1 MM psi (6.9 GPa) to 55 MM psi (380 GPa), and a bending strain value of from greater than 0.01 to less than 50%. The invention also resides in an electrode for a secondary energy storage device utilizing the carbon fibers of the invention and containing a non-aqueous electrolyte. The invention further resides in a secondary energy storage device comprising a water impermeable housing having at least two cells containing at least one shared bipolar electrode made of the flexible carbon fibers of the invention. Also disclosed is a pseudo bipolar electrode and terminal electrode for use in a lithium ion battery in which the fibers or a portion of the carbon fibers are coated with an ion active lithium salt of a metal oxide. Also disclosed is a novel battery stack and a method of manufacture of the secondary energy storage device.

REFERENCES:
patent: 4830938 (1989-05-01), McCullough et al.
patent: 4865931 (1989-09-01), McCullough et al.
patent: 5032473 (1991-07-01), Hoge
patent: 5082594 (1992-01-01), Tsuzuki et al.
patent: 5209975 (1993-05-01), Miyazaki et al.
patent: 5227237 (1993-07-01), Saruyama et al.

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