Battery with a spiral electrode unit

Details Battery with a spiral electrode unit Battery with a spiral electrode unit

1995-05-18

1996-04-16

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

296231, H01M 610

Patent

active

055081223

ABSTRACT:
Novel lead location and winding configuration allow more efficient spiral electrode fabrication for a battery that is less susceptible to internal short circuits. The battery has separator material sandwiched between positive and negative electrode strips, which are rolled into a spiral electrode unit. The electrodes have active material that covers a core except in regions where leads are attached. One lead is positioned at the outermost winding, and both sides of each lead face either separator material only or the same polarity electrode via separator material. A special lead taping processing step is eliminated.

REFERENCES:
patent: 4482615 (1984-11-01), Rosansky et al.
patent: 4709472 (1987-12-01), Machida et al.
patent: 4937154 (1990-06-01), Moses et al.
patent: 5017442 (1991-05-01), Watanabe et al.

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