Battery device

Details Battery device Battery device

2005-08-16

2005-08-16

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

C429S129000, C429S247000

Reexamination Certificate

active

06929877

ABSTRACT:
The present invention includes a bi-electrode structure including a substrate, a positive electrode, and a negative electrode. The positive electrode and the negative electrode are respectively formed on different sides of the substrate. The substrate is to support and insulate the positive electrode and the negative electrode. To improve the conductivity, the positive electrode has a first metal layer and a positive material layer Similarly, the negative electrode has a second metal layer and a negative material layer. After covering with a separator on either the positive electrode or the negative electrode, the bi-electrode structure is rolled to form a battery with cylindrical shape or stacked up to form a prismatic battery.

REFERENCES:
patent: 5368961 (1994-11-01), Juergens
patent: 6468698 (2002-10-01), Hamano et al.

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