Nonaqueous electrolyte secondary battery

Details Nonaqueous electrolyte secondary battery Nonaqueous electrolyte secondary battery

2007-08-28

2007-08-28

Weiner, Laura (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

C429S164000, C429S331000, C429S329000

Reexamination Certificate

active

11041700

ABSTRACT:
A nonaqueous electrolyte secondary battery includes an electrode group having a positive electrode and a negative electrode wound flatly by way of an interposed separator, a positive electrode tab electrically connected to the positive electrode, and projecting from a spiral winding surface of the electrode group, a negative electrode tab electrically connected to the negative electrode, and projecting from the spiral winding surface, and a nonaqueous electrolyte, wherein the nonaqueous solvent contains sultone compound including a ring having at least one double bond, and a distance between the positive electrode tab and the negative electrode tab is 6 mm to 18 mm.

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