Nonaqueous electrolyte secondary battery

Details Nonaqueous electrolyte secondary battery Nonaqueous electrolyte secondary battery

2006-10-31

2006-10-31

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

C429S162000, C429S330000

Reexamination Certificate

active

07128998

ABSTRACT:
A nonaqueous electrolyte secondary battery includes an electrode group prepared by winding spirally or in a flattened shape a laminate structure including a separator interposed between positive and negative electrodes, and a nonaqueous electrolyte held by the electrode group, wherein an edge portion of the separator in a direction perpendicular to a winding direction protrudes outward from edges of the positive and negative electrodes in the direction perpendicular to the winding direction, and the separator satisfies conditions given by formulas (1) to (3) given below:in-line-formulae description="In-line Formulae" end="lead"?0≦X1≦(Y1/1.5)≦10  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?X2≦10  (2)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?X2≦Y2≦20.  (3)in-line-formulae description="In-line Formulae" end="tail"?

REFERENCES:
patent: 2000-348706 (2000-12-01), None
patent: 2001-84985 (2001-03-01), None
patent: 2002-93405 (2002-03-01), None
patent: 2003-217674 (2003-07-01), None
patent: 2005000830 (2005-01-01), None

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