Multilayer secondary battery and method of making same

Details Multilayer secondary battery and method of making same Multilayer secondary battery and method of making same

2011-07-19

2011-07-19

Yuan, Dah-Wei D (Department: 1727)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S129000

Reexamination Certificate

active

07981548

ABSTRACT:
A multilayer secondary battery including a positive electrode having an active substance layer formed on a flat sheet-form collector and a negative electrode having an active substance layer formed on a flat sheet-form collector stacked together in opposite relation via a separator. The positive electrode active substance layer differs in area from the negative electrode active substance layer. Active substance-free portions with no active substance layer coated thereon are formed on sides of the outer periphery of a collector of the electrode having the smaller active substance layer. The surface of the collectors at the active substance-free portions is covered with an insulating layer. The end face of the insulating layer facing away from a side contiguous to an active substance layer and the end face of the electrode having a larger active substance layer area are stacked together on the same plane that intersects vertically an electrode plane.

REFERENCES:
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Japanese Office Action dated Apr. 1, 2011, issued in corresponding Japanese Patent Application No. 2006-018746.

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