Pocketed electrode plate for use in lithium ion secondary...

Details Pocketed electrode plate for use in lithium ion secondary... Pocketed electrode plate for use in lithium ion secondary...

2005-04-19

2005-04-19

Cantelmo, Gregg (Department: 1745)

Metal working

Method of mechanical manufacture

Electrical device making

C029S623500, C429S136000, C429S137000, C429S138000

Reexamination Certificate

active

06881233

ABSTRACT:
A pocketed electrode plate for use in a ultra-slim lithium ion secondary battery, its manufacturing method and a lithium ion secondary battery using the same. The pocketed electrode plate comprises an electrode plate which has a coating layer of an electrode active material and a non-coated projection portion. The electrode active material can reversibly insert and extract lithium ions. The electrode plates further includes separating membranes which cover both sides of the electrode plate while exposing only the non-coated projection portion, and an insulating polymer having an adhesive component on both surfaces thereof. The insulating polymer film is placed adjacent to edges of the electrode plate but does not cover any portion of the electrode surface. The insulating polymer film is thermally bonded onto two separating membranes. A plurality of pocketed electrode plates may be produced by using a pressing roll.

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