Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer – spacer or materials for use therewith
Reexamination Certificate
2005-12-22
2010-02-16
Ryan, Patrick (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer, spacer or materials for use therewith
C429S129000, C429S232000, C029S623100, C029S623500
Reexamination Certificate
active
07662517
ABSTRACT:
Disclosed is an organic/inorganic composite porous separator comprising: (a) a polyolefin-based separator substrate; and (b) an active layer formed by coating at least one region selected from the group consisting of a surface of the substrate and a part of pores present in the substrate with a mixture of inorganic particles and a binder polymer, wherein the inorganic particles in the active layer are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a pore structure. A method for manufacturing the same separator and an electrochemical device including the same separator are also disclosed. An electrochemical device comprising the organic/inorganic composite porous separator shows improved thermal and electrochemical safety and quality, simultaneously.
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Written Opinion dated Apr. 7, 2006 for Application No. PCT/KR2005-004450.
International Search Report dated Apr. 7, 2007 for Application No. PCT/KR2005-004450 (All references cited in Search Report are listed above).
Ahn Soon Ho
Hong Jang Hyuk
Kim Seok Koo
Lee Sang Young
Suk Jung Don
Birch & Stewart Kolasch & Birch, LLP
LG Chem Ltd.
Mercado Julian
Ryan Patrick
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