Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Reexamination Certificate
2006-07-11
2008-12-30
Ryan, Patrick (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
C429S129000, C429S164000
Reexamination Certificate
active
07470486
ABSTRACT:
A lithium secondary battery, in which electrolyte impregnation capability is improved, even in the case of a high-density electrode assembly, by forming a bottom insulator plate with a structure to facilitate the impregnation of the electrode assembly with an electrolyte. The bottom insulator plate may be formed with a plurality of holes in the form of a mesh, and the holes are defined by a plurality of protrusions with differing heights to improve the electrolyte impregnation capability. Alternatively, the bottom insulator plate may be formed with a central hole and a plurality of peripheral holes radially arranged around the central hole in an aperture ratio to improve the electrolyte impregnation capability.
REFERENCES:
patent: 5525437 (1996-06-01), Freluche et al.
patent: 5776630 (1998-07-01), Bohnstedt
patent: 2006/0081530 (2006-04-01), Beard
patent: 2004111105 (2004-04-01), None
Chang Seok-Gyun
Hyung Yoo-eup
Kim Jungseog
Lee Jae-sung
Park Jeunghun
Christie Parker & Hale LLP
Ryan Patrick
Samsung SDI & Co., Ltd.
Siddiquee Muhammad
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