Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Reexamination Certificate
2006-12-28
2011-11-08
Ruddock, Ula C. (Department: 1729)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
C429S163000, C429S164000
Reexamination Certificate
active
08053101
ABSTRACT:
A lithium ion secondary battery in which an electrode assembly is easily impregnated with an electrolyte is provided. The lithium ion secondary battery includes an electrode assembly wrapped by a sealing tape, an upper insulating plate positioned on the top of the electrode assembly, a lower insulating plate positioned at the bottom of the electrode assembly, a case for accommodating the electrode assembly, and a cap assembly for sealing the case. In one embodiment, the upper insulating plate has holes which may include a form of a mesh. In another embodiment, the lower insulating plate has various shapes of recesses on the surface. The surface of the lower insulating plate may be coated with a material that has an affinity for the electrolyte. An inner surface of the case may have various shapes of recesses or grooves. The sealing tape may be coated with a material that has an affinity for an electrolyte. Therefore, according to the principles of the present invention, the electrode assembly is easily impregnated with the electrolyte, and overall performance of the lithium ion secondary battery is improved.
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Chang Seok-Gyun
Hyung Yoo-eup
Kim Jung-Seog
Kim Yong-Tae
Nam Sang-Bong
Bushnell , Esq. Robert E.
Davis Patricia
Ruddock Ula C.
Samsung SDI & Co., Ltd.
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