Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Reexamination Certificate
2011-06-07
2011-06-07
Ruddock, Ula C (Department: 1729)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
C429S094000, C429S130000, C429S208000, C429S164000
Reexamination Certificate
active
07955730
ABSTRACT:
Disclosed is a cylindrical lithium secondary battery capable of improving the stability thereof against the external pressure, The cylindrical lithium secondary battery includes an electrode assembly and a core. The electrode assembly includes a first electrode sheet, a second electrode sheet and a separator interposed between the first and second electrode sheets, which are rolled together about an axis. The electrode assembly defines a space. The core has a tubular shape provided with a gap. The core includes at least one reinforcing structure extending in a direction extending along the axis. The core is inserted into the space of the electrode assembly. A housing receives the electrode assembly and core.
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Chang Youn Han
Kim Jin Wook
Kim Jong Ku
Kim Young Taek
Nam Sang Bong
Barrow Amanda
Knobbe Martens Olson & Bear LLP
Ruddock Ula C
Samsung SDI & Co., Ltd.
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