CYLINDRICAL SECONDARY BATTERY

PROBLEM TO BE SOLVED: To prevent impairment of airtightness in a battery container due to waving occurred by swaging a battery lid and a lid member integrally.SOLUTION: A plurality of notches 55 are formed along an edge 52 on an upper end 51 that is bent toward an axis core side of a battery can 2....

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Bibliographic Details
Main Authors OGUCHI YUTO, TOIZONO TAKESHI
Format Patent
LanguageEnglish
Published 29.11.2012
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:PROBLEM TO BE SOLVED: To prevent impairment of airtightness in a battery container due to waving occurred by swaging a battery lid and a lid member integrally.SOLUTION: A plurality of notches 55 are formed along an edge 52 on an upper end 51 that is bent toward an axis core side of a battery can 2. When the upper end 51 of the battery can 2 and a lid member 30 are swaged via a gasket 43, the upper end 51 of the battery can 2 is deformed so that a portion on an edge side of the notch 55 becomes narrow. As a result, the waving on the upper end 51 of the battery can 2 bent toward the axis core side is absorbed and the airtightness of the battery container is secured.
Bibliography:Application Number: JP20110102740