CYLINDER TYPE SECONDARY BATTERY
A cylindrical secondary battery is provided to prevent movement of a jelly roll-like electrode assembly, thereby preventing the internal resistance of a cylindrical battery from being increased by external impact. A cylindrical secondary battery(100) comprises a jelly roll-like electrode assembly(12...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A cylindrical secondary battery is provided to prevent movement of a jelly roll-like electrode assembly, thereby preventing the internal resistance of a cylindrical battery from being increased by external impact. A cylindrical secondary battery(100) comprises a jelly roll-like electrode assembly(120), and a cylindrical can(110) for housing the electrode assembly, wherein at least one flow-preventing portion(111) is formed on the inner surface of the cylindrical can. The flow-preventing portion comprises a rib formed along at least one direction of the longitudinal direction, circumferential direction or oblique direction of the cylindrical can. |
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