Rechargeable battery and case manufacturing method of case including the same

A rechargeable battery capable of preventing rust generation at an opening side of a battery case. The rechargeable battery according to embodiments of the present invention includes: an electrode assembly; a case having an opening and accommodating the electrode assembly; and a cap assembly electri...

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Bibliographic Details
Main Authors Seong, Jae-Il, Yun, Ji-Won, Yoshio, Hideaki
Format Patent
LanguageEnglish
Published 26.11.2019
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A rechargeable battery capable of preventing rust generation at an opening side of a battery case. The rechargeable battery according to embodiments of the present invention includes: an electrode assembly; a case having an opening and accommodating the electrode assembly; and a cap assembly electrically connected to the electrode assembly, and coupled to an opening side of the case with a gasket interposed therebetween, wherein the opening side of the case includes a trimming end, a gap proximate the trimming end, and a coating layer on an inner surface of the gap proximate the trimming end.
Bibliography:Application Number: US201414497115