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专利名称：Secondary battery and its method of
manufacture
发明人：Sungjae Cho,Sangsok Jung,Masanori Kogure申请号：US1185申请日：20061228公开号：US08802255B2公开日：20140812
专利附图：
摘要：A secondary battery has a depression having a thickness less than that of otherportions of the periphery of a cap plate or a can. The depression includes a rupturesection having a smallest thickness in the depression and further includes wrinkles
between the rupture section and the periphery of the depression. Furthermore, thesecondary battery is manufactured by a method including: a first coining step of formingthe thickness of some portions of the cap plate or the can to be less than that of otherperipheral portions thereof; a second coining step of forming wrinkles on the peripheryof some portions where the first coining has been performed; and a third coining step offorming a rupture section having the smallest thickness in the depression on an inner sideof the wrinkles.
申请人：Sungjae Cho,Sangsok Jung,Masanori Kogure
地址：Yongin-si KR,Yongin-si KR,Yongin-si KR
国籍：KR,KR,KR
代理人：Robert E. Bushnell, Esq.
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