公开(公告)号：US20230361391A1

公开(公告)日：2023-11-09

申请号：US18028644

申请日：2021-10-05

申请人： SANYO Electric Co., Ltd.

发明人： Yuichiro Okada ,  Katsuya Ito ,  Shuichi Yamashita ,  Yuki Iida

IPC分类号： H01M50/107 ,  H01M50/171 ,  H01M50/124

CPC分类号： H01M50/107 ,  H01M50/171 ,  H01M50/1243

摘要： Provided is a secondary battery in which corrosion of an exterior body is stably suppressed. A non-aqueous electrolyte secondary battery according to an embodiment of the present disclosure comprises: an exterior body having a bottomed cylindrical shape and having a grooving portion in an opening portion; an electrode body and a non-aqueous electrolyte housed in the exterior body; and a sealing body caulked and fixed between the grooving portion and an opening end in the opening, wherein in a portion from the grooving portion of the inner surface of the exterior body to the open end portion, a powder of at least one among compounds selected from the group consisting of hydroxides, oxides, and carbonates is present.