公开(公告)号：US09368763B2

公开(公告)日：2016-06-14

申请号：US14599231

申请日：2015-01-16

Applicant: Seiko Instruments Inc.

Inventor： Ken Miura ,  Takumi Sawayama ,  Tadahito Suzuki ,  Akira Mitsuzuka ,  Tomomi Kobayashi

IPC: H01M2/08 ,  H01M2/02 ,  H01M2/04 ,  H01M4/485 ,  H01M4/50 ,  H01M10/0569 ,  H01M2/16 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/42

CPC classification number: H01M2/0222 ,  H01M2/0413 ,  H01M2/08 ,  H01M2/1613 ,  H01M4/131 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M10/0427 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2010/4292 ,  H01M2220/30 ,  H01M2300/004 ,  Y02E60/122

Abstract: Provided is a nonaqueous electrolyte secondary battery including a bottomed cylindrical positive electrode casing and a negative electrode casing which is fixed to an opening of the positive electrode casing through a gasket. The opening of the positive electrode casing is caulked to the negative electrode casing side to seal the accommodation space. A shortest distance L1 between a caulking tip end and the negative electrode casing in the opening of the positive electrode casing is equal to or less than 70% of an average sheet thickness of the positive electrode casing, a shortest distance L2 between a tip end of the negative electrode casing and the positive electrode casing is equal to or less than 60% of the average sheet thickness of the positive electrode casing, and a distance L3 between the tip end of the negative electrode casing and the bottom of the positive electrode casing is equal to or less than 110% of the average sheet thickness of the positive electrode casing.

Abstract translation: 提供一种非水电解质二次电池，其包括通过垫圈固定到正电极壳体的开口的有底圆柱形正极壳体和负极壳体。 将正极壳体的开口填充到负极壳体侧以密封容纳空间。 正极壳体的开口部中的铆接末端和负极壳体之间的最短距离L1等于或小于正极壳体的平均片材厚度的70％，最小距离L2在正极壳体的顶端之间的最短距离L2 负极壳体和正极壳体的长度等于或小于正极壳体的平均片材厚度的60％，负极壳体的前端与正极壳体的底部之间的距离L3为 等于或小于正极壳体的平均片材厚度的110％。