Title:
円筒型電池
Document Type and Number:
Japanese Patent JP6618018
Kind Code:
B2
Abstract:
In a cylindrical battery, a bottomed cylindrical battery case includes an opening end bent or curved toward a center axis of the battery case, and a constriction annularly formed around the center axis. A gasket is compressed by the opening end and the constriction, and a rim portion of the sealing member is grasped by the compressed gasket. The outer diameter of the battery case is 10 mm or less. A first corresponding line corresponds to the rim of the sealing member in a projected image of the sealing member on the virtual plane perpendicular to the center axis of the battery case, and a second corresponding line corresponds to a tip edge of the opening end in a projected image. In this case, deviation d of the second corresponding line from the first corresponding line toward the center axis satisfies −0.1 mm≤d≤+0.5 mm.
Inventors:
Akira Kakinuma
Keisuke Yoneda
Nozomi Tsukayama
Keisuke Yoneda
Nozomi Tsukayama
Application Number:
JP2016535763A
Publication Date:
December 11, 2019
Filing Date:
June 17, 2015
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H01M50/107; H01M50/119; H01M50/133; H01M50/184; H01M50/186; H01M50/193
Domestic Patent References:
| JP3283257A | ||||
| JP3283258A | ||||
| JP1063065U |
Foreign References:
| WO2012111061A1 |
Attorney, Agent or Firm:
Kawasaki/Hashimoto Patent Office
Shinichi Kawasaki
Yuko Tsumura
Shozo Yamashita
Kaoru Hashimoto
Shinichi Kawasaki
Yuko Tsumura
Shozo Yamashita
Kaoru Hashimoto