Title:
【発明の名称】段付き絶縁リング、それを用いた円筒形ニッケル・水素二次電池の製造方法
Document Type and Number:
Japanese Patent JP2997997
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent generation of internal shortcircuiting in a battery even when an impact is applied due to dropping. SOLUTION: A stepped insulator ring Al has a large diameter top part 4a and a small diameter bottom part 4b, is provided internally with a step part 4c, and furnished with at least one notch 4B in the bottom part 4b, wherein the peripheral edge 5a of a lid 5 is fastened to the step part 4c. This consolidated ring construction obtained A1 is arranged facing aside in a place near the top opening 2A of a blind cylindrical can 2 accommodating electrolyte and a set 1 of electrode plates 1 to which a current collector sheet 6 protruding upward is attached, and the sheet 6 is installed in the area till the bottom 5d of the lid 5 via the notch 4B and is spot welded. Then the ring construction A1 is inserted from the top opening 2A and placed upon the set of electrode plates 1 followed by fastening to accomplish a seal.
Inventors:
Kondo Kousei
Masanori Suzuki
Masanori Suzuki
Application Number:
JP29303195A
Publication Date:
January 11, 2000
Filing Date:
November 10, 1995
Export Citation:
Assignee:
Furukawa Battery Co., Ltd.
International Classes:
H01M2/08; H01M2/12; H01M10/28; (IPC1-7): H01M10/28; H01M2/08; H01M2/12
Domestic Patent References:
| JP553130U |