Title:
TERMINAL-EQUIPPED BUTTON CELL
Document Type and Number:
WIPO Patent Application WO/2022/196358
Kind Code:
A1
Abstract:
This terminal-equipped button cell has a cathode can and an anode can that are flat cylinders, a gasket that insulates and seals the cathode can and the anode can, and a positive terminal and a negative terminal that are fixed to the bottom surfaces of the cathode can and the anode can, respectively, and is characterized in that: when integrated with the anode can, the bottom surface of the cathode can is curved in a convex shape no more than 100 µm outward in the thickness direction; the positive terminal has a flat positive connecting part; the positive terminal is disposed along the radial direction of the bottom surface of the cathode can; and the positive connecting part is inclined such that, in a cross-sectional view following the radial direction and perpendicular to the bottom surface, the positive connecting part forms a tangent line to the bottom surface at a position other than the center of the bottom surface and is fixed to the bottom surface.
Inventors:
HIRAMATSU HIROTAKA (JP)
Application Number:
PCT/JP2022/008808
Publication Date:
September 22, 2022
Filing Date:
March 02, 2022
Export Citation:
Assignee:
SEIKO INSTR INC (JP)
International Classes:
H01M50/559; H01M50/109; H01M50/547; H01M50/566
Domestic Patent References:
| WO2003030281A1 | 2003-04-10 | |||
| WO2012132618A1 | 2012-10-04 |
Foreign References:
| JP2011210495A | 2011-10-20 | |||
| JP2011108551A | 2011-06-02 | |||
| JP2004327201A | 2004-11-18 | |||
| JP2011187407A | 2011-09-22 | |||
| JP2021042785A | 2021-03-18 | |||
| JP2010044906A | 2010-02-25 | |||
| JPS62157060U | 1987-10-06 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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