Sealing body of tube-shaped battery and tube-shaped battery
US10629858B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Dec 9, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sealing body for sealing an upper opening of a battery can having a tube shape with a closed bottom includes an electrode terminal, a sealing plate, and gaskets. The electrode terminal includes a flat plate-shaped stepped portion in an area of a lower surface of a flat plate-shaped terminal portion. The electrode terminal has an inserting portion extending downward in a columnar shape on a lower surface of the stepped portion, and a protrusion in a non-circular planar shape that goes around the inserting portion. The sealing plate has an opening, and has an upper surface and a lower surface on which a non-circular sealing-plate recessed portion and a sealing-plate protruding portion are formed. The gaskets have a shaft portion inserted through the opening of the sealing plate, and a protruding portion that engages the sealing-plate recessed portion and a recessed portion that engages the sealing-plate protruding portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.