Gas removal device for secondary battery, and gas removal method using same
US11973242B2 · kind B2 · utility
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14Claims
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Assignee
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Key dates
| Filing date | Jul 22, 2020 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | Feb 13, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A degassing apparatus for a secondary battery, and a degassing method using same, is provided. The degassing apparatus includes a drive motor and a jig arm configured to pressurize a first surface of a gas pocket of a battery cell and a second surface opposite the first surface by controlling a separation distance by the operation of a driving motor. The degassing apparatus is capable of performing an effective degassing and sealing process for the battery cell without positional movement of the battery cell during cell activation or after cell activation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.