Method of manufacturing pouch-shaped battery cell comprising jig grading
US11075419B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Aug 27, 2018 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Dec 16, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing a pouch-shaped battery cell including a silicon-based negative electrode active material includes injecting an electrolytic solution into a pouch-shaped battery case, in which an electrode assembly is mounted, charging and discharging the pouch-shaped battery cell having the electrolytic solution injected thereinto (a primary formation step), placing the pouch-shaped battery cell in a jig configured to fix and press the pouch-shaped battery cell, and charging and discharging the pouch-shaped battery cell while pressure is applied to the pouch-shaped battery cell by the jig (a jig grading step).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.