Method of manufacturing nonaqueous electrolyte secondary battery
US10181619B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Sep 25, 2014 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | May 30, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An organic acid included in a nonaqueous electrolyte solution of a secondary battery is reduced. During preparation of a film-covered battery 1, the nonaqueous electrolyte solution is injected into an covering 5 of the film-covered battery 1 having an electrode including: the electrode active material, the binder, and the organic acid, the organic acid in the nonaqueous electrolyte solution is decomposed by electrical charging of a battery until a voltage level is equal to or above a decomposition voltage of the organic acid, and the gas that is produced by decomposition is degassed from the cut portion 6 of the covering 5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.