Artificial graphite, secondary battery, method for the preparation thereof, and apparatus
US12021235B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Aug 31, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Dec 21, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application discloses an artificial graphite, a secondary battery, a preparation method and an apparatus. The artificial graphite includes secondary particles formed by agglomeration of primary particles, the artificial graphite having a volume average particle size Dv50, denoted as A, the artificial graphite through powder compaction under a pressure of 2000 kg having a volume average particle size Dv50, denoted as B, wherein A and B satisfies: B/A≥0.85. Using the artificial graphite provided by the present application can greatly reduce the cyclic expansion of the secondary battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.