Negative active material for rechargeable lithium battery and rechargeable lithium battery including same
US12191489B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Mar 3, 2021 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Apr 30, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative active material for a rechargeable lithium battery includes a secondary particle in which a plurality of natural graphite primary particles are agglomerated, the plurality of primary particles including natural graphite, and the secondary particle including pores, and an amorphous carbon positioned in the pores, wherein an area of the amorphous carbon is about 10% to about 30% based on a total area of 100% of the negative active material, in a cross-section of the negative active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.