Negative electrode active material for electrochemical device, negative electrode including the negative electrode active material and electrochemical device including the same
US11335909B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Oct 30, 2018 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Oct 13, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative electrode active material for an electrochemical device which has improved quick charging characteristics. The negative electrode active material includes two types of graphite particles having a different particle diameter and shows a bimodal distribution, wherein the ratio of the average particle diameter (D50) of the first graphite particles to the average particle diameter (D50) of the second graphite particles is larger than 1.7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.