Negative electrode plate, testing method of active specific surface area of electrode plate, battery
US11283061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Apr 22, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2004/027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a battery and a testing method of an active specific surface area of an electrode plate. The battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte, the negative electrode plate comprises a negative current collector and a negative film, the negative film is provided on at least one surface of the negative current collector and comprises a negative active material, the negative active material comprises graphite, and an active specific surface area of the negative electrode plate is 1 cm2/g˜15 cm2/g. In the present disclosure, by reasonably controlling the active specific surface area of the negative electrode plate can make the battery have the characteristics of high energy density and excellent dynamics performance at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.