Active material, nonaqueous electrolyte battery, battery pack and vehicle
US10050266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2017 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Mar 10, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, there is provided an active material. The active material includes particles of a Na-containing niobium titanium composite oxide having an orthorhombic crystal structure. An intensity ratio I1/I2 is within a range of 0.12≤I1/I2≤0.25 in an X-ray diffraction pattern of the active material, according to X-ray diffraction measurement using a Cu-Kα ray. I1 is a peak intensity of a peak P1 that is present within a range where 2θ is 27° to 28° in the X-ray diffraction pattern of the active material. I2 is a peak intensity of a peak P2 that is present within a range where 2θ is 23° to 24° in the X-ray diffraction pattern of the active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.