Non-aqueous electrolyte secondary battery
US10374225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2016 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Apr 28, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A non-aqueous electrolyte secondary battery includes: a negative electrode active material represented by the Formula (1)=α (Si material)+β (carbon material), wherein the Si material is one or more kinds selected from the group consisting of SiOx that is a mixture of amorphous SiO2 particles and Si particles and a Si-containing alloy; α and β represent % by mass of each component in the layer; and 80≤α+β≤98, 0.1≤α≤40, and 58≤β≤97.9 are satisfied, and a difference between the maximum value and the minimum value of an area proportion (%) of a binder in an area of the field of view of each image of cross-sections of the layer in a case where a plurality of arbitrary places is selected in a plane of the negative electrode active material layer is within 10%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.