Nonaqueous electrolyte battery, battery pack and positive electrode
US10541398B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2017 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jan 4, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode, a negative electrode, a nonaqueous electrolyte and a separator. The positive electrode includes a positive electrode active material containing LixNi1−a−bCoaMnbMcO2 (0.9<x≤1.25, 0<a≤0.4, 0≤b≤0.45, 0≤c≤0.1, and M represents at least one element selected from the group consisting of Mg, Al, Si, Ti, Zn, Zr, Ca, and Sn). The separator includes polyester. A pore volume in a pore size distribution according to a mercury intrusion porosimetry is in a range of 0.9 cm3/g to 3 cm3/g. An air permeability value according to a Gurley method is in a range of 2 sec/100 ml to 15 sec/100 ml.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.