Positive electrode active material for non-aqueous electrolyte secondary batteries, production method therefor, and non-aqueous electrolyte secondary batteries using said positive electrode active material
US11637284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2018 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | May 4, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a positive electrode active material for non-aqueous electrolyte secondary batteries for making high capacity and high output compatible, non-aqueous electrolyte secondary batteries, having the positive electrode active material adopted thereto, and a production method for a positive electrode active material in which the positive electrode active material can be easily produced in an industrial scale. A positive electrode active material for non-aqueous electrolyte secondary batteries, contains: primary particles of a lithium nickel composite oxide represented by at least General Formula: LizNi1-x-yCoxMyO2 (0.95≤z≤1.03, 0<x≤0.20, 0<y≤0.10, x+y≤0.20, and M is at least one type of element selected from Mg, Al, Ca, Ti, V, Cr, Mn, Nb, Zr, and Mo); and secondary particles configured by flocculating the primary particles, wherein an LiAl compound and an LiW compound are provided on surfaces of the primary particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.