Cathode material and manufacturing method thereof, lithium ion battery, and vehicle
US12145860B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jul 10, 2019 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jul 22, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode material, a preparation method thereof, a lithium ion battery and a vehicle are provided. The cathode material comprises elemental sulfur and secondary particles formed by packing primary particles, wherein the secondary particles have a hollow structure, and the elemental sulfur fills in gaps among the primary particles and in the hollow structure. The primary particles comprise a lithium oxide, wherein the lithium oxide comprises δLiNimConX(1-m-n)O2:(1−δ)Li2MO3, 0≤δ≤1, X comprises at least one selected from Mn, Al, Nb, and Fe, M comprises at least one of Mn, Al, Nb, Fe, Co, and Ni, 0≤m<1, 0≤n<1, and 0≤m+n<1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.