Patent · US Active

Positive electrode material and preparation method therefor, lithium ion battery and vehicle

US12145859B2 · kind B2 · utility

0Cited by

1References

18Claims

0Family size

Assignee

BYD Company Limited · CN

Inventors

Dongjie HU · Lo Wu, CN
Hao-Ming Wei · Beijing, CN

Key dates

Filing date	Jul 10, 2019
Grant date	Nov 19, 2024
Priority date	—
Expiry date	Oct 6, 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 cathode material particles comprising a central area, and a surface layer area, wherein the central area comprises lithium oxide, and the surface layer area comprises lithium oxide and elemental sulfur, in which the lithium oxide comprises δLiNimConX(1-m-n)O2·(1−δ)Li2MO3, where 0≤δ≤1, X comprises at least one selected from Mn, Al, Nb, and Fe, M comprises at least one selected from Mn, Al, Nb, Fe, Co, and Ni, 0≤m<1, and 0≤n<1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.