Patent · US Active

Regenerated lithium-ion cathode materials having modified surfaces

US10777843B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

NISSAN NORTH AMERICA, INC. · US

Inventors

Hosop Shin · Carmel, US
Taehee Han · Farmington Hills, US

Key dates

Filing date	Oct 31, 2018
Grant date	Sep 15, 2020
Priority date	—
Expiry date	Mar 5, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH01M2300/008
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A regenerated cathode active material comprises a core material comprising lithium and a transition metal oxide, the core material having a surface, wherein the core material is a recycled cathode active material that has been re-lithiated. At least two different lithium-ion conducting species are on the surface of the core material, and the at least two different lithium-ion conducting species are selected from AlF3, Li3PO4, and a lithium metal oxide. Another regenerated cathode active material for use in a lithium-ion battery comprises a core material comprising a transition metal oxide and lithium, the core material having a surface, and multiple lithium-ion conducting species on the surface, wherein the core material is a recycled cathode active material that has been re-lithiated.

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