Electrode mixture production method, electrode mixture, electrode, and lithium-ion battery
US12347867B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2022 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Feb 12, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method in which both the suppression of granulation of an active material and the acceleration of production steps are achieved when producing an electrode mixture containing a coated active material. The method comprises dropletizing a slurry containing an active material and a coating liquid to obtain slurry droplets, gas-flow drying the slurry droplets in a heating gas to obtain a first and a second precursor, and firing the first and the second precursor to obtain a first and second particle, wherein the first precursor contains the active material and a component from the coating liquid, the second precursor is free of the active material and contains a component from the coating liquid, the first particle has the active material and a coating layer, and the second particle is free of the active material and contains a component same as that constituting the coating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.