Method for manufacturing a positive electrode for a solid-state lithium microbattery
US11152605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2019 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Oct 20, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method for producing a positive electrode for a solid-state lithium microbattery comprising the following successive steps: supplying of a substrate made of ceramic, glass or silicon, locally covered with a metal layer, depositing of a cathodic layer made of a positive electrode material, for example made of mixed lithium oxide, the cathodic layer having a thickness greater than 1 μm, a first portion of the cathodic layer covering the substrate and a second portion of the cathodic layer covering the metal layer, intended to form the positive electrode, carrying out of a heat treatment at a temperature greater than or equal to 400° C., on the cathodic layer, in such a way as to crystallise the second portion of the cathodic layer in order to form a positive electrode, and in such a way as to delaminate the first portion of the cathodic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.