Method of and apparatus for manufacturing lithium secondary cell
US7105253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Jul 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53135
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing a lithium secondary cell capable of preventing an active material layer from oxidation and moisture absorption is obtained. This method of manufacturing a lithium secondary cell comprises steps of forming an active material layer on a collector by a method supplying raw material through discharge into a vapor phase and holding the collector formed with the active material layer at least under an inert atmosphere or under a vacuum atmosphere up to preparation of the cell. Thus, the collector formed with the active material layer is prevented from exposure to the atmosphere, whereby the active material layer is prevented from oxidation and moisture absorption. Consequently, a lithium secondary cell having excellent characteristics can be prepared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.