Methods of fabricating electrochemical cells
US6468690B1 · kind B1 · utility
17Cited by
6References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Mar 23, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4911
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Conditioning secondary lithium ion cells at elevated temperatures above ambient reduces the time required to complete this process and produces cells and batteries which demonstrate improved electrochemical performance. Conditioning includes subjecting an electrochemical cell to at least one full charge/discharge cycle whereby gases generated and removed before the cell is sealed and ready for use. The cell is placed in an environment that is maintained at a temperature of at least 30° C., charged and discharged, and sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.