Method of sealing an ultracapacitor substantially free of water
US6364915B1 · kind B1 · utility
8Cited by
19References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Jul 24, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of sealing an ultracapacitor substantially free of water is disclosed. The method includes providing a multilayer cell comprising two solid, non porous current collectors, separated by two porous electrodes with a separator between the two electrodes, sealing the cell with a reclosable hermetic closure. Water inside the closure is dissociated by an applied voltage to the cell and escapes in the form of hydrogen and oxygen when the closure is unmated, the closure is then mated to hermetically seal the cell which is substantially free of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.