Electric energy storage device and method for manufacturing the same
US6726732B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2001 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Feb 16, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric energy storage device includes a first electrode, a gel type ionic conducting polymer electrolyte separator formed on the first electrode, and a second electrode corresponding to the first electrode. The energy storage device has an increased unit storage capacitance and more minimized size by using the gel type ionic conducting polymer electrolyte separator. Also, the energy storage device produces a reduced resistance by the gel type ionic conducting polymer electrolyte separator, such that the high frequency response characteristic is improved, the available frequency region is enlarged and the allowable ripple current is increased. A method for manufacturing the electric energy storage device includes the steps of: forming an ionic conducting polymer electrolyte separator including i) preparing common solvent for an electrolyte and for dissolving polymer and ii) dissolving polymer at least one selected from the group consisting of polymer of polyacrylate series, polyvinylidenefluoride, copolymer of polyvinylidenefluoride and polymer of polyether series in the common solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.