Battery with trench structure and fabrication method thereof
US6495283B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Feb 11, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a battery having a trench structure which can increase an effective area per unit area, and a fabrication method therefor. The battery according to the present invention forms trenches on thin film elements including a substrate, thereby increasing a contact interface between a cathode and an electrolyte and between the electrolyte and an anode, and simultaneously increasing an amount of an electrode per unit area. As a result, the present invention provides a high performance battery that a current density and a total current storage density are increased, and a charging speed after discharge is improved. The trench structure of the present invention can adapt to a bulk battery as well as a thin film battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.