Nano-based gas diffusion media
US7785748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2007 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Apr 2, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to novel methods for producing a nano-porous gas diffusion media, compositions thereof, and devices comprising the same. The nano-porous gas diffusion media of the invention is produced using photolithographic techniques to create a solid substrate comprising a plurality of nano-scale (1 nm-300 μm) pores or holes that allow for the diffusion or exchange of molecules, gases, and/or liquids through the substrate. The nano-porous diffusion media of the invention also displays superior electro- and thermal conductivity, and increased durability and performance. In some embodiments, the nano-porous diffusion media of the invention is also coated with a self-assembling monolayer (SAM) of organic molecules to further improve its physical characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.