Electrochemical stack device
US9920440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Apr 14, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an electrochemical device intended for the production of products through electrochemical reaction of reactants, said electrochemical device comprising a stack of electrochemical cells (10), each cell (10) comprising a structure (16), two bipolar plates (18a, 18b) shared with adjacent cells (10), a membrane/electrode assembly (20) and two intermediate elements (21, 22) arranged to carry a current and the reactants/products to/from the membrane/electrode assembly (20).According to the invention, said structure (16) of the cell (10) comprises a single frame (23) made in one piece, said frame (23) having upper and lower faces respectively arranged to form a plane contact with the bipolar plates (18a, 18b) disposed on either side of said frame (23), and a central opening (26) arranged to receive the membrane/electrode assembly (20) and the two intermediate elements (21, 22), said frame (23) comprising all the orifices (38, 40, 42, 44) necessary for feeding reactants and evacuating products, and housings (34, 54a, 58a, 60a) arranged to receive sealing means (36, 56a, 56b; 62a, 62b, 64a, 64b) ensuring the sealing of each reactant and product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.