Method for producing porous electrodes for electrochemical cells
US11581526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2019 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Aug 7, 2039 |
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 a method for producing an electrochemical cell comprising at least one porous electrode (2′), the method comprising at least the following method steps: (a) providing an electrode composition in the form of a homogeneous mixture comprising (i) at least one particulate active material (3); (ii) at least one particulate binder (5); (iii) at least one particulate pore-forming agent (4); and (iv) optionally at least one conducting additive (6); (b) forming a mouldable mass from the electrode composition; (c) applying the electrode composition to at least one surface of a substrate (1) to obtain a compact electrode (2); (d) producing an electrochemical cell comprising at least one compact electrode (2) which comprises the electrode composition according to method step (a); and (e) heating the at least one compact electrode (2) to liquefy the at least one particulate pore-forming agent (4); and/or (f) bringing the compact electrode (2) into contact with at least one liquid electrolyte composition or at least one liquid constituent of an electrolyte composition for an electrochemical cell which is capable of at least partially dissolving the at least one particula…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.