Hardware and manufacturing methods to coat electrode materials to substrates in secondary ionic battery manufacturing process
US12291781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2024 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Apr 1, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M4/8896
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A counter-rotating roller system for coating electrode materials includes a roll-to-roll apparatus including a dispensing roller that selectively dispenses a conductive substrate from a substrate roll along a first direction towards a receiving roller. A counter-rotating roller module including a counter-rotating roller is stationarily positioned at a predetermined height over the conductive substrate. The direction of the tangential velocity of the counter-rotating roller at an interface between the counter-rotating roller and the conductive substrate is 180 degrees opposite the first direction of travel of the conductive substrate. The system further includes a continuous powder application module positioned on a feed side of the counter-rotating roller to continuously deposit a volume of a dry powder mixture on the conductive substrate prior to contact with the counter-rotating roller. A contact roller scraper contacting the counter-rotating roller removes powder particles from an outer surface of the counter-rotating roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.