US 11,990,599 B2
Method for producing a dry film, rolling device
Holger Althues, Dresden (DE); Sebastian Tschoecke, Dresden (DE); Benjamin Schumm, Dresden (DE); Stefan Kaskel, Dresden (DE); Christian Girsule, Dresden (DE); Daniel Jordan, Dresden (DE); and Kay Schoenherr, Dresden (DE)
Assigned to FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE); and TECHNISCHE UNIVERSITAT DRESDEN, Dresden (DE)
Appl. No. 16/613,138
Filed by FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE); and TECHNISCHE UNIVERSITAT DRESDEN, Dresden (DE)
PCT Filed May 14, 2018, PCT No. PCT/EP2018/062334
§ 371(c)(1), (2) Date Nov. 13, 2019,
PCT Pub. No. WO2018/210723, PCT Pub. Date Nov. 22, 2018.
Claims priority of application No. 10 2017 208 220.8 (DE), filed on May 16, 2017.
Prior Publication US 2021/0320288 A1, Oct. 14, 2021
Int. Cl. H01M 4/04 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/0435 (2013.01) [H01M 4/0404 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/58 (2013.01); H01M 4/623 (2013.01); H01M 4/662 (2013.01); H01M 10/0525 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for producing a dry film, in which
a dry powder mixture is processed into the dry film by a rolling device having a first roll and a second roll, wherein
the first roll has a higher rotational peripheral speed than the second roll and the dry film is supported on the first roll,
wherein a ratio of the rotational peripheral speed of the first roll to the rotational peripheral speed of the second roll of 10:5 to 10:1 is maintained, and
wherein the dry powder mixture contains polytetrafluoroethylene.