US 12,136,727 B2
Systems for manufacturing a dry electrode
Frank Bogenstahl, Ahaus (DE); Rene Wolters, Stadtlohn (DE); Christoph Lansing, Vreden (DE); Kay Wolters, Stadtlohn (DE); Thomas Hackfort, Ahaus-Alstätte (DE); and Jörg Gottszky, Vreden (DE)
Assigned to Matthews International Corporation, Pittsburgh, PA (US)
Filed by Matthews International Corporation, Pittsburgh, PA (US)
Filed on Jun. 3, 2024, as Appl. No. 18/731,472.
Application 18/731,472 is a continuation of application No. 17/422,966, previously published as PCT/US2020/013531, filed on Jan. 14, 2020.
Claims priority of provisional application 62/793,333, filed on Jan. 16, 2019.
Prior Publication US 2024/0322115 A1, Sep. 26, 2024
Int. Cl. H01M 4/04 (2006.01); B05C 11/02 (2006.01); B22F 7/08 (2006.01); B29C 43/58 (2006.01); B29C 65/00 (2006.01); H01G 11/28 (2013.01); H01G 11/86 (2013.01)
CPC H01M 4/0435 (2013.01) [B05C 11/02 (2013.01); B22F 7/08 (2013.01); B29C 43/58 (2013.01); B29C 66/83411 (2013.01); H01G 11/86 (2013.01); H01M 4/0404 (2013.01); B05C 11/025 (2013.01); H01G 11/28 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A system for manufacturing a dry electrode for an energy storage device, comprising:
a first multi roll calendar comprising a first series of horizontally aligned rolls that include a first roll, a second roll, a third roll, and a final roll,
wherein the first and second rolls of the first series of rolls form a first film creation nip configured to receive first powder and compress the first powder into a first film; and
wherein the second and third rolls of the series of rolls form a first calendaring nip configured to receive the first film and compress the first film into a compressed first film;
a second multi roll calendar comprising a second series of horizontally aligned rolls that include a first roll, a second roll, a third roll, and a final roll,
wherein the first and second rolls of the second series of rolls form a second film creation nip configured to receive second powder and compress the second powder into a second film; and
wherein the second and third rolls of the second series of rolls form a second calendaring nip configured to receive the second film and compress the first film into a compressed second film;
wherein the first multi roll calendar and the second multi roll calendar are horizontally aligned such that the final roll of the first series of rolls and the final roll of the second series of rolls forms a lamination nip configured to simultaneously laminate the first film and the second film onto a current collector;
a current collector unwind station that provides the current collector to the lamination nip; and
a rewind station that winds the laminated current collector from the lamination nip onto a roll.