US 12,334,541 B2
Device for manufacturing electrode plate and method for manufacturing electrode plate
Tetsumasa Maruo, Hyogo (JP); and Tomofumi Hirukawa, Toyota (JP)
Assigned to Panasonic Holdings Corporation, Osaka (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi (JP)
Appl. No. 17/915,777
Filed by Panasonic Holdings Corporation, Osaka (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
PCT Filed Mar. 25, 2021, PCT No. PCT/JP2021/012559
§ 371(c)(1), (2) Date Sep. 29, 2022,
PCT Pub. No. WO2021/200546, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 2020-059675 (JP), filed on Mar. 30, 2020.
Prior Publication US 2023/0223513 A1, Jul. 13, 2023
Int. Cl. H01M 4/04 (2006.01); B30B 3/00 (2006.01); B65H 23/18 (2006.01); H01M 4/139 (2010.01)
CPC H01M 4/139 (2013.01) [B30B 3/00 (2013.01); B65H 23/18 (2013.01); H01M 4/04 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A manufacturing apparatus for an electrode plate, comprising:
a conveyance line of the electrode plate having an applied portion in which an electrode active material is applied to a surface of a base material and a non-applied portion in which the electrode active material is not applied to the surface;
a compression roll provided in the conveyance line and structured to compress the applied portion; and
a tension reducing mechanism provided in at least one of an upstream section ending at the compression roll or a downstream section starting at the compression roll in the conveyance line and structured to reduce a tension applied to the electrode plate,
wherein the manufacturing apparatus further comprises:
a stretching mechanism structured to stretch the non-applied portion at a position farther from the compression roll than the tension reducing mechanism in the conveyance line by applying, to the non-applied portion, a tension larger than the tension applied to the electrode plate in a section in which the tension is reduced by the tension reducing mechanism,
wherein the conveyance line includes an unwinding device that sends the electrode plate not subjected by the compression roll to a compression treatment of the applied portion to a downstream side of the conveyance line and includes a winding device that collects the electrode plate subjected to the compression treatment, and
wherein the tension reducing mechanism and the stretching mechanism are disposed at least in one of a section between the unwinding device and the compression roll or a section between the compression roll and the winding device.