| 摘要 |
PURPOSE: A rolling device for a lithium ion secondary battery is provided to separate the rolled electrode assembly while preventing the deformation of the shape of an electrode assembly by applying air spray nozzles to a rolling core part. CONSTITUTION: A rolling device for a lithium ion secondary battery includes: a rolling core part(600) in which an electrode plate is rolled on the external surface and a plurality of nozzle parts(630) are formed; a driving part rotating the core part; and an air feed part supplying the air to a plurality of nozzle parts of the core part. The core part divides into a first core part(610) and a second core part(620). |
