| CPC H01M 50/566 (2021.01) [B32B 37/0053 (2013.01); H01M 10/0404 (2013.01); H01M 50/46 (2021.01); H01M 10/615 (2015.04)] | 12 Claims |
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1. A lamination device for bonding an electrode and a separator of an electrode assembly to each other, the lamination device comprising:
a transfer part configured to transfer the electrode assembly;
a heating roller part configured to heat the electrode assembly transferred by the transfer part; and
a rolling roller configured to roll the electrode assembly heated by the heating roller part so that the electrode and the separator are bonded to each other,
wherein the heating roller part comprises a plurality of heating rollers configured to press and heat a surface of the electrode assembly at the same time,
wherein the plurality of heating rollers sequentially press a same entire surface of the electrode assembly and simultaneously heat the same entire surface of the electrode assembly so that the electrode assembly gradually increases in temperature,
wherein the plurality of heating rollers have the same heating temperature or different heating temperatures,
wherein, when the plurality of heating rollers have the different heating temperatures, the heating temperature gradually increases from a heating roller that initially heats the electrode assembly to a heating roller that finally heats the electrode assembly,
wherein a plurality of blocking plates are located between the plurality of heating rollers, respectively, without covering upper or lower portions of the plurality of heating rollers, and the plurality of blocking plates are configured to prevent heat from being transferred between the plurality of heating rollers that are adjacent to each other,
wherein the lamination device further comprises an adjustment device configured to allow the plurality of heating rollers to move away from or return to an original position toward the electrode assembly, and
wherein the adjustment device is further configured to cause one or more of the plurality of heating rollers to be in contact with or be separated from the electrode assembly.
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