Slurry coating methode for secondary cell and secondary cell manufactured using the same
The present invention relates to a slurry coating method for a secondary battery which is a slurry coating method for coating an active material on an electrode substrate of a secondary battery. The method comprises the steps of: transferring a film-shaped electrode substrate into a space between a...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | The present invention relates to a slurry coating method for a secondary battery which is a slurry coating method for coating an active material on an electrode substrate of a secondary battery. The method comprises the steps of: transferring a film-shaped electrode substrate into a space between a slurry discharging unit and a coating roll; coating the active material on the electrode substrate by discharging slurry to the transferred electrode substrate; and drying the coated active material. A closed-shaped uncoated unit, in which a surrounding unit is surrounded by the active material by intermittent coating and multi-heat intermittent coating in the active material coating step, is formed.
본 발명의 이차전지용 슬러리 코팅방법은, 이차전지의 전극 기재에 활물질을 코팅하기 위한 슬러리 코팅방법으로서, 소정의 간격으로 이격된 슬러리 토출부와 코팅 롤 사이의 공간으로 필름 형태의 전극 기재를 이송시키는 단계와, 상기 이송된 전극 기재에 슬러리를 토출하여 전극 기재 위에 활물질을 코팅하는 단계와, 상기 코팅된 활물질을 건조하는 단계를 포함하고, 상기 활물질을 코팅하는 단계에서 간헐 코팅 및 다열 간헐 코팅에 의하여 주변부가 활물질로 둘러싸여진 폐쇄된 형상의 무지부가 형성되는 것을 특징으로 한다. |
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