20-08-2018 дата публикации
Номер: KR1020180092819A
Принадлежит:
The present invention relates to a lead sealant film having a high adhesive property for sealing a gap between an electrode lead and a case and strongly resistant to modification and to a secondary battery using the same. According to the present invention, the lead sealant film comprises: a first layer including an acid-modified copolymer, an ethylene-based elastomer, and a low-density polyolefin; a second layer bonded onto the first layer and including an acid-modified copolymer, an ethylene-based elastomer, a low-density polyolefin, a cross-linking agent, and a phenol-based antioxidant; and a third layer bonded onto the second layer and including an acid-modified copolymer, an ethylene-based elastomer, and a vinyl-based copolymer, wherein the cross-linking agent includes at least one selected from the group consisting of trimethylolpropane methacrylate, pentaerythritol triacrylate, etching recall dimethacrylate, triallyl cyanurate, and triaryl isocyanurate. The phenol-based antioxidant ...
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