| abstract |
An outer sheath (1) for a lithium ion battery of the present invention comprises a first thermoplastic resin layer (11) having rigidity and chemical resistance and disposed on the outer side, a second thermoplastic resin layer (12) having overall stress and adhesion, A third adhesive layer 14 laminated on one side of the substrate layer 10 and a second adhesive layer 14 formed on one side of the substrate layer 10, A corrosion inhibiting treatment layer 16 laminated on the metal foil layer 15; an inner adhesive layer 17 laminated on the corrosion inhibiting treatment layer 16; And a laminated sealant layer (18). |