| abstract |
The exterior material for a lithium ion battery of the present invention comprises a laminate in which an adhesive layer, an undercoat layer, an aluminum foil layer, an anti-corrosion treatment layer, an adhesive resin layer, and a sealant layer are sequentially laminated on one surface of a substrate layer And an exterior material for a lithium ion battery. The undercoating layer contains the following component (A), the following component (B) and the following component (C). The total amount of the component (B) and the component (C) relative to 100 parts by mass of the component (A) is 200 to 12000 parts by mass. (A) A crosslinked resin formed from a resin (A1) having at least two nitrogen-containing functional groups and a resin (A2) having a reactive functional group reactive with the nitrogen-containing functional group. (B) Rare earth element oxides. (C) Phosphoric acid or phosphate. |