| 摘要 |
<p>[Problem] To provide an outer packaging material for a battery or capacitor which includes a base layer, a barrier layer, an adhesive layer and a sealant layer that are sequentially laminated and which has high adhesion between the barrier layer and the adhesive layer and a high moisture barrier property. [Means for Solution] An outer packaging material for a battery or capacitor, including a base layer, a barrier layer, an adhesive layer and a sealant layer which are sequentially laminated, the adhesive layer including a maleic anhydride-modified polypropylene, wherein ± and ², defined below, satisfy all the following conditions: ± ‰¥ 0.09; ² ‰¥ 10; and ±² ‰¤ 2.0; wherein ± represents a ratio (A 1790 /A 840 ) of a peak height (A 1790 ) at 1790 cm -1 to a peak height (A 840 ) at 840 cm -1 in infrared absorption spectrum of the maleic anhydride-modified polypropylene and ² represents a thickness of the adhesive layer in µm.</p> |
