ROLL OF COMPOSITE POLYELECTROLYTE MEMBRANE

• Main Authors: IWANAGA KEIJI, OBAYASHI YOSHITAKA
• Format: Patent
• Language: English; Japanese
• Published: 16.09.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a roll of a composite polyelectrolyte membrane with suppressed swelling at the edges in the width direction.SOLUTION: A roll of a composite polyelectrolyte membrane includes a first layer including a polymer electrolyte, a second layer including a porous base material, and a third layer including a polymer electrolyte on a long strip-shaped base film in this order, and the widthwise length (W3) of the third layer is smaller than the widthwise length (W2) of the second layer.SELECTED DRAWING: Figure 1 【課題】幅方向端部の盛り上がりが抑制された、複合化高分子電解質膜のロール状物を提供する。【解決手段】長尺帯状の基材フィルム上に、高分子電解質を含む第１の層、多孔質基材を含む第２の層、高分子電解質を含む第３の層をこの順に有する複合化高分子電解質膜のロール状物であって、該第３の層の幅方向長さ（Ｗ３）が該第２の層の幅方向長さ（Ｗ２）より小さいことを特徴とする、複合化高分子電解質膜のロール状物。【選択図】図１