A quasi-solid-state micro-supercapacitor with cellular graphene film as the active material and polyvinyl alcohol/H₃PO₄ as the gel electrolyte is demonstrated as a new type of flexible energy storage device. The 3D porous graphene films not only serve as high performance supercapacitor electrodes, but also provide an abundant ion reservoir for the gel electrolyte. The quasi-solid-state micro-supercapacitor exhibits excellent electrochemical performance.

中文翻译：

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基于细胞石墨烯薄膜的柔性准固态平面微型超级电容器

以蜂窝状石墨烯薄膜为活性材料，以聚乙烯醇/ H ₃ PO ₄为凝胶电解质的准固态微型超级电容器已被证明是一种新型的柔性储能装置。3D多孔石墨烯膜不仅可以用作高性能超级电容器电极，还可以为凝胶电解质提供丰富的离子库。准固态微型超级电容器具有出色的电化学性能。