象在使小型化的电子设备的精力存储单位潜在的平面 micro-supercapacitors 表演伟人。不对称的结构广泛地在 micro-supercapacitors 被调查了,并且基于碳的材料通常在电极被使用。在 micro-supercapacitors 在两个电极集成不同金属氧化物,批评挑战是配对不同感应电的金属氧化物。此处,我们建议匹配充分集成于由一个灵巧、可控制的制造过程的一高效的不对称的 micro-supercapacitor 的二感应电的材料的电压和电容的策略。制作 micro-supercapacitors 作为积极活跃材料和 Fe 22> O 3 作为否定活跃材料分别地。平面不对称的 micro-supercapacitors 拥有 60 F 的一个高电容??
Planar micro-supercapacitors show great potential as the energy storage unit in miniaturized electronic devices. Asymmetric structures have been widely inves- tigated in micro-supercapacitors, and carbon-based materials are commonly applied in the electrodes. To integrate different metal oxides in both electrodes in micro-supercapacitors, the critical challenge is the pairing of different faradic metal oxides. Herein, we propose a strategy of matching the voltage and capadtance of two faradic materials that are fully integrated into one high-performance asymmetric micro-supercapacitor by a facile and controllable fabrication process. The fabricated micro-supercapacitors employ MnO2 as the positive active material and Fe203 as the negative active material, respectively. The planar asymmetric micro-supercapacitors possess a high capacitance of 60 F-cm-3, a high energy density of 12 mW.h.cm-3, and a broad operation voltage range up to 1.2 V.