Nanoarrays: design, preparation and supercapacitor applications

摘要: Increasing energy and power demands have continued to stimulate the development of new electrochemical storage devices. Supercapacitors, well-known systems characterized by a high density long cycle life, experienced rapid progress benefiting from fast advancements in electrode materials. However, for those conventional supercapacitors assembled through thin film preparation technique, conductive agent polymer binder will inevitably account large amount ‘dead volume’, which should be further diminished better design supercapacitor architecture. Here, we present comprehensive review on recent research integrated architectures, especially binder-free nanoarray electrodes. By means an integration highly-ordered active nanomaterials current collector, nanoarrays can provide larger surface area, faster electron-transport route, easier ion diffusion superior structural stability, thus leading substantially improved cycling rate performance. This work narrow its focus two independent aspects architectures: materials construction collectors. In addition, also discuss future directions remaining challenges advanced supercapacitors.