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February 21, 2014

VIP: Three-Dimensional Structural Engineering for Energy-Storage Devices: From Microscope to Macroscope

Jing Xu, Xianfu Wang, Xiaowei Wang, Di Chen,* Xiaoyuan Chen, Dongdong Li* and Guozhen Shen*

As typical energy-storage devices (ESDs), supercapacitors and Li-ion batteries have attained great research attention for their excellent electrochemical energy-storage performance and low cost. This article aims to review the recent achievements in these ESDs from three aspects: 3D active materials, 3D current collectors, and 3D device integrations, along the line of microscope to macroscope. The structural engineering in each section is categorized and summarized based on the results in the literature, shedding light on the importance of advanced architecture. In addition, some possible research trends about ESD configurations and an optimistic outlook are also proposed.

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