title: Assembly of graphene sheets into hierarchical structures for high-performance energy storage.
abstract: The electrodes with the hierarchical nanoarchitectures could offer a huge increase in energy storage capacity. However, the ability to achieve such hierarchical architectures on a multiple scale still has remained a great challenge. In this paper, we report a scalable self-assembly strategy to create bioinspired hierarchical structures composed of functionalized graphene sheets to work as anodes of lithium-ion batteries. The resulting electrodes with novel multilevel architectures simultaneously optimize ion transport and capacity, leading to a high performance of reversible capacity of up to 1600 mAh/g, and 1150 mAh/g after 50 cycles. Importantly, the process to fabricate such hierarchical structures is facile, low-cost, green, and scalable, providing a universal approach for the rational design and engineering of electrode materials with enhanced performance, and it may have utility in various applications, including biological scaffold, catalysis, and sensors.
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore.
authors.forename: Shengyan
authors.initials: S
authors.lastname: Yin
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Junhua
authors.initials: J
authors.lastname: Kong
authors.forename: Changji
authors.initials: C
authors.lastname: Zou
authors.forename: Chang Ming
authors.initials: CM
authors.lastname: Li
authors.forename: Xuehong
authors.initials: X
authors.lastname: Lu
authors.forename: Jan
authors.initials: J
authors.lastname: Ma
authors.forename: Freddy Yin Chiang
authors.initials: FY
authors.lastname: Boey
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Chen
mesh_terms: D011211:Electric Power Supplies; D004566:Electrodes; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006108:Graphite / Q000737:chemistry*; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*
chemical_list: D008567:Membranes, Artificial; D006108:Graphite