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LiFePO4现在还能发nano letter，我们还有希望！！12/19/2012刚接收的文章 已有13人参与
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http://pubs.acs.org/doi/abs/10.1021/nl304104q Architecturing Hierarchical Function Layers on Self-Assembled Viral Templates as 3D Nano-Array Electrodes for Integrated Li-ion Microbatteries Abstract This work enables an elegant bottom-up solution to engineer 3D macro-batteries as integral power sources for micro-electronics. Thus, multilayer functional materials were hierarchically architectured over Tobacco mosaic virus (TMV) templates that were genetically-modified to self-assemble in a vertical manner on current-collectors, so that optimum power and energy densities accompanied with excellent cycle-life could be achieved on a minimum footprint. The resultant micro-battery based on self-aligned LiFePO4 nanoforests of shell-core-shell structure, with precise arrangement of various auxiliary material layers including a nanometallic central core as direct electronic pathway to current collector, delivers excellent power and energy density as well as stable cycling stability that are only rivaled by the best Li-ion batteries of conventional configurations while providing rate performance per foot-print and on-site manufacturability unavailable from the latter. This approach could open a new avenue for micro-electromechanical systems (MEMS) applications, which would significantly benefit from the concept that electrochemically active components be directly engineered and fabricated as an integral part of the integrated circuit (IC). |
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