文章基本信息

标题：Integrated Solid/Nanoporous Copper/Oxide Hybrid Bulk Electrodes for High-performance Lithium-Ion Batteries
本地全文：下载
作者：Chao Hou ; Xing-You Lang ; Gao-Feng Han 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2013
卷号：3
期号：1
DOI：10.1038/srep02878
语种：English
出版社：Springer Nature
摘要：Nanoarchitectured electroactive materials can boost rates of Li insertion/extraction, showing genuine potential to increase power output of Li-ion batteries. However, electrodes assembled with low-dimensional nanostructured transition metal oxides by conventional approach suffer from dramatic reductions in energy capacities owing to sluggish ion and electron transport kinetics. Here we report that flexible bulk electrodes, made of three-dimensional bicontinuous nanoporous Cu/MnO₂ hybrid and seamlessly integrated with Cu solid current collector, substantially optimizes Li storage behavior of the constituent MnO₂. As a result of the unique integration of solid/nanoporous hybrid architecture that simultaneously enhances the electron transport of MnO₂, facilitates fast ion diffusion and accommodates large volume changes on Li insertion/extraction of MnO₂, the supported MnO₂ exhibits a stable capacity of as high as ~1100 mA h g⁻¹ for 1000 cycles, and ultrahigh charge/discharge rates. It makes the environmentally friendly and low-cost electrode as a promising anode for high-performance Li-ion battery applications.