1篇
您的检索式：作者名="Nigel PBrandon"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Designer uniform Li plating/stripping through lithium–cobalt alloying hierarchical scaffolds for scalable high-performance lithium-metal anodes显示文摘Lithium metal anodes are of great interest for advanced high-energy density batteries such as lithiumair, lithium-sulfur and solid-state batteries, due to their low electrode potential and ultra-high theoretical capacity. There are, however, several challenges limiting their practical applications, which include low coulombic efficiency, the uncontrollable growth of dendrites and poor rate capability. Here, a rational design of 3D structured lithium metal anodes comprising of in-situ growth of cobalt-decorated nitrogen-doped carbon nanotubes on continuous carbon nanofibers is demonstrated via electrospinning.The porous and free-standing scaffold can enhance the tolerance to stresses resulting from the intrinsic volume change during Li plating/stripping, delivering a significant boost in both charge/discharge rates and stable cycling performance. A binary Co-Li alloying phase was generated at the initial discharge process, creating more active sites for the Li nucleation and uniform deposition. Characterization and density functional theory calculations show that the conductive and uniformly distributed cobalt-decorated carbon nanotubes with hierarchical structure can effectively reduce the local current density and more easily absorb Li atoms, leading to more uniform Li nucleation during plating. The current work presents an advance on scalable and cost-effective strategies for novel electrode materials with 3D hierarchical microstructures and mechanical flexibility for lithium metal anodes. | Xinhua Liu Xiaojuan Qian Weiqiang Tang Hui Luo Yan Zhao Rui Tan Mo Qiao Xinlei Gao Yang Hua Huizhi Wang Shuangliang Zhao Chao Lai Magda Titirici Nigel PBrandon Shichun Yang Billy Wub | 2021 | Journal of Energy Chemistry2021，30，1： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员