High-rate capability and long cycle life are currently the two most major challenges for high-power rechargeable batteries such as lithium-ion batteries (LIBs), sodium-ion batteries (SIBs). Developing electroactive materials with high-efficiency electron/ion transport network and robust mechanical stability is a key. Herein, we have successfully designed and fabricated 3D cross-linked nitrogen-doped carbon nanosheet frameworks with good interconnection and hierarchical nanostructures, and simultaneously decorated edge-enriched molybdenum disulfide (MoS[Formula: see text] nanoflakes inside the whole carbon scaffold via a salt template assisted confinement pyrolysis strategy, yielding the unique 3D carbon scaffold/MoS2 hybrids. In such a design, such hybrids not only facilitate lithium diffusion kinetics and efficient utilization of MoS2nanoflakes owing to much exposed edges and well interconnection between active components and carbon frameworks, but also provide highly efficient electron/ion transport pathway. When evaluated as anode for lithium storage, the obtained products show superior rate capability of 284 mAh g[Formula: see text] up to 5 A g[Formula: see text] and long-term cycling stability. This work demonstrates an efficient solution to design and construct a high-efficiency electron/ion transport network for high-power applications for energy storage devices.

中文翻译：

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工程边缘暴露的 MoS2 纳米薄片锚定在 3D 交联碳框架上，以增强锂存储

高倍率能力和长循环寿命是目前锂离子电池（LIBs）、钠离子电池（SIBs）等大功率可充电电池面临的两大挑战。开发具有高效电子/离子传输网络和强大机械稳定性的电活性材料是关键。在此，我们成功设计并制造了具有良好互连性和分级纳米结构的 3D 交联氮掺杂碳纳米片框架，同时通过盐在整个碳支架内装饰了边缘富集的二硫化钼（MoS[公式：见正文]纳米片）模板辅助限制热解策略，产生独特的 3D 碳支架/MoS2杂种。在这样的设计中，这种混合物不仅促进锂扩散动力学和 MoS2 的有效利用2纳米薄片由于大量暴露的边缘和活性成分与碳框架之间的良好互连，还提供了高效的电子/离子传输途径。当作为锂存储负极进行评估时，所获得的产品表现出优异的倍率性能，最高可达 284 mAh g[公式：见正文]，最高可达 5 A g[公式：见正文]，并具有长期循环稳定性。这项工作展示了一种有效的解决方案，可以为储能设备的大功率应用设计和构建高效电子/离子传输网络。