Eliminating the usage of metal current collectors and binders in traditional battery electrode configuration is an effective strategy to significantly improve the capacities of lithium ion batteries (LIBs). Herein, we demonstrate the construction of porous vanadium nitride (VN) nanosheet network in situ grown on nitrogen-rich (N-rich) carbon textile (N-C@P-VN) as lightweight and binder-free anode for LIBs. The N-rich carbon textile is used both as the current collector and host to store Li⁺, thus improving the specific capacities of binder-free VN anode and meanwhile reducing the inert mass of the whole cell. Moreover, the open spaces in carbon textile and vertically aligned pores in VN nanosheet network can not only provide an expressway for Li⁺ and e⁻ transport, but also afford more active sites. As a result, the binder-free N-C@P-VN anode maintains a specific capacity of 1,040 mAh·g⁻¹ (or an areal capacity of 2.6 mAh·cm⁻²) after 100 cycles at 0.1 mA·cm⁻² in half cell. Moreover, in an assembled N-C@P-VN//LiFePO₄ full cell, it exhibits an areal capacity of 1.7 mAh·cm⁻² after 300 cycles at 0.1 C. The synergistic strategy of N-C substrate and porous VN network could be applied to guide rational design of similar N-C@nitride or sulfide hybrid systems with corresponding sulfur-doped carbon textile as the substrate.

在传统的电池电极配置中消除金属集流体和粘合剂的使用是显着提高锂离子电池（LIBs）容量的有效策略。在此，我们展示了在富氮（N-rich）碳织物（NC@P-VN）上原位生长的多孔氮化钒（VN）纳米片网络的构建，作为LIB的轻质无粘合剂阳极。富氮碳织物既用作集电器又用作储存Li ^{+ 的}主体，从而提高了无粘合剂VN负极的比容量，同时降低了整个电池的惰性质量。此外，碳织物中的开放空间和 VN 纳米片网络中垂直排列的孔隙不仅可以为 Li ⁺和 e⁻运输，但也提供更活跃的站点。因此，无粘合剂的 NC@P-VN 负极在 0.1 mA·cm ^{-2 下}循环 100 次后仍保持 1,040 mAh·g ^-1的比容量（或 2.6 mAh·cm ^-2的面积容量）。细胞。此外，在组装的 NC@P-VN//LiFePO ₄全电池中，在 0.1 C 下循环 300 次后，其面积容量为 1.7 mAh·cm ^-2。NC衬底和多孔 VN 网络的协同策略可应用于指导以相应的掺硫碳织物为基材的类似 NC@氮化物或硫化物混合系统的合理设计。