Red phosphorus (RP) is an ideal anode for fast-charging lithium-ion batteries due to its high capacity (2596 mA h g⁻¹) and suitable lithiation potential (0.7 V vs. Li/Li⁺). We embedded amorphous soft RP nanoparticles in the hard and micro-sized TiN nanosheet as well as CNT via high-energy ball milling, thus, TiP₂ layer was fabricated at the interface of RP and TiN. This in-situ formed conductive TiP₂ substantive layer enhances Li⁺ diffusion, improves the interfacial stability of RP, and inhibits the side reaction between P and electrolytes. Thus the RP/TiN/CNT electrode shows excellent fast-charging and long-term cycling performances, such as, a high fast-charging retention of 92.6% from the 5^th to 200^th cycles with charging current density of 8 A g^‒1 (= 3 C rate, about 3 min) and discharging current density of 0.15 A g^‒1, and a 96.9% capacity retention from 3^rd to 850^th cycles at 2.3 A g^‒1.

红磷（RP）具有高容量（2596 mA hg ^-1）和合适的锂化电势（0.7 V vs. Li / Li ⁺），是快速充电锂离子电池的理想阳极。我们通过高能球磨将非晶态的软质RP纳米粒子嵌入到硬而微米级的TiN纳米片以及CNT中，从而在RP和TiN的界面处制备了TiP ₂层。此原位形成的导电TiP ₂实质层可增强Li ⁺扩散，提高了RP的界面稳定性，并抑制了P与电解质之间的副反应。因此，RP /锡/ CNT电极显示出优异的快速充电和长期循环性能，如，高的快速充电的92.6％保留从5^个到200^个周期与充电8甲克的电流密度^-1（= 3 C速率大约3分钟）和放电的0.15 A克电流密度^-1，和从3 96.9％的容量保持率^RD至850^个在2.3克周期^-1。