Hard carbons derived from glucose and glucosamine are synthesized via microwave-assisted hydrothermal carbonization (HTC) and subsequent pyrolysis treatment to be used as anode materials for lithium-ion batteries (LIBs). Related to the limited lithium ion intercalation to graphite (LiC₆) resulting relatively low theoretical capacity (372 mAh/g), silicon is considered as one of the most appealing anode materials for LIBs by exhibiting very high theoretical capacity (3578 mAh/g, based on Li₁₅Si₄). However, silicon suffers from huge volume expansion during intercalation of lithium ions which causes rapid capacity fading. One of the most practical strategy to suppress this problem is to coat the silicon nanoparticles with carbonaceous materials. Herein, silicon is coated via microwave-assisted hydrothermal carbonization method in the presence of glucose or glucosamine which are then further pyrolyzed at 750 °C to obtain silicon-carbon composite anodes. Composite containing glucosamine (Si-GA-C-750) enables N-doped carbon evidenced by EDX and XPS analyses which contributes to obtain much enhanced electrochemical properties than that of glucose containing composite (Si-G-C-750). Additionally, higher Li⁺ diffusion coefficient and smaller resistance values attest the advantageous nature of the N-doped anode material.

通过微波辅助水热碳化（HTC）和随后的热解处理合成了葡萄糖和氨基葡萄糖衍生的硬碳，用作锂离子电池（LIB）的负极材料。与有限的锂离子嵌入石墨（LiC ₆）从而导致相对较低的理论容量（372 mAh / g）有关，硅具有很高的理论容量（3578 mAh / g），被认为是LIB最具吸引力的阳极材料之一，基于Li ₁₅ Si ₄）。然而，硅在锂离子的嵌入期间遭受巨大的体积膨胀，这导致快速的容量衰减。抑制该问题的最实用策略之一是用碳质材料涂覆硅纳米颗粒。本文中，在葡萄糖或葡糖胺的存在下通过微波辅助水热碳化法涂覆硅，然后将其在750℃下进一步热解以获得硅-碳复合阳极。含有葡萄糖胺的复合材料（Si-GA-C-750）能够实现EDX和XPS分析证明的N掺杂碳，与含葡萄糖的复合材料（Si-GC-750）相比，其电化学性能大大提高。此外，较高的Li ⁺ 扩散系数和较小的电阻值证明了N掺杂阳极材料的优势。