生物衍生硬碳是一种经过验证的钠离子电池（SIB）负极材料。在本研究中，我们报道了通过热解甘蔗渣（一种丰富的生物废物）合成用于SIB的碳质阳极材料。甘蔗渣含有富含碳的化合物，例如半纤维素、木质素和纤维素，其防止热解时碳的石墨化。所制备的材料是高度无序的、多孔的片状结构，并且具有增强的晶面间距，有利于更快的钠离子传输和增强的钠存储，正如在 900 °C 热解的硬碳 (SW 900) 的优异电化学特性所证明的那样25 mAg −1时第二循环最高放电容量为 300 mAhg −1。即使在100 mAg -1下对SW 900进行300次循环后，仍发现容量超过65%。这证实了甘蔗废料是适合 SIB 应用的硬碳阳极材料。详细研究了硬碳对坡度和高原容量的钠存储机制。

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Bio-derived Hard Carbon is a proven negative electrode material for sodium ion battery (SIB). In the present study, we report synthesis of carbonaceous anode material for SIBs by pyrolyzing sugarcane bagasse, an abundant biowaste. Sugarcane bagasse contains carbon-rich compounds e.g., hemicellulose, lignin and cellulose which prevent graphitization of carbon on pyrolysis. The prepared material is highly disordered, porous with flake-like structures and has enhanced interplanar spacing which facilitate the faster Na ion transport and enhanced sodium storage as evidenced by the excellent electrochemical characteristics of the hard carbon pyrolyzed at 900 °C (SW 900) showing highest 2nd cycle discharge capacity of 300 mAhg−1 at 25 mAg−1. Even after subjecting the SW 900 for 300 cycling at 100 mAg−1, the capacity of over 65% is found. This confirms sugarcane waste as a suitable hard carbon anode material for SIB application. The sodium storage mechanism of the hard carbon contributing to the slope and the plateau capacity has been studied in detail.