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Abstract <p>Catalytic graphitization of renewable biomass for the production of lithium-ion battery anode materials has garnered significant attention. However, commercialization of this technology remains limited by the suboptimal morphology and electrochemical properties of bio-graphite. This study presents a strategy to fabricate high-performance porous graphite from waste kudzu vine, utilizing catalysis by spent LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> (S-NCM) materials to lower production costs and enhance electrochemical characteristics. Electrochemical evaluation demonstrates that the synthesized porous graphite (PGC) exhibits outstanding rate performance (460.1 mAh·g<sup>−</sup>1 at 1 A·g<sup>−</sup>1) and impressive cycle stability (2000 cycles at 2 A·g<sup>−</sup>1). This work effectively harnesses resource waste, advancing biomass-derived materials research in energy storage and offering a novel approach for developing cost-effective, high-performance graphite materials.</p> Graphical Abstract <p></p>

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Modulation of intrinsic defect structures in bio-graphite for enhanced performance in lithium-ion battery anodes

  • 期刊论文

  • 发表日期：

    2025年7月22日

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  • Wentao Liu,
  • Huilong Dong,
  • Guangchang Yang,
  • Yanfang Wang,
  • Fangping Wang,
  • Feiyan Lai,
  • Jiawen Guo,
  • Xiaohui Zhang

摘要

Abstract

Catalytic graphitization of renewable biomass for the production of lithium-ion battery anode materials has garnered significant attention. However, commercialization of this technology remains limited by the suboptimal morphology and electrochemical properties of bio-graphite. This study presents a strategy to fabricate high-performance porous graphite from waste kudzu vine, utilizing catalysis by spent LiNi1/3Co1/3Mn1/3O2 (S-NCM) materials to lower production costs and enhance electrochemical characteristics. Electrochemical evaluation demonstrates that the synthesized porous graphite (PGC) exhibits outstanding rate performance (460.1 mAh·g−1 at 1 A·g−1) and impressive cycle stability (2000 cycles at 2 A·g−1). This work effectively harnesses resource waste, advancing biomass-derived materials research in energy storage and offering a novel approach for developing cost-effective, high-performance graphite materials.

Graphical Abstract