Abstract:
Cellulosic carbon materials show good potential for lithium-ion storage due to their abundant sources, low cost, and abundance of active sites. However, there are also problems such as high lithium storage potentials and poor electrical conductivity, which limit their application in practice. In this study, the electrical conductivity of cellulosic carbon materials was significantly enhanced by introducing a nickel-catalysed graphitization process, and exhibited a low lithium storage potential and a high proportion of embedding mechanism. The experimental results show that the material possesses high specific capacity, excellent multiplicative performance (the specific capacity remains at 70.8 mAh·g
−1 when the current density is increased to
5000 mA·g
−1), and excellent cycling stability (the capacity remains as high as 70.8 mAh·g
−1 after
1000 mA·g
−1 at
1000 mA·g
−1 current density after capacity remains high at 228.0 mAh·g
−1 after
1000 cycles at a current density of
1000 mA·g
−1). This study provides new ideas and important references for the development of high-performance and sustainable anode materials for lithium-ion batteries.