The electrode structure plays a pivotal role in controlling volume expansion and enhancing the performance of lithium-ion batteries, particularly in silicon-based anode materials. In this investigation, a direct ball-milling technique was employed to incorporate a steel-reinforced concrete structure into the electrode architecture, thereby establishing a conductive network utilizing various carbon nanotubes. This innovative approach not only effectively addresses the inherent conductivity challenges associated with silicon anodes but also demonstrates exceptional tensile strength. Consequently, it successfully alleviates electrode volume expansion and mitigates the structural collapse issues induced by the volumetric changes of silicon during cyclic processes. To systematically explore the effectiveness of different carbon nanotube types, four variations were compared. The charge-discharge characteristics of the electrodes were meticulously examined within the voltage range of 0.05-1.5V (vs. Li/Li+) using CR2025 button cells. Notably, the electrode featuring a conductive framework constructed from single-walled carbon nanotubes (SWCNT) exhibited remarkable electrochemical performance. It achieved a reversible capacity of 3153 mAh g−1 at a current of 200 mA g-1. Even under a challenging high current rate of 1800 mA g-1, the electrode maintained 83.25% capacity retention after 50 cycles. This study presents a practical and systematic strategy for the application of silicon anodes, particularly emphasizing the utilization of a conductive network with single-walled carbon nanotubes. Furthermore, a thorough analysis of the structural strength differences in conductive networks constructed from various materials is provided. This comprehensive investigation not only contributes valuable insights into enhancing silicon anode performance but also lays the foundation for understanding the nuances of different materials in constructing conductive networks, thereby advancing the field towards more efficient energy storage solutions.

硅，锂离子电池，碳纳米管，导电框架