Our university’s research team on carbon nanomaterials and flexible energy devices, led by Professor Wu Ziping, has recently achieved significant progress in the field of flexible conductive materials. By utilizing a newly discovered continuum of carbon nanotubes and employing a layer-by-layer assembly technique, the team has successfully produced structurally aligned carbon nanotube film rolls. The resulting film measures 10.464 meters in length, 0.402 meters in width, and 14 micrometers in thickness. According to available records, this is the largest carbon nanotube film ever produced worldwide, earning it a Guinness World Record on October 31, 2025—a milestone that paves the way for its industrial applications.
Building on this foundational work, the team applied the film roll to electrode manufacturing, producing electrodes with an active material content exceeding 95%. These electrodes exhibit a charge transport capacity improved by several orders of magnitude, demonstrating outstanding potential for applications in electrochemical charge transfer. By integrating the film with lithium anode ion transport and atomic diffusion, the team developed a lithium-metal battery capable of enduring over 1,000 cycles at 5 C. These findings were published in Advanced Functional Materials (2025, 35, e26185). Furthermore, by coupling the film with an anode-free substrate defect strategy, the team created an anode-free lithium-metal battery with an energy density surpassing 300 Wh/kg, detailed in ACS Nano (2025, 19, 34942). Another study, focusing on interfacial layer construction for lithium anodes, yielded a battery that sustained over 1,000 cycles at 10 C, published in Advanced Functional Materials (2025, 35, e20538). Additionally, through in-situ polymerization of polymer monomer electrodes, the team achieved a solid-state lithium-metal battery that maintained over 1,000 cycles at 3 C, as reported in ACS Nano (2025, https://doi.org/10.1021/acsnano.5c19286).
Together, these studies highlight the considerable promise of carbon nanotube films for applications in both high-power-density and high-energy-density lithium batteries.
