Weaving ZIF-67 by employing carbon nanotubes to constitute hybrid anode for lithium ions battery

Abstract In this work, the highly uniform hybrid nanoporous carbons (HPCs) have been prepared by employing chemical vapor deposition (CVD) approach to grow carbon nanotubes (CNTs) on Zeolitic Imidazolate Frameworks (ZIF-67) and then subjected to anode for lithium ion batteries (LIBs). In terms of HPCs, CNTs act as bridge linking NPCs, resulting in net-work structure and thus improved conductivity. When employed as anode material for lithium ion batteries (LIBs), the HPCs deliver a high initial capacity of 677 mAh/g at current density of 50 mAh/g. Significantly, the capacity can be maintained at 312 mAh/g after 100 cycles, exhibiting 46% remaining. Even at high charge rate of 1.0 A/g, a decent capacity of 261.3 mAh/g can still be achieved, exhibiting excellent cycling stability.