Molecular-Level Encapsulation Strategy: Host-Guest-Inclusion-Complex-Derived Carbon-Encapsulated Nanocomposites for High Performance Lithium-Ion Storage

The carbon encapsulation in a pomegranate manner effectively avoids inner-active pulverization and perfectly provides electronic transmission network during lithiation and delithiation for high performance lithium-ion batteries. Carbon-encapsulated homogeneous nanocomposites derived from host-guest inclusion are first realized based on molecular-level encapsulating of beta-cyclodextrin. On the basis of this unique arrangement, lamellar nanosheet anodes are further prepared using a freeze-drying method for favoring Li-ion migration. As results of this design, large reversible capacity, high rate capability, and excellent cycling stability are achieved simultaneously. This host-guest encapsulation at the molecular scale offers a new and effective way for the development of carbon encapsulation electrode materials.

Automated summary

The carbon encapsulation in a pomegranate manner effectively enhances the performance of lithium-ion batteries by providing a perfect electronic transmission network while avoiding inner-active pulverization. This approach of host-guest encapsulation at the molecular scale offers a new and effective way for the development of carbon encapsulation electrode materials, leading to large reversible capacity, high rate capability, and excellent cycling stability in the resulting nanocomposites.