BN nanosheets in-situ mosaic on MOF-5 derived porous carbon skeleton for high-performance lithium-ion batteries

Graphite anode (specific capacity is only 372 mA h g −1 ) for lithium-ion batteries (LIBs) is not enough for high energy and high power density demands. In this work, MOF-5 was used as a precursor to prepare a porous carbon material embedded with BN (Boron Nitride), while B and N elements will enhance the electron transport speed thus improving the conductivity simultaneously. A large specific surface area of 1790.19 m 2  g −1 was provided with this material because of embedding of lamellar BN, therefore it caused excellent cycling stability and high capacity characteristics in LIBs. The capacity retention is 1290 mA h g −1 at 200 mA g −1 and 683 mA h g −1 at 2000 mA g −1 . This material provides a solution for improving the performance of LIBs, and it can also be a reference for the development in other fields.