Affiliation:
1. Key Laboratory for Micro-Nano Materials for Energy Storage and Conversion of Henan Province College of Chemical and Materials Engineering Institute of Surface Micro and Nano Materials Xuchang University Xuchang 461000 P. R. China
2. Technology Department Tianneng New Energy (Huzhou) Co., Ltd. Huzhou 313000 P. R. China
3. School of Chemistry South China Normal University Guangzhou 510006 P. R. China
Abstract
Black phosphorus–carbon (BP–C) composite is a potential high‐energy anode material for lithium‐ion batteries (LIBs); however, the local stress concentration that occurs during lithiation/delithiation cycling leads to poor cycling performance. Herein, an electrochemically inactive TiP nanocrystal is used to reconstruct the BP–C composite via ball milling to form a BP–TiP–C multiphase structure with excellent lithium storage performance. The TiP intermediate optimizes the TiP–BP interface and relieves the local stress of the BP–TiP–C composite, thereby enhancing the electron transfer, structural stability, and utilization of the active material. This BP–TiP–C composite exhibits a high coulombic efficiency of 99.85%, an enhanced cyclic stability of 557.6 mAh g−1 after 1000 cycles with a 72.5% capacity retention at 2.0 A g−1, and an excellent rate performance of 548.2 mAh g−1 at 10.0 A g−1. Thus, this study not only provides a high‐energy BP–TiP–C material, but also offers new ideas for material synthesis to advance the research on BP‐based LIBs.