Achieving High-Energy Full-Cell Lithium-Storage Performance by Coupling High-Capacity V₂O₃ with Low-Potential Ni₂P...

To optimize the potential window and maximize the utilization of the capacity of both negative and positive electrodes, rational design of electrode materials are critically important in full-cell construction of rechargeable batteries. In this work, we propose and fabricate a carbon-confined V₂O₃/Ni₂P/C composite structure for excellent performance lithium ion batteries by taking advantage of the high capacity of V₂O₃ and low potential of Ni₂P. The full cell constructed with V₂O₃/Ni₂P/C as anode and commercial LiMn₂O₄ as cathode offers a record high energy density of 361.5 Wh kg^-1 and excellent cycle stability, outperforming the state-of-the-art work reported in literature.