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- W2904139917 abstract "Spherical FePO4 and three-dimensional porous graphene (3DG) were prepared by hydrothermal synthesis, then LiFe0.98V0.02PO4/3DG/C composite was prepared by two-step sintering method based on FePO4/3DG. The structure, composition and morphology of the synthesis production were confirmed by X-ray diffraction (XRD), Raman spectra, Energy Dispersive Spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The electrochemical properties were studied by cyclic voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS) and charge/discharge tests. At a current density of 0.2C, the first charge/discharge specific capacities were 161.1 mAh/g and 159.1 mAh/g, and the corresponding capacity retention rates after 50 and 100 cycles was 99.5% and 99% respectively. In addition, LiFe0.98V0.02PO4/3DG/C composite had a better rate and cycle performance, as well as greater Li+ diffusion coefficient (DLi+) compared with LiFePO4/C and LiFePO4/3DG/C. Therefore, LiFe0.98V0.02PO4/3DG/C composite will become a potential cathode materials for lithium-ion (Li+) power batteries." @default.
- W2904139917 created "2018-12-22" @default.
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- W2904139917 date "2019-04-01" @default.
- W2904139917 modified "2023-10-16" @default.
- W2904139917 title "High-performance LiFe0.98V0.02PO4/3DG/C synthesized by hydrothermal route using FePO4 as precursor" @default.
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- W2904139917 doi "https://doi.org/10.1016/j.jallcom.2018.12.108" @default.
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