Abstract
Micro CuO crystals are synthesized by hydrothermal method in one step. The CuO-Li ion full battery is assembled using the porous lithium foil-graphite as a anode and the prepared CuO crystals as a cathode. The micro CuO crystals are characterized by scanning electron micro porousscopy, X-ray powder diffractometer, Fourier Transform infrared spectrometer, thermogravimeter, Brunauer–Emmett–Teller surface area measurements, and differential scanning calorimeter. The full battery is tested by the galvanostatic current charge-discharge technology at higher current densities of 0.25–0.5 mA/cm2. The porous lithium foil-graphite anode can effectively inhibit the powder of anode lithium, and improve the reversibility of the battery.
Highlights
Metal oxides as a cathode, such as CuO [1], Fe2O3, Nb2O5 [2], MnO2 [3], Bi2O3 [4], etc. have smaller molecular weight and higher electron gain and loss number, can obtain higher SC values
The full battery composed of graphite and LiFePO4 can be recycled more than 2000 times [13], indicated graphite is stable in the charge/discharge progress
1 M LiPF6 dissolved in the solution of dimethyl carbonate (DMC), ethylene carbonate (EC) and ethyl methyl carbonate (EMC) with a 1:1:1 volume ratio, which was used as the electrolyte
Summary
Metal oxides as a cathode, such as CuO [1], Fe2O3, Nb2O5 [2], MnO2 [3], Bi2O3 [4], etc. have smaller molecular weight and higher electron gain and loss number, can obtain higher SC values. Metal oxides as a cathode, such as CuO [1], Fe2O3, Nb2O5 [2], MnO2 [3], Bi2O3 [4], etc. The full battery composed of graphite and LiFePO4 can be recycled more than 2000 times [13], indicated graphite is stable in the charge/discharge progress. In our previous work the simple lithium-rich graphite anode /LiFePO4 battery was successfully prepared by electrodeposition of lithium into graphite with a satisfactory full battery, the lithium-rich graphite anode was very stable [14]. The micro CuO crystals were synthesized, and assembled a full cell with Li-graphite. The effect of high density current charge and discharge on the performance of the full cell was studied
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