摘要(英) |
In recent years, Prussian blue has been used as a cathode material for rechargeable batteries. Prussian blue has two independent redox transition metal elements and an open and stable three-dimensional framework. It can be used to store lithium ions and perform battery charge and discharge reactions, and is easy to synthesize , Low cost, long life, light weight and high power characteristics.
K-CoCo Prussian blue nanoparticle was prepared by co-precipitation method, and K-CoCo was prepared by co-precipitation solution at 70°C and 0°C respectively. Use X-ray diffraction to analyze the crystal structure and chemical composition of the sample, The K-CoCo sample prepared by the 70°C co-precipitation solution has a particle size of 101 nm; the K-CoCo sample prepared by the 0°C co-precipitation solution has a particle size of 61 nm. Three kinds of nano particles of nickel, silver and indium are added during the production of the pole piece, and the nano particles and Prussian blue are uniformly mixed to produce the battery pole piece.
The 101 nm K-CoCo Prussian blue and 61 nm K-CoCo Prussian blue were made into batteries and the battery charge-discharge cycle efficiency was discussed. The 101 nm K-CoCo and 61 nm K-CoCo were added with nickel, silver, and indium nano-particles, respectively, to test the charge-discharge cycle efficiency of the battery with the added nanoparticles. The 61 nm K-CoCo and nickel and silver nanoparticle batteries were charged and discharged with 0.015 mA, and the 101 nm K-CoCo and 61 nm K-CoCo and the added nanoparticles were cyclically tested at different currents. Using copper foil as 61 nm K-CoCo and adding nanoparticle battery pole pieces, and discussing the battery charge-discharge cycle efficiency. When preparing 101 nm K-CoCo and silver nanoparticle pole pieces, an electric field and a magnetic field were applied to test the battery charge-discharge cycle efficiency. |
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