| dc.description.abstract | Prussian blues have advantages such as ease of synthesis, low cost, environmental friendliness, high theoretical capacity, and long cycle life. It has a stable and special mesh frame structure, which provides channels and storage space for ion dissociation. The center hole is large and uniform that be able to accommodate most alkali metal cations such as Mg, Ca, Zn and Al. It is the cathode material of the alkaline ion battery with potential.
In this experiment, the co-precipitation method was used to synthesize NaFeFe(CN)6. The temperature was controlled to 50°C and 70°C during the titration process, so two samples with different particle sizes were produced. The crystal structure and chemical composition were analyzed by X-ray diffraction. It is made into a battery cathode pole piece, and an electric field is applied to the pole piece before drying. Expect the electric dipole moment turned to the direction of the external electric field. The electric field influence on the battery efficiency is discussed.
The lithium battery is made into a constant current method for charging and discharging. A magnetic field is applied during the charging and discharging of the battery, then cause the charged ions affected by the magnetic field to change their movement direction. The influence of the magnetic field on the battery efficiency is discussed. Use different currents to charge and discharge the battery, and observe the effect of different currents on the battery capacity. | en_US |