Discussion on the application of new batteries in electric vehicles

Through assembly, filling, formation, and capping, the Nickel Hydride Batteries sample to be tested is successfully designed. Second, the Nickel Hydride Batteries performance test, the discharge performance test, the Nickel Hydride Batteries to be tested is charged with constant current, and after charging is completed, the first discharge test adopts an electronic load, a constant current discharger, and discharges with constant current to the final positive voltage. The discharge period is measured, and the capacity is , and the current discharge characteristics are measured. The Nickel Hydride Batteries to be tested is charged and discharged with constant current. The test adopts an electronic load, a constant current discharger, and discharges with constant current to the final voltage. The discharge period is measured, and the capacity is .

The test data of ambient temperature is shown in Table 3. Research on cycle life and charging method From the test data in Table 2, it can be seen that the final voltage of the Nickel Hydride Batteries in Table 2 is different from that of the Nickel Hydride Batteries in Table 3. The Nickel Hydride Batteries cycle life is the actual use state of electric bicycle users. The Nickel Hydride Batteries is the same. The Nickel Hydride Batteries cycle life is analyzed by using the same charging method for the first and second discharges, respectively.

Therefore, after 10 cycles, the Nickel Hydride Batteries discharge capacity is not greatly affected by the storage time of 1 month in the discharge state. The discharge capacity is stable from the original one. The discharge device uses an electronic load. Charge and select three batteries in the discharge state. The total charge is fully charged. The constant voltage is 1, the charging current is 2, and the Nickel Hydride Batteries is cooled in water. The fast cycle life automatic charger is used.

Discharge ‘current charging, when charging’, the discharge state Nickel Hydride Batteries is first charged, and the cycle number exceeds 10 times. The Nickel Hydride Batteries capacity is 20 months. After the Nickel Hydride Batteries is discharged to the termination voltage, the Nickel Hydride Batteries capacity is measured to be 10 months. It is found that the diaphragm electrolyte is reduced. After adding alkali solution, it is done again.

The oxygen that appears in the Nickel Hydride Batteries during overcharging cannot be shown in the table 1. The Nickel Hydride Batteries capacity is related to the number of cycles, the number of charge and discharge cycles, and the ambient temperature. As can be seen from Table 1, the Nickel Hydride Batteries discharge capacity is stable, so this charging method has no adverse effects on the developed sample Nickel Hydride Batteries.

However, this test uses a special charger for lead-acid batteries, so the termination voltage is set to , the charger uses a constant voltage of 1, and the charging current is , which causes rapid compounding during charging, resulting in an increase in the internal pressure of the Nickel Hydride Batteries, and the additional Nickel Hydride Batteries safety valve opens, causing electrolyte loss.

Solution: Change the charging method, select a Nickel Hydride Batteries in a discharged state, and do a shallow discharge charge and discharge study. First, fully charge the Nickel Hydride Batteries and do a capacity test. The capacity is . The shallow discharge cycle charge and discharge parameters are , the discharge charge is a constant voltage of 1, the initial charging current is 8, and the end.

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