Discussion on the Application of New-Type Batteries in Electric Vehicles

After assembly, injection, charging, and sealing, the tested battery sample has successfully reached the design voltage of the battery. The battery performance is tested, including the discharge performance of the battery. The discharged battery is charged at a constant current, and after the charging is completed, a discharge test is conducted using an electrical load. The constant current discharge is carried out until the final positive voltage is reached, and the discharge capacity is measured. The current discharge characteristics of the tested battery are measured. For the large current charging and discharging test, an electronic load constant current charger is used, and the discharge is carried out until the final voltage is reached, and the discharge results are measured, with the capacity being the measured value.

The environmental temperature test data are shown in Table 3. The study on cycle life and charging methods can be seen from Table 2 of the test data. The final voltages of the first and second batteries represent the actual usage conditions of electric bicycle users. The voltage differences are the same, while the battery cycle life is the same. The final voltages after the first and second discharges of the batteries are respectively analyzed and studied.

Therefore, after this cycle, the battery's discharge capacity is less affected by the storage time of the batteries in the discharged state for more than one month. The discharge capacity of a stable battery remains stable. The discharge device uses an electronic load. For charging, three batteries in the discharged state are selected and fully charged together. The charger uses a fixed voltage of one, with a charging current of, and is cooled in water. A rapid cycle life automatic charger is used.

"Discharge 'followed by charging. During charging, the number of cycles begins with a full charge of the discharged battery, which is left to stand. Then, after several cycles, the battery capacity is measured by discharging the battery to the termination voltage after it has been fully discharged. It is found that the electrolyte in the separator decreases after the battery is discharged. After adding new alkaline solution, another measurement is conducted."

When the original battery is overcharged, the oxygen produced at the electrode does not show a cycle number 'relationship between battery capacity and charging and discharging times under environmental temperature'. From Table 1, it can be seen that the battery's discharge capacity is stable. Therefore, this charging method has no adverse effect on the developed sample battery.

However, in this experiment, a dedicated charger for lead-acid batteries was used. Therefore, the termination voltage was set at this level. The charger selected a constant voltage mode, with a charging current of. During the charging process, the battery pressure increased rapidly, causing the safety valve of the battery to open and resulting in the loss of electrolyte.

The solution involves changing the charging method, selecting a battery that is currently in a discharging state, and conducting a study on shallow discharge and charge cycles. First, fully charge the battery and perform a capacity test. The capacity is approximately... The parameters for the shallow discharge cycle are as follows: discharge and charge at a fixed voltage of..., with an initial allowable current of 8, until completion.