During the use of the tricycle, the battery is a consumable part, which is directly related to the user's use cost. In the actual use process, it is often found that the life of the battery is much lower than the original life. According to the analysis, the main reasons are as follows:
1. The quality of the battery itself
The factors that affect the consistency of the battery include the level of battery manufacturing technology and the quality of materials, and the level of battery production management and process level. High level of technology, advanced production technology, good materials, high degree of mechanization, and battery consistency must be good. In the battery production process, the degree of manual labor will inevitably affect the consistency of the battery. Therefore, when selecting a battery as an electric vehicle manufacturer, you must examine the consistency of the battery, understand the battery manufacturer’s production technology, equipment and production management, and select the battery. A battery with stable performance and high consistency.
2. The matching level of the electric vehicle's own circuit system
The charger and controller are closely related to the battery life in the tricycle circuit system. In comparison, the charger has a greater impact on the battery than the controller.
1) Insufficient charging
From the perspective of electrochemical reaction, insufficient charging is manifested by the failure of lead sulfate on the anode and cathode plates to transform into spongy lead and lead dioxide, which makes the battery capacity insufficient. If the battery is insufficiently charged for a long time, it will cause lead sulfate crystals and increase the particles. , So that the plate vulcanization, the quality of the battery deteriorates.
2) Overcharge
Overcharging will cause the anode to produce more oxygen than the cathode's absorption capacity, which will increase the internal pressure of the battery, and eventually open the safety valve, causing the gas to overflow, resulting in a decrease in electrolyte. Damage to the battery, resulting in a greatly shortened battery life.
3) Controller
The influence of the controller on the battery life is manifested in the current density. For tricycles, the current density mainly refers to the running average current and peak current. Whether the controller is over-discharged. The tricycle voltage limit protection setting is too low, which will easily cause over-discharge of the battery. Overdischarge can seriously damage the life of the battery.
4) Charger factor
A working cycle of a battery is the charging and discharging process, so the charging process is also an important factor affecting the battery life. The charging current of the battery and the charging control method directly affect the life of the battery. The capacity and voltage of the battery pack determine the charging parameters. Therefore, the parameters of the charger should match the parameters of the battery, so as to reduce the chance of damage to the battery due to improper charging.
