Introduction：
The pulse discharge technology principle of the battery equalization repair instrument is mainly based on the pulse signal to perform specific discharge operations on the battery to achieve battery equalization and repair functions. The following is a detailed introduction to the pulse discharge technology of the battery equalization repair instrument:
Pulse signal generation
The battery equalization repair instrument has a special pulse signal generator inside, which is usually composed of an oscillation circuit, a control circuit, etc. The oscillation circuit can generate high-frequency or low-frequency pulse signals, and the parameters such as the frequency, width and amplitude of these signals can be adjusted as needed. The control circuit accurately controls the pulse signal generated by the oscillation circuit according to the specific state of the battery and the preset program to output a pulse sequence that meets the requirements.
Pulse discharge process
Connection with battery: Connect the battery balancing repairer to the battery pack to be processed through a specific interface, and the pulse discharge circuit of the repairer forms a closed loop with the battery cell or battery pack.
Discharge principle: When the pulse signal is at a high level, the switch element (such as power transistor, etc.) in the pulse discharge circuit is turned on, and the battery releases charge through the discharge circuit to form a discharge current. During the low level of the pulse signal, the switch element is turned off and the discharge process is suspended. By repeating this high-level conduction discharge and low-level cut-off process, a pulse discharge is formed.
Energy release and transfer: During the pulse discharge process, the chemical energy inside the battery is converted into electrical energy and released through the discharge circuit. For each battery cell in the battery pack, if there is a voltage imbalance, the battery cell with a relatively high voltage will release more charge during the pulse discharge process, while the battery cell with a lower voltage will release relatively less charge. In this way, by controlling the pulse parameters and discharge time, etc., the charge of each battery cell can gradually become consistent, thereby achieving battery balancing.
Effect on the battery
Eliminating polarization: The battery will produce polarization during the charging and discharging process, resulting in a decrease in battery performance. Pulse discharge technology can use the special effect of pulse signals to effectively eliminate the concentration polarization and electrochemical polarization of the battery during the discharge process. For example, during the short interval of pulse discharge, the ion concentration distribution inside the battery can be restored to a certain extent, thereby reducing the impact of polarization on the battery charging and discharging performance, and improving the battery charging and discharging efficiency and reversibility.
Repairing sulfation: For battery types such as lead-acid batteries that are prone to sulfation, pulse discharge technology has a certain repair effect. When sulfides appear on the battery plates, pulse discharge with appropriate frequency and amplitude can generate instantaneous large currents to impact the sulfides, causing the sulfide crystal structure to change, gradually decompose and dissolve into the electrolyte, thereby restoring the active substances of the battery plates and improving the battery capacity and performance.
Balanced battery pack: In the battery pack, different battery cells may have differences in capacity, internal resistance, etc. due to factors such as production process and use environment, resulting in imbalance during the charging and discharging process.The battery equalization repair instrument pulse discharge technology controls the discharge of each battery cell to varying degrees, allowing cells with high voltage and large capacity to release more electricity, while cells with low voltage and small capacity release less electricity. Ultimately, it achieves balance of parameters such as voltage and power of each cell in the battery pack, thereby improving the overall performance and service life of the battery pack.
Conclusion
Heltec's battery equalization maintenance instrument, with its advanced pulse discharge equalization technology, provides an efficient, safe and convenient solution for battery maintenance. It can help users extend battery life, reduce usage costs, and improve the performance and reliability of battery-related equipment. It is an ideal choice in the field of battery maintenance.
If you have any questions or would like to learn more, please don't hesitate to reach out to us.
Request for Quotation:
Jacqueline: jacqueline@heltec-bms.com / +86 185 8375 6538
Sucre: sucre@heltec-bms.com / +86 136 8844 2313
Nancy: nancy@heltec-bms.com / +86 184 8223 7713
Post time: Jan-21-2025