How to quickly charge forklift batteries, let's understand together

The lithium pallet truck battery is charged off the line from the power supply system. It is better to increase the power required by the battery in a short period of time. This step is called fast charging.

Fast charging also adopts current-limiting and constant-voltage charging. The charging may be completed within twelve hours. These charging steps include both current-limiting charging and constant-voltage charging. The current is not limited, and the damage to the battery will be great. Since the charging current will be extremely large at the initial stage of constant voltage charging, the excessive charging current will increase the electrolyte concentration in the pores of the active material on the electrode, and the dispersion rate of the electrolyte does not have the condition of the combined rate of concentration polarization and electrochemical polarization. , There will be an extremely high potential trend, then the charging voltage value will be constant, it will be converted into charging current.

At the time when the charging current is too large in the initial stage of charging, the positive electrode active material and the negative electrode active material will have very fine and dense crystal particles, which will affect the depth of charging. In addition, the high-current demand high-power charging setting must be completed in the early stage of charging, so the charging current must be limited. What factors are related to the power of the current?

The thickness and porosity of the active material on the positive electrode of the battery. If the porosity of the active material is large and the electrode plate is thin, it is conducive to the dispersion of the electrolyte, and the usefulness of polarization will be reduced.

The current on the plate is average, and the resistance is small, so you might as well reduce the cost of charging current.

Depth of discharge. The deeper the discharge depth, the reduction of the positive electrode active materials and the fan active materials, and the more materials that need to be converted after charging, so it might as well improve the ability to receive charging.