What are the reasons for the decrease in the battery capacity of the 2-ton electric pallet truck?

In this era of continuous technological advancement, the 2-ton electric pallet truck in the electric pallet truck demand market has occupied a place with its advantages of small size, convenient maintenance, low noise and environmental protection. The battery pallet truck has different specifications and shapes. The small electric pallet truck is an electric pallet truck suitable for indoor use. Most of the battery pallet trucks commonly used in the market are powered by lead-acid batteries or lithium batteries, and the price has also begun to become civilian. It takes about 8 hours for the battery pallet truck to complete a charge, but as time goes by, it only takes about 4 hours to be fully charged, and then the power will drop rapidly. What's going on?

There is a situation that after the 2-ton electric pallet truck battery arrives, the user does not install it in time, and the long-term storage causes self-discharge, resulting in insufficient battery capacity. Therefore, for the maintenance of the battery, we should remind everyone to charge it every once in a while.

The other is that the battery is 2 tons of electric pallet truck plate is corroded and deformed, resulting in insufficient battery capacity. The positive plate of the battery affects the service life of the battery to a large extent, and the capacity of the pallet truck battery charge-discharge cycle will lead to a decrease in the capacity under deep cycle, which is closely related to the quality deviation of the positive plate.

The main reason for the softening and shedding of the active material on the positive grid of the 2-ton electric pallet truck battery is due to the high current charging and discharging of the pallet truck battery. Microscopically, there are macropores and micropores in the active material. The macropores are composed of many small pores with a size of more than 0.5 cm. With the progress of the discharge cycle, the surface of the active material shrinks to form a core coral-like structure; The increase in the number of small pores in cyclic use will lead to the continuous increase of large pores, which will destroy the structure of the positive electrode and cause the active material to fall off. The corrosion deformation rate of the positive grid depends on the composition of the grid alloy. The higher the storage temperature, the faster the corrosion rate, and the deeper the discharge depth, the more serious the corrosion.

The sulfation of the negative plate of the battery of the electric pallet truck will also cause the battery capacity of the 2-ton electric pallet truck to decrease. It is suggested that in normal operation, the PbSO4 particles on the negative plate are small, and it is easy to recover to velvety lead after discharge, but sometimes lead sulfate that is difficult to reduce is generated inside the battery, which is called sulfation.

There are many reasons for the salinization of the negative electrode, such as not being able to charge in time after discharge, long-term storage of the battery, causing serious self-discharge, excessive electrolyte concentration, insufficient long-term charging, and long-term discharge at high temperature. Lead is difficult to restore by conventional methods, and the reduction of such active substances will inevitably affect the capacity of the battery of the 2-ton electric pallet truck.

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