In this era of continuous technological advancement, the small electric forklift has occupied a place in the electric forklift demand market by virtue of its small size, convenient maintenance, low noise, and environmental protection. The battery forklift has different specifications and shapes, and the small electric forklift is an electric forklift suitable for indoor use. Most of the battery forklifts commonly used in the market are powered by lead-acid batteries or lithium batteries produced by forklift manufacturers in china, and the price has also begun to be civilian. It takes about 8 hours for a battery forklift to complete a charge, but as time goes by, it can be fully charged in only about 4 hours, and then the power will drop rapidly. What's going on?
There is a situation that after the small electric forklift battery is delivered, the user does not install it in time, and the long-term storage causes self-discharge, resulting in insufficient battery capacity. So for the maintenance of the battery, forklift manufacturers in china would like to remind everyone to charge it every once in a while.
Then there is the fact that the small electric forklift plate of the battery 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 forklift battery charge and discharge cycle will lead to the decrease of the capacity under deep cycle and is closely related to the quality deviation of the positive plate.
The main reason for the softening and falling off of the active material on the positive grid of the small electric forklift battery is due to the high current charging and discharging of the forklift battery. Microscopically, there are macropores and micropores in the active material, and the macropore is composed of many small pores with a size of more than 0.5cm. With the progress of the discharge cycle, the surface of the active material shrinks to form a core coral-like structure; However, the accumulation of small pores increases after multiple discharge cycles, which will increase the large pores, 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 electric forklift battery will also cause the battery capacity of the small electric forklift to decrease. Forklift manufacturers in china suggest that in normal operation, the PbSO4 particles on the negative plate are small, and the discharge is easy to restore to velvety lead, 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 the failure to charge in time after discharge, the long-term storage of the battery, causing serious self-discharge, the high electrolyte concentration, the long-term insufficient charging, and the long-term discharge at high temperature. This lead sulfate is difficult to restore by conventional methods. , forklift manufacturers in china said that the reduction of such active substances will inevitably affect the capacity of small electric forklift batteries.
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