Is the lithium ion forklift battery good?


Recently, we often receive complaints from some customers about lithium forklift battery. So we began to study whether the capacity of the forklift lithium battery is insufficient. After many tests and attempts, we have found out the reasons for the insufficient capacity of the following lithium ion forklift battery. This article will focus on these reasons and the shortcomings of forklift lithium batteries.

What is the reason for the insufficient capacity of the lithium ion forklift battery?

The lithium forklift battery was not installed and used in time

The electric forklift battery arrives at the user after leaving the lithium battery factory and fails to be installed and used in time, resulting in long-term storage. Long-term storage will cause the self-discharge, lead to insufficient capacity. Long time storage battery is not correct, need to recharge regularly.

Lithium battery for forklift plate corrosion

Lithium battery plate corrosion

The positive plate of the forklift battery is corroded and the capacity is insufficient due to deformation. Forklift battery anode is the important factors that affect the service life of the battery. Electric forklift battery charge and discharge cycle capacity, especially deep circulating capacity drops, is closely related to the positive plate quality deviation.

1 The positive active material softening on the grille and fall off.

Under a microscope, active substances exist in the big hole and pore. The size of the macropore exceeds 0.5cm. It is composed of many small pores. As the discharge cycle progresses, the surface of the active material shrinks, forming a core and forming a coral-like structure. In the second discharge loop, the accumulation of small pore increases, thus increasing the big pore, thus destroying the structure of the positive and active material loss.

In these cases is the important cause of forklift battery in large electric charging and discharging. To prevent it, the current for charging and discharging should be guaranteed and the phenomenon of overcharging or overdischarging should be prevented.

2 Corrosion and deformation of positive grid

The corrosion rate of grating depends on the grid alloy composition, but the higher the storage temperature, the faster the corrosion rate, the deeper the depth of discharge, the more serious corrosion.

Electric forklift battery negative plate sulphation:

PbSO4 particle on the normal operation, the negative plate is very small, discharge is easy to return to the velvet lead, but sometimes the internal battery can produce lead sulfate, it is difficult to restore, called sulfate.

The cause of negative salting out a lot, such as not charging in time after discharge, battery storage for a long time, causing serious self-discharge, electrolyte concentration is too high, charging time is long, high temperature long-term discharge, etc.This kind of lead sulfate is difficult to use conventional method.In this way, the reduction of active materials will inevitably affect the capacity of the forklift battery.

What are the disadvantage of lithium ion forklift battery in warehouse use?

Lithium battery for forklift weight

1-Forklift lithium battery weight

Lithium-ion batteries are lighter, and the weight of lead-acid batteries can be used as a counterweight for forklifts, so anyone supplying lithium-ion batteries on forklifts must compensate for the weight loss in the truck or battery box design. The forklift can be designed for this shortcoming, and other counterweights can be added.

Forklift lithium battery management system

The battery needs to manage the system. Lead-acid batteries are stupid, but it doesn’t matter. If there is no management system on the lithium battery, it will be damaged. This added complexity means that there are more potential problems, and there is a chance of damaging the battery.

Recycling options for forklift lithium battery

2-Recycling options for forklift lithium batteries

Due to the use of newer technology, there is almost no option for recycling when it is scrapped. In other words, over time, better and cheaper recycling options will emerge.

The cost of forklift lithium battery

From an energy point of view, the weight of lithium-ion batteries is about four times lighter than lead-acid batteries, but its cost will be six to seven times higher (data from mid-2016), but the price drops quickly. Cost is still a factor related to lead-acid battery technology, but it drops by half every year and should be the same or cheaper than lead-acid technology by 2030.


Even so, the development trend of lithium batteries is unstoppable. This proves that lithium batteries have certain advantages over lead-acid batteries. So we believe that lithium forklift battery will be widely used in forklift batteries.

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