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Is a nickel-cadmium battery suitable for me or lithium | News magazine of Tajhiz Omid Pouyesh Company (TOPCO)

Both nickel-cadmium and lithium-ion batteries are wireless devices that are used in industrial projects, lithium batteries are smaller in size compared to nickel-cadmium batteries, and are less likely to fail and require no maintenance. In this article, we want to examine the difference between nickel-cadmium and lithium batteries. To get the necessary information in this field, stay with us until the end of the article.

What is the difference between nickel cadmium battery and lithium?

In order to find out more about the difference between these two types of batteries, we first examine each of these two types of batteries separately.

Nickel cadmium battery

This type of battery has a memory effect in the sense that at the point where the charge was made. It will start charging again, in other words, it will start charging at the same initial point for subsequent uses. Therefore, the voltage at that point drops sharply as if the charge has been discharged, so it is better to use this type with a tri until it is completely discharged, this type of use causes that The capacity of the nickel-cadmium battery should not be wasted.

Nickel Cadmium battery has the ability to be used for more than 1000 cycles.

Lithium battery

This type of battery has a high resistance to the memory effect and requires less maintenance, the lithium battery has the ability to tolerate a greater range of temperatures.

The only problem with this type of battery is its delicacy and it works with a safety protection circuit.

These two types of batteries have the same absolute performance, and the most important difference between nickel cadmium and lithium batteries is in weight and durability – price and consumption.

The difference between nickel cadmium and lithium batteries is as follows:

The first difference between nickel cadmium battery and lithium is their size, lithium battery is smaller and rarely needs repair and the effects it leaves on the environment are safer, these two types of batteries are Applications and chemical compounds used in them are different.

Although the lithium battery provides more voltage, but in terms of cost, it has a much higher price than nickel cadmium.

According to the mentioned cases, the main difference between these two types of batteries is as follows:

chemical mixture: In the nickel-cadmium battery, cadmium and nickel are used as anode and cathode, respectively, and the electrolyte used is the same water potential, but in the lithium-graphite and lithium oxide type batteries, they are used as anode and cathode, respectively, and to supply graphite from They use salt.
environmental effects: 6 to 18% of nickel cadmium batteries are made up of a heavy and toxic metal called cadmium, hence it needs more care and since lithium is considered among the safe materials for the environment, then in this regard The environment is safe.
Price: The price of lithium batteries is more expensive because in this type of battery a protective circuit is used to monitor the voltage and current.

Which type of lithium battery or nickel cadmium battery is more suitable for cordless tools?

In the previous parts of the article, we found out the difference between nickel-cadmium and lithium batteries. Now we want to know which of these two types of batteries is more suitable for cordless tools, to answer this question we consider two indicators of the type of work and its price.

Compared to the cadmium battery, the lithium battery has a much smaller volume and weight, on the other hand, their price difference is about two to three times. Unlike cadmium batteries, lithium batteries do not discharge. This means that it can be used multiple times by charging it once, and every time it is used, it remains in a charged state and provides the required energy.

Both types of batteries have the same power in terms of supply, letage and current, for example, a 10 V lithium battery and a 10 V nickel cadmium battery have the same potential to supply energy.

However, the duration of this energy supply is different in these two types of batteries and depends on the type of tool and the structure of the engine used in it.

Nickel Cadmium batteries because they have a memory effect. During operation, they face a pressure drop and become weak. In NiCd batteries, the charging cycle is done well.