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What kind of battery does the button battery belong to?

29 Dec, 2021

By hoppt

lithium manganese batteries

What kind of battery does the button battery belong to?

There are many types of batteries. As one of the battery classifications, the button battery is known by its name. It is a battery shaped like a button, so it is also called a button battery.

Button cell

Standard button batteries have the following chemical composition: lithium-ion, carbon, alkaline, zinc-silver oxide, zinc-air, lithium-manganese dioxide, nickel-cadmium rechargeable batteries, nickel-metal hydride rechargeable button batteries, etc. They have different diameters, thicknesses, and uses.

The main component of the lithium-ion button battery is lithium-ion, which is a 3.6V rechargeable battery. It is charged and discharged through lithium-ion movement, and the lithium-ion moves between the positive electrode and the negative electrode to work. During the setting and discharging process, Li intercalates and deintercalates back and forth between the two electrodes: during charging, Li deintercalates from the positive electrode and intercalates into the negative electrode through the electrolyte; vice versa during discharge. They are commonly used on TWS headset batteries and various intelligent wearable products.

Lithium-manganese dioxide button batteries are what we usually call lithium manganese batteries. 3V lithium manganese batteries are widely used and are generally marked with CR

Button Battery

Carbon batteries and alkaline batteries are both dry batteries. They are commonly found in No. 5 and No. 7 batteries. I often used the black carbon stick in the carbon battery as chalk for writing when I was young. Carbon batteries and alkaline batteries are similar in use. The most significant difference is that they have different internal materials. Compared with carbon batteries, they are cheaper, but because they contain heavy metals, they are not conducive to environmental protection, while environmentally-friendly alkaline batteries contain mercury. The amount can reach 0%, so it is better to use alkaline batteries if we need to use them. They also have another name called zinc-manganese batteries. Our commonly used 1.5V AG series batteries are alkaline zinc-manganese button batteries; the model is represented by LR, which are often used in watches, hearing aids, and other products.

The size of the zinc-silver oxide button battery and the AG battery is not much different. They are both 1.5V batteries, but the material is added. Silver oxide is used as the positive electrode active material, and zinc is used as the negative electrode (the positive and negative are determined according to the metal activity Pole)—alkaline batteries for substances.

The zinc-air button battery is different from other button batteries in that it has a small hole in the positive casing that is opened only when used. Its material is made of oxygen as the positive electrode active material and zinc as the negative electrode.

Nickel-cadmium rechargeable button-type batteries are rarely seen on the market now, and they contain cadmium, which causes severe environmental pollution.

The nickel-metal hydride button battery is also 1.2V rechargeable. It is composed of active material NiO electrode and metal hydride, and its performance is excellent.

What kind of battery does the button battery belong to? Do you know after reading this article? The button battery only represents the storm's shape, and various performance and advantages still need to be analyzed and checked one by one.


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