There are two common types: rechargeable and non-rechargeable. Rechargeable batteries include 3.6V rechargeable lithium-ion button cells (LIR series) and 3V rechargeable lithium-ion button cells (ML or VL series); -Rechargeable batteries include 3V lithium-manganese button batteries (CR series) and 1.5V alkaline zinc-manganese button batteries (LR and SR series).
Typically, the code name for coin cell batteries will have R, followed by a number. Some of these numbers directly represent the diameter and thickness of the battery, such as CR3032 for lithium battery buttons, which refers to a diameter of 30mm and a thickness of 32mm. Some of these numbers are special codes for diameter and thickness, such as LR41. , which refers to an alkaline battery - 7.9mm in diameter and 3.6mm in thickness, SR43, refers to a silver oxide battery --- diameter 11.6mm, thickness 4, 2mm.
The image belowshows several common button batteries:
Detailed information:
Classification of button batteries
1. Lithium battery
The common disposable lithium battery is lithium manganese battery (C code), rated voltage 3V.
Another type of disposable lithium battery, less current, is the lithium fluorocarbon battery (code B), with a rated voltage of 3V.
In addition, there is another commonly used lithium secondary battery, the ML lithium battery (name of code ML), with a nominal voltage of 3 V.
Lithium battery size numbers generally use the new IEC numbering method. The first two numbers are the diameter (unit: mm), the last two numbers are the thickness (unit: 0.1 mm), and the nearest number. is taken.
3. Silver oxide
This button battery has the characteristics of a lolong lifespan and high capacity. It is widely used and has the largest application volume. This type of battery uses silver oxide as the positive electrode, zinc metal powder as the negative electrode, and the electrolyte is potassium hydroxide or sodium hydroxide. Electrical energy is generated by the chemical interaction of zinc and silver oxide.
The thickness (height) of silver oxide coin cell batteries is available in five specifications: 5.4mm, 4.2mm, 3.6mm, 2.6mm and 2 .1 mm, and its diameters are available in four specifications: 11.6 mm. , 9.5mm, 7.9mm and 6.8mm.
When choosing, you should choose one based on the size of its location. Its commonly used models include AG1, AG2, AG3, AG1O, AG13, SR626, etc. The AG model is the Japanese standard and the SR is the international standard model.
4. Silver peroxide
The structure of this battery is basically the msame as that of a silver oxide button cell. The main difference lies in the anode (absorbing electrode) of the battery. is composed of silver peroxide.
5. Alkaline manganese
This battery has large capacity and excellent low temperature performance. The materials used are cheap and inexpensive, and it can meet the requirements of continuous discharge. major currents.
The disadvantages are that the energy density is insufficient and the discharge voltage is not stable enough. The positive electrode of the alkaline manganese button cell is manganese dioxide, the negative electrode is zinc, and the electrolyte is potassium hydroxide. Its nominal voltage is 1.5 V.
6. Mercury
Also known as mercury battery, it has the characteristics of being able to be used under high temperature conditions, capable of long-term storage, stable discharge voltage andgood mechanical properties. But its low temperature characteristics are not good. The positive electrode of this battery is mercury, the negative electrode is zinc, and the electrolyte can be potassium hydroxide or sodium hydroxide. Its nominal voltage is 1.35V.
7. Lithium-ion
The rated voltage of the disposable lithium manganese coin cell battery is 3V, the termination voltage is 2V, and the typical operating current is 0.1-0.2 my. It uses manganese dioxide with very stable chemical properties as the positive electrode material and lithium metal with very high specific energy as the negative electrode material.
The average annual reduction in capacity does not exceed 2% and the storage life is long. The battery adopts a semi-sealed structure and is safe to use. Disposable lithium manganese button batteries have a wide range of temperature adaptability and peCan operate normally in conditions of -20 to +60 degrees Celsius.
It is mainly used in electronic dictionaries, motherboard CMOS batteries, watches, etc.
8. Secondary Lithium
This is a secondary button cell and a button cell that can be charged and discharged many times; rated voltage: 3.7V; charging voltage 4.2V; >
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The corresponding mark is visible on the back of the battery
LR---alkaline--1.5V
SR---oxide silver --1.55V
CR---lithium battery--3V
ZA---zinc air--1.4V
LIR- --secondary lithium Battery - 3.7V
9. Hammer button
This battery has the characteristics of high energy density, good storage performance, low self-discharge and long service life. The downside is that the internal resistance of the battery is high. The positive electrode of the battery is made of manganese dioxide oriron disulfide as raw material, the negative electrode is hammer, and the electrolyte is organic material.
The rated voltage of Li/MnO type hammer battery is 2.8V and the rated voltage of Li(CF)n type hammer battery is 3V.
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10. Battery with soldered pins
Battery with soldered pins, also known as battery with pins or battery with pins, is called battery with soldered battery in English; called pin battery in Taiwan and Hong Kong. This is a pin battery.
Usually small electronic devices, digital products, medical equipment, etc., button batteries used for energy storage need to be soldered on the printed circuit board (PCBA). The battery cells are made of stainless steel with nickel plating: the steel strip has hardness. Not easy to fold.
Nickel plating can firmly add tin to compselectronic bones and prevent them from falling easily. It is not possible to weld the battery and the steel strip directly. The solder is not strong, it falls off easily, and the contact area is small.
Reference materials:
Comparison table of commonly used button battery models
Is there any difference between 2032 and 2025 button batteries
The thickness is different and the amount of active material filled is also different, which means the capacity is different? different.
For numbers 2032 and 2025, the first two digits represent the diameter of the pile, and the last two digits represent the height of the pile (10 times smaller), in mm
< p> CR2032:< /p>< p> Lithium manganese dioxide battery is named according to IEC standards. Among them, C- is a system ofchemical battery with lithium metal as the negative electrode and manganese dioxide as the positive electrode. the battery is cylindrical. If it is square, F is replaced; 20 means the battery diameter is 20mm and 32 means the battery height is 3.2mm. Rated voltage is 3.0V, final voltage is 2.0. V, and the rated capacity ranges from 200 to 230 mAh.CR2025 battery:
Lithium manganese dioxide battery is named according to IEC C standards- is a system of lithium metal chemical battery. as negative electrode and manganese dioxide as positive electrode R- means the shape of the battery is cylindrical, if it is square, F will replace it, 20 means the diameter of this battery is 20mm, 25 means the thickness . of this battery is 2.5mm. The rated voltage is 3.0 V, the end point voltage (end point voltage) is 2.0 V, and the rated capacityranges from 140 to 170 mAh.
With the requirements of the new industry, there are also specially improved batteries whose capacities will be very different, mainly to improve their large current output capacity, such than those used in flashlights or RF products. The shape is button battery, button battery, this button battery is often used. on computer motherboard CMOS batteries, other memory functions or power-off protection modules, electronic scales and calculations on appliances, electronic dictionaries and other products.
Can the 2032 and 2025 button cells be used interchangeablyYes, but? the edges of 2025 are small and need something to pad.
Hello, the models of the two different specifications, different, generally cannot be used universally.
Yes, the thickness of 2025 is a little thinner than that of 2032.
Can 2025 and 2032 button batteries be used interchangeably?As long as you can install them, they can be used interchangeably. The two batteries are simply different in thickness.
Typically, 2032. batteries are more used on computer motherboards.
2025 is more commonly used in car keys
Are button batteries universal in 2025 and 2016?Button batteries can't be charged that much because they are. little.
The battery charging process will cause heating and expansion. If the button cell battery is charged, it will be easily deformed and broken, and may even cause an explosion.
Is the 2032 button cell a lithium-ion battery?Most of them are lithium batteries. You can see if there is a lithium battery mark on the pithe
If not. marked as rechargeable, be careful not to charge it, as there is a risk of explosion.
2032 button cell four groups of 12 capacity2032 lithium battery is a common specification of button cell. 2032 is a small 3V disposable lithium battery, which cannot be recharged in the BIOS power supply of the computer motherboard. , toys, watches When used on the Internet, the battery capacity is generally only 40mah. If four groups are connected in series, you can get a 12V 40mah battery
<. There are 3 common rechargeable and non-rechargeable batteries ．6V, LIR series rechargeable lithium-ion button cell and ML or VL series 3V rechargeable lithium-ion button cell. Non-rechargeable batteries include CR series 3V lithium-manganese button cells and LR and SR series 1.5V zinc-manganese alkaline button cells.
The p codeThe button generally has an R followed by a number. These numbers directly represent the diameter and thickness of the battery, such as the CR3032 lithium button which refers to a diameter of 30 mm and a thickness of 32 mm. Some special diameter and thickness codes, such as LR41, which refers to an alkaline battery with a diameter of 7.9 mm and a thickness of 3.6 mm, and SR43, which refers to an alkaline battery silver oxide with a diameter of 11.6 mm and a thickness of 4.2 mm.
A common disposable lithium battery is a lithium manganese battery (code C) with a rated voltage of 3V. A less common disposable lithium battery is a lithium fluorocarbon battery (code B), which is labeled Call Voltage. 3v. In addition, common secondary lithium batteries include ML lithium batteries (code name ML), with a rated voltage of 3V. The size number of lithium batteries generally adopts the new numbering method.IEC version. The first two numbers are the diameter (mm) and the last two numbers are the thickness (0.1mm), which are very close to each other.
Capacity characteristics
It has the characteristics of long life and large capacity. The battery uses silver oxide as the positive electrode, zinc metal powder as the negative electrode, potassium hydroxide or sodium hydroxide as the electrolyte, and electricity is generated by the chemical reaction zinc and silver oxide. The thickness (height) of the silver oxide coin cell battery is 5.4mm, 4.2mm, 3.6mm, 2.6mm and 2.1mm, and its diameter is 11 .6mm, 9.5mm, 7.9mm, 6.8mm, four specifications.
Choose one based on the size of its location. Commonly used models include AG1, AG2, AG3, AG1O, AG13, SR626, etc. AG is a Japanese standard and SR is an international standardnale. The structure of the battery is basically the same as a silver oxide button cell, the main difference is that the anode (anode) of the battery is made of silver peroxide.de. The battery has the advantages of large capacity, good low temperature performance, cheap materials and low price, and can meet the requirements of large current continuous discharge.