Button cell battery model comparison table

The button battery model comparison table is as follows:

The most common button batteries include AG3, AG10 and AG13 used in toys and gifts. The battery model on the computer motherboard is. CR2032. CR2025 in electronic dictionaries, CR2016 or SR44, SR626, etc. in electronic watches.

Safety risks related to button batteries:

1. Babies aged 1 to 3 years old who have just learned to walk are very prone to aspiration and ingestion of button batteries. Damage caused by accidental consumption of button batteries is mainly caused by the electrolyte contained in the battery. Acidic or alkaline electrolytes will cause chemical reactions in the body, causing burns, corrosion, erosion, or even perforation of internal organs.

2. If a severely corroded coin cell battery enters the human esophagus,the metal layer on the surface of the battery may dissolve and leakage may cause burns, corrosion, erosion or even perforation of internal organs, which can seriously endanger life.

Baidu Encyclopedia-Button Batteries

How many specifications are there for button batteries?

cr2016 and cr2032 are not universal.

The differences between the two:

1. Different thicknesses fit different battery slots. The thickness of CR2016 battery is 1.6mm. The thickness of CR2032 battery is 2.5mm.

2. Different capacities to adapt to different battery capacity requirements of electronic products. The nominal capacity of this cr2016 battery is 75mAh. The rated capacity of CR2032 battery ranges from 200 to 240 mAh.

Several common button cell models:

1. CR Button Cell Battery Models: ceux commonly used are CR2016, CR2032, CR2025, where CR stands for lithium-ion battery. For manganese oxide batteries, the last four digits indicate the size. For example, CR2032 refers to a 3V button cell battery with a diameter of 20mm and a height of 3.2mm.

2. AG Series Button Battery Model: The commonly called AG battery in China is basically a zinc-manganese alkaline battery. It is divided into 14 product series from AG0 to AG13, but it is always alkaline in the model. IEC standard. The battery labeling method is marked with the letters "LR", where L means alkaline and R means round.

3. Silver Zinc Oxide Battery: The size of the silver oxide battery can be the same as the zinc manganese alkaline button battery, but the voltage platform of the battery is different. 'silver zinc oxide is relatively higher and the operating voltage is higher, its naming method is basically thesame as that of the LR series. For example, “SR44” stands for silver zinc oxide battery, which is the size of LR44 and AG13.

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. Battery (MLor VL series); Non-rechargeable batteries include 3V lithium manganese button cells (CR series) and 1.5V alkaline zinc manganese button cells (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 alc batteryaline - 7.9mm in diameter and 3.6mm in thickness, SR43, refers to a silver oxide battery --- diameter 11.6mm, thickness 4.2mm.

The picture below shows several common button batteries:

Detailed information:

Classification of button batteries

The common disposable lithium battery is a lithium manganese battery (C code), with a rated voltage of 3V.

Another type of disposable lithium battery , less common, is the lithium fluorocarbon battery (code B), with a nominal voltage of 3V.

In addition, there is another commonly used secondary lithium battery, the ML lithium battery (code name ML), with a nominal voltage of 3 V.

Lithium battery size numbers generally use the new IEC numbering method. The first two digits correspond to the diameter (unit: mm), the last two digits correspond to the thicknessessor (unit: 0.1 mm) and the nearest number. is taken.

3. Silver Oxide

This button battery has the characteristics of long life and large 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 standard japonaise and the SR is the international standard model.

4. Silver peroxide

The structure of this battery is basically the same 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 disadvantage is that the energy density is not sufficient 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 can be used ins high temperature conditions and canIt has the characteristics of long-term storage, stable discharge voltage and good 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 structure semi-sealed and is safe to use. Disposable lithium manganese button batteries have a wide temperature adaptability range and can work normally under 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 inconvenienceOne thing is that the internal resistance of the battery is important. The positive electrode of the battery is made of manganese dioxide or iron disulfide as raw material, the negative electrode is a 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 steelydable with nickel plating: The steel strip has hardness. Not easy to fold.

Nickel plating can firmly add tin to electronic components and prevent them from falling off 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: