Does anyone know the dimensions of the standard 18650 cylindrical lithium battery?

Introduction Does anyone know the dimensions of the standard 18650 cylindrical lithium battery? 18650 is the size ID model, 18 is the diameter of 18mm, and 650 is the height of 65.0.

Does anyone know the dimensions of the standard 18650 cylindrical lithium battery?

18650 is the size ID model, 18 is the diameter of 18mm, and 650 is the height of 65.0mm.

18650 is the creator of lithium-ion batteries - a standard lithium-ion battery model defined by the Japanese company SONY in order to reduce costs. 18 means the diameter is 18mm and 65 means the length is 65mm. .0 represents a cylindrical battery.

Common 18650 batteries are divided into lithium ion batteries and lithium iron phosphate batteries. The rated voltage of lithium ion battery is 3.7V, the charging cutoff voltage is 4.2V, the rated voltage of lithium iron phosphate battery is 3.2V, the cutoff voltage charging is 3.6V, capacity is generally 1200mAh. 3350 mAh, common capacity is 2200 mAh-2600 mAh.

Detailed information

Charging and discharging principle of lithium-ion battery

The working principle of thelithium-ion battery refers to its principle of charging and discharging. When the battery is charged, lithium ions are generated on the positive electrode of the battery and the generated lithium ions move to the negative electrode via the electrolyte. The carbon used as a negative electrode has a layered structure with numerous micropores. The lithium ions that reach the negative electrode are integrated into the micropores of the carbon layer. The more lithium ions, the higher the charging capacity.

Similarly, when the battery is discharged (that is, the process when we use the battery), the lithium ions embedded in the carbon layer of the negative electrode are released and return towards the positive electrode. The more lithium ions that return to the positive electrode, the higher the discharge capacity. What we usually call battery capacity refers to the discharge capacity.

It is not difficult to see that during the charging and discharging process of lithium-ion batteries, lithium ions are in a state of movement from the positive electrode → the negative electrode → l positive electrode. If we compare the lithium-ion battery to a rocking chair, the two ends of the rocking chair are the poles of the battery, and the lithium ions are like excellent athletes, running back and forth at both ends of the rocking chair. So, experts have given the lithium-ion battery a nice name: rocking chair battery.

References:

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Baidu Encyclopedia_ 18650 lithium battery

< h3>What is the difference between 18650 and 11865 lithium batteries?

The parameters of lgdas31865 lithium battery are as follows:

LGDAS31865 est a lithium battery model 18650 with a capacity of 1100mAh. According to the official information provided by LG, the charging time of LGEAS31865 is 1-2 hours. The 18650 battery is a common cylindrical battery with a diameter of 18 mm and a length of 65 mm. Depending on the battery specifications, the capacity of the 18650 battery ranges from 1200 mAh to 3350 mAh. In addition, the lifespan of the 18650 battery can theoretically be recharged 1,000 times.

What is the difference between 18650 and 18500 18350 lithium batteries?

18650 is the most common cylindrical cell packaging method, with a diameter of 18mm and a length 65mm. used in power banks, laptops, power tools and other fields. Currently, common capacities are 2600 mAh, 2800 mAh and 3000 mAh. LG's new battery cell model is LGABE11865, and the rated capacity in the official PDF is 3200Mah. The 11865 lithium battery is the product code of LG and belongs to the category of 18650 lithium batteries. Their length and diameter are the same.

18650, 18500 and 18350 lithium batteries only have different battery lengths. They represent 65 mm, 50 mm and 35 mm respectively. These are all cylindrical batteries with a diameter of 18mm.

The 18650 lithium battery is a lithium battery commonly used in electronic products and is often used as the battery core in laptop batteries. The rules for defining its model are: For example, the 18650 type refers to a cylindrical battery with a diameter of 18mm and a length of 65mm.

The diameter of the 18500 lithium battery is 18mm, the length is 50mm, and it is a cylindrical battery.

The diameter of the 18500 lithium battery is 18mm, the length is 35mm and it is a batterycylindrical.

These batteries with different lengths and the same diameter are suitable for different occasions.

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