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What is the battery?

2022-08-24

Electronic cigarettes use is generally lithium-ion batteries.

 

Li-ion battery:

 

Li-ion battery has high energy density and high average output voltage. No memory effect. Wide operating temperature range of -20℃~60℃. Excellent cycle performance, can be quickly charged and discharged, charging efficiency of up to 100%, and high output power. Long service life. Does not contain toxic and harmful substances, and is called green battery.

 

The working voltage of single cell battery is as high as 3.7-3.8V (3.2V for lithium iron phosphate), which is three times of the old NiMH battery. And lithium-ion battery cycle life is long, the general use of the number of times can reach more than 500 times, or even more than 1000 times, lithium iron phosphate can reach more than 2000 times, saving a lot of use costs. Lithium-ion battery safety performance is also very good, no pollution, no memory effect. Does not contain cadmium, lead, mercury and other polluting elements to the environment.

 

Power lithium batteries:

 

The current electronic cigarette market battery to power lithium batteries. Power lithium battery is lithium iron phosphate material, usually designed for capacity below 3000mAh, operating voltage of 3,2V, discharge rate of 5~15C, discharge current above 10A. At present, the power lithium battery model is divided into 18350, 18650, 21700, 26650 and other models, the first two numbers refer to the diameter of the battery and the last three are the height of the battery. For example, 18350, 18 refers to the diameter, 35 refers to the length, 0 represents the cylinder.

 

18650 type:The diameter is 18mm, the length is 65mm, and 0 represents the cylindrical battery. Capacity is generally between 1200mah ~ 3600mah, most electronic cigarette devices use this battery, such as: mechanical rod, regulator rod, regulator box; this battery is the originator of the lithium-ion battery (Japan SONY company in order to save costs and set a standard lithium-ion battery model)

 

 


 
 

 

18500 type:18mm in diameter and 50mm in length, cylindrical battery. This battery has a smaller capacity compared to 18650 and is used less often, only a few mechanical rods are used.


18350 type: 18mm in diameter, 35mm in length, cylindrical battery. This battery capacity is the smallest, but its volume is the smallest, which can reduce the size of the equipment, so there are a few mechanical rods or regulator rods used;.
 


26650 type: 26mm in diameter and 65mm in length, cylindrical battery. This battery has the characteristics of large capacity, a few regulator boxes can be used.

 

The difference between power lithium batteries and ordinary lithium batteries:

 

Both positive and negative material system and construction is the same, the advantage of power lithium battery is that, for safety, power battery has more external protection circuit, heat dissipation layout, etc.; it positive and negative material particles are finer, the chemical reaction rate is faster; secondly, it uses diaphragm material and electrolyte to make better conductivity; the cycle life of power lithium battery is also higher than ordinary lithium battery.

 

Electronic cigarette battery charging precautions:
 


Power lithium battery itself is no memory effect, before using completely used up their power which is instead will affect the battery life, should not wait until completely used up and then recharge.


Electronic cigarettes are usually best charged when the battery is above 30%, modern electronic devices are basically best used in this way, such as ipads, cell phones, Bluetooth speakers. The batteries of these devices are suitable to be charged as they are used, rather than waiting until they are completely used up and then fully charged. Often such a small amount of charging will make your battery last longer than if it was fully charged each time.

Multi-battery vape devices, too, are subject to this theory. And multi-cell vape devices should be careful to charge multiple batteries at the same time to ensure that the batteries are outputting the same voltage. Lithium iron phosphate battery full charge is 3.2 volts, when using a poor quality charger to charge lithium iron phosphate battery, because the chip can not identify the type of battery, it will only be charged as a normal lithium battery, which will charge the full voltage of 3.2V to 4.2V, when the battery can not withstand the overload voltage will explode, so from the beginning of the trial should use the correct charging method.

 

 


 


Electronic cigarette battery use precautions:


 
1. Do not put the positive and negative terminals in your pocket when the battery is exposed

If you want to carry spare batteries, make sure they can't accidentally leak; if there are any conductive terminals nearby that could cause your battery to have an accident, it's best to take a precautionary measure to protect your life. Some e-cigarette manufacturers will include a battery silicone or other insulator protective sleeve with the kit, using this to isolate the exposed battery poles from each other to avoid collisions between them, thus avoiding accidental explosions.
 


2. If the battery packaging is damaged or exposed parts should not be used
 
Often check the outer shell of the battery, although this is a layer of packaging shell, but play a role in protecting the battery. With long-term charging and plugging, will inevitably damage the battery shell. Therefore, you should regularly check the outer packaging of the battery and find that there are dents or unknown liquid leakage, you have to pay attention to, so the battery should not be used, hurry to change the battery.
 
If only the outer skin of the battery is broken, after inspection found that the metal skin wrapped in it is not damaged, if the economic conditions are good you can choose to directly replace, if you think it is a pity that you can buy 18650 battery skin online for replacement processing, tutorials online can also be a lot of direct learning to use.


 
3. Do not let the battery in a long-term overheating state
 
The typical pattern of lithium-ion battery failure is that the electrolyte is heated to the boiling point, the internal pressure of the battery rises to a point where the sealing plate at the top of the battery breaks, and the pressure is suddenly released to rush out of the sealed end of the battery.

So do not leave the battery in an overheated state at any time, whether this state is due to the use of the battery or to high ambient temperatures, and avoid this situation whenever possible.

 

 

Information source: Wikipedia

 

 

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