26650 lithium batteries are less likely to cause fire and are safer than regular lithium batteries. In order to prevent excessive discharge or overcharging of the battery due to misuse, a triple protection mechanism is installed in the single lithium-ion battery. With the help of switching elements, when the temperature inside the battery increases, its resistance increases accordingly. When the temperature is too high, the power supply will automatically stop.
Choose an appropriate separator material. When the temperature reaches a certain value, the micron-sized pores on the separator automatically dissolve, preventing lithium ions from passing through and stopping the internal reaction of the battery; a safety valve (this is the ventilation hole on the top of the battery). When the internal pressure of the battery reaches a certaine value, the safety valve opens automatically to ensure the safety of the battery.
Advantages of lithium batteries
1. high. It has a high storage energy density, reaching 460-600 Wh/kg, about 6-7 times that of lead-acid batteries.
2. Long service life, service life can reach more than 6 years. The battery with lithium iron phosphate as the positive electrode has a charge and discharge record of 1C (100% DOD), which can be used 10,000 times.
3. The rated voltage is high (the operating voltage of a single unit is 3.7V or 3.2V), which is approximately equal to the series voltage of three nickel-cadmium or nickel-cadmium rechargeable batteries. metal hydride. , which facilitates the formation of a battery power supply; lithium batteries can be a new type of voltage regulator technology of blithium battery that adjusts the voltage to 3.0 V to accommodate the use of small electrical appliances.
What is the minimum voltage of a 26650 lithium battery?
The differences between 18650 and 26650 batteries are:
1. the rated capacity is different: IFR26650 rated capacity is 3000 mAh, IFR18650 rated capacity is 1100 ~ 1400 mAh.
2. The diameters of the two batteries are different: the diameter of IFR26650 is 26mm and the diameter of IFR18650 is 18mm.
3. The reference quality is different: the production quality of IFR26650 is 94 grams and the production quality of IFR18650 is 45 grams. ?
Detailed information
18650 lithium battery is used in lighting batteries, industrial support lithium batteries, power batteries power tools, electric bicycle batteries and lithium power. batteries There are many applications in battery packs, etc., and 26650 lithium batteries are mainly used in integrated solar street light lithium battery packs, energy storage stations, solar power storage batteries. solar energy, etc.
The 26650 lithium battery will gradually replace the 18650 lithium battery in power battery applications. And with the large-scale use of lithium batteries, there will inevitably be a trend of larger capacity 26650 lithium batteries to replace the fashionable 18650 lithium batteries in the 3C era.
PurposeA considerable number of PACK companies and 3C integrated application supply companies have started to use 26650 lithium batteries. Due to the use of 26650 lithium batteries compared to lithium batteries 18650 larger, the PACK cost can be reduced by about 30%, whichui is important to. the improvement in business profitability and market competitiveness is very impressive.
Where can I buy 18650 lithium batteries?
26650 lithium battery is mainly divided into two types: ternary material and lithium iron phosphate material. The fully charged voltage of the 26650 lithium battery of the ternary material is 4.2V, and that of the 26650 lithium. The lithium iron phosphate battery is fully charged. The electrical voltage is 3.65 V; Therefore, the minimum operating voltage of 26650 lithium battery depends on the application, as follows:
1.
1. Ternary 26650 The discharge cut-off voltage of lithium battery cells is 2.75V, that is, the minimum operating voltage of a single cell is 2.75V.
2. If 26650 lithium batteries are assembled in series and parallel to form a PACK, the tMinimum voltage for a single group is 2.75 V multiplied by the number of series connections.
2. 26650 lithium iron phosphate battery:
1. If used without protection plate, the discharge cut-off voltage of 26650 lithium battery cell is 2.0V.
2. If 26650 lithium batteries are assembled in series and parallel to form a PACK, it is recommended that the discharge cut-off voltage of a single string is 2.5V, that is, the voltage minimum used is 2.5 V. 2.5 V multiplied by the number of series connections. Of course, it must also be combined with the performance of the specific parameters of the corresponding PACK protection card.
The above answer from dianchizhidu is for your reference, hope it is helpful for you.
Online shopping. It is sold on many online platforms. Including factory direct sales. Or the countbattery store at your local electrical mall. 3If the quantity is large, you can order from the manufacturer. 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, 65 means the length is 65mm and 0 means. Cylindrical battery.
Type Differences
Lithium batteries are labeled 3.7V or 4.2V. It's just that the manufacturer's labeling is different. 3.7V refers to the platform voltage (i.e. typical voltage) of battery discharge during use, while 4.2V refers to the voltage when it is fully charged.
Common rechargeable 18650 lithium batteries have a standard voltage of 3.6 or 3.7 V. When fully charged, it is 4.2 V. This does not matter much. something to do with powerance (capacity) of 18650 batteries. from 1800mAh to 2600mAh (the capacity of 18650 battery is mainly 2200~2600mAh), the main capacity even has a capacity of 3500 or 4000mAh or more.