Are 26650 batteries better than 18650​

Are 26650 batteries better than 18650​

Are 26650 batteries better than 18650​

18650 lithium batteries have overseas power supply, and 26650 lithium batteries are mostly domestic
26650 lithium battery has large volume and capacity.
The 18650 lithium battery is currently up to 3400 mA from Panasonic.
The 26650 lithium battery is currently a domestic 4000 mA battery. The capacity difference is small, but the volume is much larger.
The 18650 lithium battery is mostly used in the battery cell of notebook computers. It is also compatible with the size of two CR123As, so it is more used in flashlights. The 26650 is not so mainstream.
The only advantage of the 26650 lithium battery is that the discharge current is higher than that of the 18650 lithium battery.
The 26650 lithium battery is not as widely used as the 18650 because of its large volume and capacity.
Overall, the 18,650 lithium battery has better performance. 26,650 lithium battery is the best partner of flashlight, and other electronic devices use less, so its popularity is not high. Like 1 # battery and 5 # battery, 1 # battery is mainly used for flashlight, while 5 # battery is used for many electronic devices.

Advantages and disadvantages of 18650 lithium battery and 26650 lithium battery

Advantages and disadvantages of 18650 lithium battery and 26650 lithium battery. The so-called 18650 lithium battery and 26650 lithium battery represent the size of lithium battery. For example, for 18650 lithium battery, 18 represents the diameter of the battery, 650 represents the height of the battery, and the unit of length is mm. 26650 lithium battery refers to a cylindrical battery with a diameter of 26mm and a length of 65mm. What are the advantages and disadvantages of 18650 lithium battery and 26650 lithium battery?
Advantages of 18650 lithium battery: large capacity, long life, high safety performance, no explosion, no combustion; It is non-toxic, pollution-free, high voltage, and has no memory effect. Before charging, it is not necessary to vent the remaining power. It is convenient to use, has small internal resistance, and can be combined in series or parallel to form 18650 lithium battery pack, with a wide range of use.
Advantages of 26650 lithium battery: high energy density, low self discharge rate, stable charge and discharge performance, no memory effect, no decomposition in case of heat, high safety performance, long life cycle High voltage, can be used in series or in parallel to form 26650 lithium battery pack, which is environmentally friendly and pollution-free.
Advantages and disadvantages of 18650 lithium battery and 26650 lithium battery

  1. Battery volume comparison
    The volume of the 26650 lithium battery is larger than that of the 18650 lithium battery. They have the same cell height and different cell diameters. The cell diameter of the 26650 lithium battery is 26 mm, while the cell diameter of the 18650 lithium battery is 18 mm.
  2. Battery capacity comparison
    The battery capacity of the 26650 battery with the same battery material is larger than that of the 18650 battery. It is assumed that the battery capacity of the 26650 battery with the same ternary material is generally about 5200mAh, while that of the 18650 battery is mostly about 2600mAh.
  3. Application environment comparison
    18650 lithium battery is widely used in lighting battery, industrial supporting lithium battery pack, electric tool battery, electric bicycle battery, power lithium battery pack, etc., while 26650 lithium battery is widely used in integrated solar street lamp lithium battery pack, energy storage station, solar energy storage battery, etc.
    Development Status and Historical Reasons of 18650 Lithium Battery and 26650 Lithium Battery
    18650 lithium battery is a standard lithium battery model successfully developed by Japanese SONY Company in 1992. It was born under the material level and manufacturing level at that time, and was generated by integrating the battery cost and performance balance. Among notebook, camera, toy, lighting equipment and other products, 18,650 battery has been very mature and stable after years of development; At the same time, because of its long history, it has formed a relatively mature market application.
    With the development of new energy application, the status of 18650 lithium battery has been impacted gradually. Larger cylindrical lithium battery products and square battery products have appeared in the market, such as 26650 lithium battery, 21700 lithium battery and square battery with various specifications, which have relatively good stability and consistency.
    Since the power battery requires thousands of batteries to be used together, higher requirements are put forward for the consistency and safety of the battery cell products. The smaller the number of battery cells managed by the power battery system with the same capacity, the higher the relative safety and the longer the service life. This puts forward higher requirements for the single capacity of power battery, so as to reduce the use of the number of cells and reduce the pressure on the safety and life of power battery.
    Overall, the 18650 lithium battery has better performance. 26650 lithium battery is the best partner of flashlight, and other electronic devices use less, so its popularity is not high.

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