18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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3.7v 18650 lithium battery

release time:2024-04-22 Hits:     Popular:AG11 battery

  The structure of ternary 3.7v 18650 lithium battery

  The ternary element of ternary 3.7v 18650 lithium battery refers to the three elements Ni, Co, Mn, each of which plays an important role, and the characteristics of each element also affect the battery performance.

  The principle of ternary 3.7v 18650 lithium battery

  Among the three elements here, Ni and Co are specific metal materials, and Mn does not participate in electrochemical reactions. Generally speaking, the higher the specific metal content, the greater the battery capacity. However, when the Ni content is too high, Ni2+ will occupy the parts of the lithium-ion battery, aggravating the mixing of positive ions, thereby causing a reduction in volume. Co is also a specific metal material, but it can have the function of inhibiting the mixing of positive ions, thereby stabilizing the lamellar structure of the material. As a non-specific metal material, Mn plays a reliable role in improving safety.

  Advantages and disadvantages of ternary lithium batteries

  Advantage:

  The specific energy is high, which also means that the battery life of the ternary 3.7v 18650 lithium battery is stronger when encountering the same volume, weight, and even the same ampere-hour.

  Voltage platform The high voltage platform is an important indicator of battery specific energy, which determines the basic efficiency and cost of the battery. The higher the voltage platform, the greater the specific capacity.

  defect:

  The safety factor is poor. Many reviews have shown that large-capacity ternary batteries are difficult to safely test for needle sticks and overcharging.

  Poor heat resistance

  The theoretical service life of ternary lithium batteries with poor service life is about 800 cycles, which is at the middle level among commercial rechargeable lithium batteries.

  High power charge and discharge difference

  The elements are harmful. The temperature of the high-power ternary 3.7v 18650 lithium battery rises significantly after charging. The CO2 released after high temperature is very easy to ignite.


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