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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button battery cr1620

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

  The cycle life of a lithium battery refers to the time it takes for the battery's performance attenuation to reach a certain amount after a certain frequency of battery charging cycles under a certain current level. What does this relate to?

  1. Accumulation of metallic lithium: generally occurs on the surface of the negative level. When the lithium-ion battery is transferred to the surface of the negative stage, for some reasons, it cannot enter the active material of the negative stage, thereby producing stable chemical substances. That is, after the electronic device is obtained, it accumulates on the surface of the negative stage and turns into metallic lithium. , no longer participates in the subsequent circulation process, resulting in volume reduction.

  Second, the dissolution of the battery cathode material: Although the lithium-containing hydroxide used as the battery cathode material has sufficient reliability, it will continue to dissolve during long-term use, resulting in a certain amount of photocatalytic plasticity. and flammable gases, thus destroying the volume balance between electrical stages and causing irreversible volume damage. This situation is especially obvious when overcharging the battery, and sometimes strong dissolution and gas release may occur, which not only affects the battery power, but also creates serious safety hazards.

  3. Harm of electrolyte solution: During the continuous circulation process, due to the limitations of chemical stability and heat resistance, the electrolyte solution will continue to dissolve and evaporate, and accumulate for a long time, which will reduce the total output of the electrolyte solution and cannot fully penetrate. If the positive and negative electrode materials are moistened, the battery charging response will not be complete, resulting in a reduction in the actual use volume.

  4. External application factors: button battery cr1620 have certain application standards and scope, such as battery charging voltage, battery charging rate, operating temperature range, storage temperature range, etc. However, in specific applications, misuse beyond the limit is very common. Long-term unscientific use will cause irreversible chemical changes inside the rechargeable battery, leading to the destruction of the rechargeable battery system, accelerating the embrittlement of the rechargeable battery, and resulting in a significant reduction in the service life of the circulation system. , in serious cases, it will cause production safety accidents.

  For an ideal lithium battery, the volume balance will not change during the cycle. The original volume of each cycle should be a certain value, but the actual situation is much more complicated. Any side effects that can cause or consume lithium-ion batteries will cause changes in battery balance. Once the battery balance changes, these changes are irreversible and can accumulate over multiple cycles, thus seriously affecting the use of button battery cr1620. life.


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