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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CR2025 battery

release time:2024-08-28 Hits:     Popular:AG11 battery

Analysis of the characteristics and advantages of CR2025 battery

 

Characteristics of CR2025 battery

 

Lithium titanate (LTO) materials are used as negative electrode materials in batteries. Due to their own characteristics, the materials and electrolytes are prone to mutual use and gas precipitation occurs during the charge and discharge cycle reaction. Therefore, general CR2025 battery are prone to bloating, resulting in bulging of the battery cells, and the electrical performance will also be greatly reduced, greatly reducing the theoretical cycle life of CR2025 battery. Detection data shows that general CR2025 battery will bloat after about 1500-2000 cycles, resulting in inability to use normally. This is also an important reason restricting the large-scale use of CR2025 battery.

 

The performance improvement of lithium titanate (LTO) batteries is a comprehensive reflection of the improvement of the performance of individual materials and the organic integration of various key materials. In order to meet the requirements of fast charging and long service life, in addition to negative electrode materials, other key raw materials of lithium-ion batteries (including positive electrode materials, diaphragms, and electrolytes) are also required. At the same time, combined with the relevant experience of special engineering processes, a non-flatulent lithium titanate LpTO battery product was finally formed, and it was first used in batches on electric buses.

 

The detection data shows that under the conditions of 6C charging, 6C discharging, and 100% DOD, the cycle life of lithium titanate LpTO single battery exceeds 25,000 times, and the remaining capacity exceeds 80%. At the same time, the flatulence phenomenon of the battery cell is not obvious and does not affect its life; and the actual use of Chongqing fast-charging pure electric buses also shows that after the battery is assembled, the electrical performance is also quite excellent, which can ensure the daily commercial operation of pure electric buses.

 

Analysis of lithium titanate ion battery_Advantages and disadvantages of lithium titanate ion battery

 

Advantages of lithium titanate ion battery

 

1. Good safety: The most important point of electric vehicle battery is high safety. Due to its high equilibrium potential, lithium titanate will not form lithium dendrites at the negative electrode, and has good safety.

 

2. Good cycle performance: Because it is a zero-strain material, it will not undergo structural changes during the charging and discharging process, and has very excellent cycle performance.

 

3. Fast charging and discharging: The diffusion coefficient of lithium ions in lithium titanate crystals is 2×10-8cm-2/s, which is one order of magnitude more than the graphite negative electrode. It can be charged and discharged quickly. Fast charging capability is an important indicator for evaluating electric vehicle batteries.

 

4. The operating temperature range is -30~60: The embedding and extraction capabilities of lithium will decrease at low temperatures, especially the embedding capability. The lithium titanate negative electrode will not cause short circuit or deterioration of the negative electrode when charged at -30. This is something that graphite negative electrodes cannot do. It can be quickly charged and discharged in a wide range of environments and is suitable for automotive use.

 

5. Low self-discharge: The positive electrode uses conventional lithium manganate and the negative electrode uses lithium titanate. The battery has a capacity residual rate of 88% and a capacity recovery rate of more than 95% after being stored at 60 degrees for 28 days. Indicates: The articles published on this website are all from the Internet. If there is any infringement, please contact us to delete it.


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