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Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
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source:Industry News release time:2025-02-20 Hits: Popular:AG11 battery
The cycle life of lithium - ion batteries is a crucial parameter that determines their long - term usability and economic viability. It refers to the number of charge - discharge cycles a battery can undergo before its capacity drops to a certain level, typically 80% of its original capacity.
Several factors influence the cycle life of lithium - ion batteries. One of the primary factors is the materials used in the battery's electrodes. For example, lithium - iron - phosphate (LFP) cathodes generally offer better cycle life compared to some other cathode materials. LFP cathodes have a relatively stable crystal structure, which can withstand the repeated insertion and extraction of lithium ions during charging and discharging. This stability reduces the degradation of the electrode over time, thus extending the cycle life. In contrast, some high - energy - density cathode materials like lithium - nickel - cobalt - aluminum - oxide (NCA) may have a shorter cycle life due to more complex chemical reactions during cycling, which can lead to the formation of side - products and the degradation of the electrode structure.
The charging and discharging rate also significantly affects the cycle life. Fast charging, which involves high - current charging, can cause the lithium ions to move too quickly within the battery. This may lead to the formation of lithium dendrites on the anode surface. Lithium dendrites are needle - like structures that can grow during fast charging and discharging. If
they penetrate the separator between the anode and the cathode, they can cause a short - circuit, reducing the battery's capacity and cycle life. Therefore, using a moderate charging and discharging rate, within the recommended range specified by the battery manufacturer, is crucial for maximizing the cycle life.
Temperature is another important factor. Operating a lithium - ion battery at extreme temperatures, either too high or too low, can accelerate its degradation. High temperatures can increase the rate of chemical reactions within the battery, leading to the breakdown of the electrolyte and the formation of solid - electrolyte - interphase (SEI) layers on the electrode surfaces. These processes can reduce the battery's capacity and cycle life. On the other hand, low temperatures can slow down the movement of lithium ions, increasing the internal resistance of the battery and also causing capacity loss over time.
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