How is the performance stability of polymer lithium-ion battery pack during charge and discharge cycles?
Publish Time: 2025-02-17
The performance stability of polymer lithium-ion battery pack during charge and discharge cycles is relatively good, which is mainly due to its unique structure and material properties.1. Long cycle lifePolymer lithium-ion battery packs usually have a high cycle life. After multiple charge and discharge cycles, their capacity decay is relatively small. For example, after 300 cycles, the capacity of some high-performance polymer lithium-ion batteries can still be maintained between 92% and 94%, which is far higher than the national standard and reaches the advanced level of similar international products. This means that during long-term use, polymer lithium-ion battery packs can maintain a high energy output capacity to meet various application requirements.2. Stable performancePolymer lithium-ion battery packs show good performance stability during charge and discharge. This is mainly reflected in the following aspects:Small internal resistance: The internal resistance of polymer lithium-ion batteries is relatively small, which helps to reduce energy loss during charge and discharge and improve the efficiency of the battery pack.Good rate charge and discharge performance: polymer lithium-ion battery pack can maintain good performance under different rate charge and discharge conditions. This shows that the battery pack can still output stable energy under high rate charge and discharge conditions.Good cycle stability: During the cycle, the battery performance parameters such as median voltage and constant current charging of polymer lithium-ion battery pack remain stable. This reflects that the battery pack has good cycle stability and can maintain stable performance output during long-term use.3. High safety performanceThe safety performance of polymer lithium-ion battery pack in charge and discharge cycle is also relatively high. This is mainly due to the fact that its electrolyte is gel or solid, which is not prone to leakage, thereby reducing the risk of safety accidents such as short circuit caused by electrolyte leakage. In addition, most polymer lithium-ion battery packs are also designed with protection circuits. When the charging voltage reaches the set safety upper limit, the protection circuit will automatically cut off the charging current to prevent overcharging from causing abnormal reactions of chemical substances inside the battery cell. These safety measures jointly ensure the safety of polymer lithium-ion battery pack in charge and discharge cycle.In summary, polymer lithium-ion battery pack shows good performance stability in charge and discharge cycle. Its long cycle life, stable performance output and high safety performance make the polymer lithium-ion battery pack have broad application prospects in various application scenarios.
