Development trend of polymer auxiliary materials

With the wide application of lithium batteries, the demand for polymer auxiliary materials is also increasing. Polymer auxiliary materials play a key role in lithium batteries, which can improve the performance and safety of lithium batteries. In the future, the development trend of polymer auxiliary materials mainly includes the following aspects:

1. Improvement of thermal stability: When lithium batteries are operated at high temperatures, the solvents and additives in the electrolyte are prone to decomposition or volatilisation, leading to a decline in battery performance or even short circuit. Therefore, polymer auxiliary materials need to have high thermal stability and be able to withstand high temperature environment.

2. Improvement of electrochemical stability: During the charging and discharging process of lithium battery, polymer auxiliary materials need to be able to stably withstand the embedding and de-embedding of lithium ions in the electrolyte to avoid side reactions or losses.

3. Improvement of electrical conductivity: polymer auxiliary materials need to have high electrical conductivity to improve the discharge and charge rate of lithium battery. At present, many researches are focused on improving the conductivity of polymer auxiliary materials to meet the growing demand for high-power lithium batteries.

4. Improvement of mechanical strength: polymer auxiliary materials need to have high mechanical strength to withstand the stress and deformation of lithium batteries in the process of cyclic charging and discharging over a long period of time to avoid structural damage.

5. Improvement of safety: polymer auxiliary materials need to have high heat resistance and flame retardancy, which can reduce the risk of overheating, combustion and explosion of lithium batteries. In addition, polymer auxiliary materials also need to have low volatility and low toxicity to reduce the potential harm to the environment and human body.

6. Material sustainability: the development trend of polymer auxiliary materials is also developing in the direction of sustainability, emphasising the use of renewable materials, improve the recyclability and degradability of materials to reduce the impact on the environment.

In summary, the future development trend of polymer auxiliary materials for lithium batteries mainly includes improving thermal stability, electrochemical stability, electrical conductivity and mechanical strength, enhancing safety, and focusing on material sustainability. These development trends will further promote the performance and safety of lithium batteries to meet the growing market demand for lithium batteries.