Polymer auxiliary materials can improve the safety of lithium batteries

Lithium battery is an important new energy storage device, and its performance has a direct impact on the service life and performance of the energy storage device. As an important part of lithium battery, polymer auxiliary materials have many advantages.

Firstly, polymer auxiliary materials can improve the safety performance of lithium batteries. Lithium batteries are prone to thermal runaway and safety accidents, such as short circuit, overcharge and overdischarge, due to the extremely high activity of lithium in the charging and discharging process. Polymer auxiliary materials can prevent direct contact between lithium ions and electrons by forming a stable solid electrolyte layer, reducing the risk of thermal runaway and improving the safety performance of lithium batteries.

Secondly, polymer auxiliary materials can improve the electrochemical performance of lithium batteries. The performance of lithium batteries mainly depends on the conductivity of the electrolyte and the transmission rate of lithium ions between the positive and negative materials. Polymer auxiliary materials can increase the transmission rate of lithium ions by increasing the ionic conduction channel, thus reducing the internal resistance of the battery and improving the energy density and power density of the battery. In addition, polymer auxiliary materials can also improve the cycle stability and capacity retention rate of the battery, extending the service life of the battery.

Again, polymer auxiliary materials have high chemical stability and aging resistance. Lithium batteries will be corroded and oxidised by electrolyte and electrode materials during long time use, leading to a gradual decline in battery performance. Polymer auxiliary materials have good chemical stability and aging resistance, which can effectively resist the corrosion and oxidation of the electrolyte and electrode materials on the battery, and improve the stability and durability of the battery.

Finally, polymer auxiliary materials have the advantages of lower cost and easy preparation. Polymer auxiliary materials can be prepared at low cost by simple solution mixing or sol-gel method, etc., which has lower production cost and higher production efficiency compared with traditional inorganic auxiliary materials. This facilitates the mass production of lithium batteries and reduces the cost of lithium batteries, promoting the popularity and application of lithium batteries.