In the context of the global promotion of energy transformation and sustainable development, efficient, environmentally friendly and low-cost energy storage technology has become the focus. Lithium-sulfur batteries, as a highly promising next-generation energy storage system, are attracting widespread attention from all walks of life.
Lithium-sulfur batteries use lithium metal as the negative electrode and sulfur as the positive electrode, and have many advantages that traditional lithium-ion batteries cannot achieve. Its theoretical energy density is as high as 2600 Wh/kg, which is several times that of traditional lithium-ion batteries, which means that it can provide equipment with longer-lasting endurance, especially in the field of electric vehicles, which can greatly increase the vehicle's mileage and alleviate mileage anxiety. At the same time, sulfur is abundant in the earth's crust, low in price, and relatively environmentally friendly during production and use, which makes lithium-sulfur batteries have significant cost advantages and environmental benefits when used on a large scale.
In recent years, researchers have made a series of breakthroughs in the field of lithium-sulfur batteries. Through material innovation, such as the development of new electrode materials, the design of functional diaphragms and solid electrolytes, the shuttling effect of polysulfides and the growth of lithium dendrites have been effectively suppressed; with the help of advanced preparation processes, ultrasonic spraying technology is used to achieve precise construction of electrode coatings, which significantly improves the overall performance of the battery. This shows that lithium-sulfur batteries are gradually overcoming technical barriers and moving towards a new stage of large-scale commercial application. In the future, lithium-sulfur batteries are expected to reshape the energy storage landscape and inject strong impetus into sustainable development.
1. Material utilization and cost control
The utilization rate of precious metal catalysts (such as Pt and Ru) reaches 90%, and the slurry consumption is reduced by 50%. This advantage is particularly significant for lithium-sulfur batteries containing expensive catalysts such as Mo₂C and polyphthalocyanine cobalt. The equipment can reduce the amount of precious metals used in the diaphragm coating to 1/4 of traditional spraying, while improving uniformity (thickness error <±5%).
2. Process compatibility and scale potential
Ultrasonic spraying is compatible with roll-to-roll (R2R) production lines, which can achieve large-scale continuous production of lithium batteries. Multi-nozzle array system, coating thickness control accuracy of ±2%. Greatly improve production efficiency.
3. Ultrasonic nozzles are not blocked
Ultrasonic spraying can handle high-viscosity slurries (such as sulfide solid electrolyte slurries) without the risk of clogging. The equipment is equipped with ultrasonic dispersion function and magnetic stirring function to prevent solution precipitation and accumulation.
