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In a drone technology advancement, Chinese scientists have successfully integrated a high-energy density lithium battery into a composite-wing aerial drone, significantly enhancing its performance. The drone, developed by the Shenyang Institute of Automation under the Chinese Academy of Sciences (CAS), underwent a successful flight test in the Dalian region of Liaoning province, demonstrating impressive capabilities.
According to China Daily, during the test flight over Changhai county, the drone was able to stay airborne for over three hours. A key highlight of this achievement is the drone’s new high-energy density battery, which boasts a remarkable 400 watt-hours per kilogram, a notable improvement from its previous 340 watt-hours per kilogram. According to the scientists, this upgrade led to an increase in drone performance by 20 to 40 percent, making it more efficient and reliable in various operational conditions.
One of the most important features of this new battery is its ability to function in extreme temperatures, ranging from as low as -40°C to as high as 60°C. This makes it suitable for use in harsh environments, including cold regions where traditional batteries might fail.
The battery’s development was spearheaded by Professor Chen Zhongwei from the Dalian Institute of Chemical Physics, CAS. According to China Daily, Chen’s team innovated by optimizing the battery’s materials and design. The newly-designed high-nickel ternary cathode and the improved silicon-carbon composite anodes expand storage capacity, while a custom ultra-low-temperature electrolyte ensures functionality in frigid conditions. A new composite separator further enhances safety, ensuring durability and stability across extreme temperature ranges.
The improved lithium battery has promising applications for a wide range of drone missions, including rescue operations, reconnaissance, and surveillance, particularly in tough conditions. The successful integration of this high-energy battery into an industrial drone marks a key step toward more efficient and versatile aerial systems capable of longer flight times and enhanced stability.
