Energy plays a very important role in human life. At this stage, energy consumption mainly depends on traditional fossil energy, which is a limited, non-renewable energy source. With the continuous mining and depletion of fossil energy, it is urgent to find some new forms of energy. Ocean wave energy has the advantages of abundant reserves and less influenced by environmental factors. It is one of the potential energy sources that can be applied on a large scale. However, the exploration of wave energy collection in various countries in the world in recent decades is mostly based on traditional electromagnetic generators. Due to the limitations of their own working principles, it is difficult to effectively collect such low-frequency, random energy. Wang Zhonglin, a foreign academician of the Chinese Academy of Sciences, director of the Beijing Institute of Nano-Energy and Systems at the Chinese Academy of Sciences, and a professor at the Georgia Institute of Technology, first proposed a friction nano-generator based on triboelectric charging and electrostatic induction effects in 2012. Convert mechanical energy in the surrounding environment into electrical energy. At the same time, the spherical structure friction nano-generator has been used to collect water wave energy due to its many advantages such as light weight, low motion resistance in water waves and easy arraying. However, in the previous research and development work, this spherical friction nano-generator also has shortcomings such as small output current, which limits its practical application. Recently, under the guidance of Wang Zhonglin, a research team composed of master students Xiao Tianxiao, Liang Qian and associate researcher Jiang Tao and others prepared a spherical friction nano-generator that can efficiently collect water wave energy by coupling springs and multilayer structures. Multiple basic power generating units are integrated in each spherical shell space to form a multi-layer structure. The output current and power of the generator are greatly improved. The current output of the single ball is more than two orders of magnitude higher than the previous spherical generator. The maximum output power of the single ball is 7.96 mW. Subsequently, a spherical generator array was prepared. Through arraying and energy storage, a self-driving system for water temperature measurement was constructed, demonstrating the important application prospects of nano generators in blue energy collection. Related achievements were published in the recent "Advanced Functional Materials" (Adv. Funct. Mater) titled Spherical Triboelectric Nanogenerators Based on Spring-Assisted Multilayered Structure for Efficient Water Wave Energy Harvesting. (a) Schematic diagram of spherical friction nano-generator based on spring and multilayer structure; (b)-(c) output current and power of spherical generator array at different water wave frequencies; (d) construction of self-driving system for water temperature measurement . Stainless Steel Austenitic Tube Austenitic Pipe,Austenitic Tube,Stainless Seamless Tubing,Annealed Stainless Steel Tubing Zhejiang Ruimai Stainless steel Tube Co.,Ltd. , https://www.ruimaitube.com