Dynamically self-adjustable liquid-liquid and self-adaptive softcontact solid-solid triboelectric nanogenerator for wave energy harvesting  

作　　者：Yong Long Bingqi Zhao Jianan Niu Yuxiu Liu Wei Sha Jiangwen Wang Zhong Lin Wang Weiguo Hu 

机构地区：[1]Guangzhou Institute of Blue Energy,Knowledge City,Huangpu District,Guangzhou 510555,China [2]Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing 101400,China [3]School of Nanoscience and Technology,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Nano Research》2025年第1期404-414,共11页纳米研究（英文版）

基　　金：support from the National Natural Science Foundation of China(Nos.52173298 and 52192611);the National Key R&D Project from Minister of Science and Technology(No.2021YFA1201603);Beijing Natural Science Foundation(No.Z230024);the Fundamental Research Funds for the Central Universities.

摘　　要：Water wave energy exhibits great potential toalleviate the global energy crisis. However, harvesting andutilizing wave energy are challenging due to its irregularity,randomness, and low frequency. Triboelectric nanogenerators(TENGs) have gained significant attention for harvesting waveenergy with high efficiency. This study presents a novelellipsoidal, pendulum-like TENG integrating both liquid-liquid(L-L) and solid-solid (S-S) triboelectricity (LS-TENG). Thisinnovative design enables continuous wave energy harvestingand self-powered marine environment monitoring under variousconditions, including temperature, humidity, and light intensity. The binary immiscible liquids within the LS-TENG’s innersoft balloon create dynamic, and self-adjustable L-L contact interfaces, significantly increasing the L-L contact area andenhancing L-L contact electrification (CE). The unique self-adaptive, soft S-S contact increases the S-S contact areacompared to traditional hard point contact, better adapting to the irregular movements of waves and promoting efficient S-SCE. The LS-TENG achieves highly efficient wave energy harvesting by coupling L-L and S-S CE. Furthermore, the uniquesoft contact design protects the S-S interfaces from mechanical wear and damage during long-term work. The LS-TENG’snovel structure provides an innovative and effective way for water wave energy harvesting.

关 键 词：SELF-ADAPTIVE soft-contact solid-solid LIQUID-LIQUID self-adjustable triboelectric nanogenerator 

分 类 号：TM31[电气工程—电机] TB383[一般工业技术—材料科学与工程]