Space Volume Effect in Tube Liquid–Solid Triboelectric Nanogenerator for Output Performance Enhancement
Hao Zhang, Guozhang Dai, Yuguang Luo, Tingwei Zheng, Tengxiao Xiongsong, Kai Yin, Junliang Yang
Abstract
Due to the advantages of simple structure and flexibility for energy harvesting, the tube liquid–solid triboelectric nanogenerator (TLS-TENG) has attracted much attention. However, TLS-TENG is limited by low output power due to its low surface charge density and transfer efficiency. Herein, the space volume effect is proposed in TLS-TENG, and the space volume effect TLS-TENG (SVE-TLS-TENG) is constructed with a great enhancement in the output performance. Through the space volume effect, the open-circuit voltage ( U oc ), short-circuit current ( I sc ), and transfer charge ( Q tc ) of SVE-TLS-TENG can be improved by 3.5 times, 2.3 times, and 2 times, respectively. The SVE-TLS-TENG not only boasts high output performance for harvesting low-frequency and high-entropy motion energy, but its output displacement current can also serve as a compact signal generator for underwater wireless communication. The proposed space volume effect and constructed SVE-TLS-TENG offer new insight for the design and large-scale application of LS-TENG.