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Get Free AccessIt is an increasingly mature application solution that triboelectric nanogenerator (TENG) supplies power to electronic devices through its power management system (PMS). However, the previous PMS is able to manage a limited voltage magnitude and the energy storage elements are limited to capacitors. This work proposes an ultrahigh voltage PMS (UV-PMS) to realize the charging of commercial lithium cells (LCs) by TENG. The design of UV-PMS enables energy management of TENGs with ultrahigh open-circuit voltages up to 3500 V and boosts the peak charging current from 30.9 µA to 2.77 mA, an increase of 89.64 times. With the introduction of UV-PMS, the effective charging capacity of LC charged by a TENG at a working frequency of 1.5 Hz for 1 h comes to 429.7 µAh, making a 75.3 times enhancement compared to charging by TENG directly. The maximum charging power comes to 1.56 mW. The energy storage efficiency is above 97% and the overall charge efficiency can be maintained at 81.2%. This work provides a reliable strategy for TENG to store energy in LC, and has promising applications in energy storage, LC's life, and self-powered systems.
Yiming Dai, Guoxu Liu, Jie Cao, Beibei Fan, Weilin Zhou, Yongbo Li, Jun Yang, Ming Li, Jianhua Zeng, Yuanfen Chen, Zhong Lin Wang, Chi Zhang (2024). Effective Charging of Commercial Lithium Cell by Triboelectric Nanogenerator with Ultrahigh Voltage Energy Management. , 11(30), DOI: https://doi.org/10.1002/advs.202404253.
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Type
Article
Year
2024
Authors
12
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.1002/advs.202404253
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