Contribution of Ferromagnetic Medium to the Output of Triboelectric Nanogenerators Derived from Maxwell's Equations,Advanced Energy Materials

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Contribution of Ferromagnetic Medium to the Output of Triboelectric Nanogenerators Derived from Maxwell's Equations
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2021-03-27 , DOI: 10.1002/aenm.202003921
Yahui Li _{1,

2} , Guizhong Li ₃ , Penglei Zhang _{1,

2} , Haodong Zhang _{1,

2} , Chao Ren _{1,

2} , Xian Shi _{1,

2} , Han Cai _{1,

2} , Yanxin Zhang _{1,

2} , Yusen Wang _{1,

2} , Zhanfeng Guo _{1,

2} , Hongfang Li _{1,

2} , Guifu Ding ₁ , Haogang Cai ₄ , Zhuoqing Yang ₁ , Chi Zhang _{5,

6} , Zhong Lin Wang _{5,

6,

7}

Affiliation

Triboelectric nanogenerators (TENGs) use the displacement current as a driving force to convert mechanical energy into electric power, which has made great contributions to micro-nano energy harvesting, self-powered systems, and the sustainable development of mankind. To date, it is accepted that the output of TENGs is only dependent on the polarization effect. This study reveals that this view is incomplete and, in reality, the magnetization effect also makes a significant contribution to the output of TENGs. For the first time, a novel insight on the output of TENGs is discovered through the theoretical derivation and analysis of Maxwell's equations in ferromagnetic medium. Experimentally, TENGs based on ferromagnetic media are constructed, which exhibit higher output than that of non-ferromagnetic media based. Interestingly, the output behavior of ferromagnetic media based TENGs is strongly related to the external magnetic field ambient, which is well demonstrated. The discovered output characteristics of TENGs are precisely derived from the working principle of TENGs, simultaneously, a completed and unified theoretical system is constructed for TENGs. This significant discovery and theory will be an indispensable supplement to the existing research on TENGs and also provide a general guidance and deeper understanding of the TENG.

中文翻译：

铁磁介质对由麦克斯韦方程导出的摩擦纳米发电机输出的贡献

摩擦纳米发电机（TENGs）利用位移电流作为驱动力将机械能转化为电能，为微纳能量收集、自供电系统和人类的可持续发展做出了巨大贡献。迄今为止，人们普遍认为 TENG 的输出仅取决于极化效应。这项研究表明，这种观点是不完整的，实际上，磁化效应也对 TENG 的输出做出了重大贡献。通过对铁磁介质中麦克斯韦方程的理论推导和分析，首次发现了对 TENG 输出的新见解。实验上，构建了基于铁磁介质的 TENG，其输出比基于非铁磁介质的输出更高。有趣的是，基于铁磁介质的 TENG 的输出行为与外部磁场环境密切相关，这一点得到了很好的证明。所发现的TENGs输出特性正是源于TENGs的工作原理，同时为TENGs构建了完整统一的理论体系。这一重大发现和理论将是对现有 TENG 研究不可或缺的补充，也将为 TENG 提供一般指导和更深入的理解。

更新日期：2021-06-02

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