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<p>Maximizing the surface charge density of triboelectric nanogenerator (TENG) is critical for powering distributed IoT sensors. Although inorganic ceramic materials exhibit extremely high dielectric constants, the ceramic and the metal electrode exhibit inefficient contact electrification, which in turn severely limits the output performance of TENGs based on such materials. In this work, we employ commercial BaTiO<sub>3</sub> ceramic sheets stripped from ceramic capacitors as the dielectric layer. By arranging these ceramics in an array and combining them with flexible electrodes, we construct a ceramic-based sliding mode TENG. With the further integration of a charge excitation strategy, the TENG achieves a maximum output charge density of 0.49 mC/m<sup>2</sup> under an external excitation voltage of 1200&#xa0;V, representing a 54-fold increase compared to the pure ceramic-based TENG without charge excitation. By leveraging a charge excitation strategy, this work circumvents the inherent limitation of inefficient contact electrification in ceramics, presenting a new paradigm for high-performance, cost-effective, and scalable inorganic material-based TENG systems.</p>

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Ceramic-based sliding mode charge-excitation triboelectric nanogenerator for energy harvesting

  • 期刊论文

  • 发表日期：

    2026年8月5日

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  • Jingyuan You,
  • Zhelin Jin,
  • Jie Cao,
  • Yu Chang,
  • XiaoDong Wang,
  • Rui Lei,
  • Guanggui Cheng

摘要

Maximizing the surface charge density of triboelectric nanogenerator (TENG) is critical for powering distributed IoT sensors. Although inorganic ceramic materials exhibit extremely high dielectric constants, the ceramic and the metal electrode exhibit inefficient contact electrification, which in turn severely limits the output performance of TENGs based on such materials. In this work, we employ commercial BaTiO3 ceramic sheets stripped from ceramic capacitors as the dielectric layer. By arranging these ceramics in an array and combining them with flexible electrodes, we construct a ceramic-based sliding mode TENG. With the further integration of a charge excitation strategy, the TENG achieves a maximum output charge density of 0.49 mC/m2 under an external excitation voltage of 1200 V, representing a 54-fold increase compared to the pure ceramic-based TENG without charge excitation. By leveraging a charge excitation strategy, this work circumvents the inherent limitation of inefficient contact electrification in ceramics, presenting a new paradigm for high-performance, cost-effective, and scalable inorganic material-based TENG systems.