The eco-responsible lead-free piezoelectric ceramics have been intensively searched for more than a decade, however, the final goal to replace toxic ceramics like lead zirconate titanate (PZT) with lead-free compounds, having comparable or even better performance has not yet been reached. In this road, the lead-free ceramics Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃ (BCZT), possessing excellent dielectric, ferroelectric, and piezoelectric properties are regarded as serious candidates for the PZT replacement. Besides, nanostructuring BCZT is of paramount importance to enhance these functionalities even more. Here, BCZT multipodes are designed by template-growth hydrothermal synthesis using hydrogen zirconate titanate nanowires. We demonstrate that the fabricated BCZT multipodes exhibit high dielectric permittivity of 5300 with a temperature stability coefficient of ±5.9% between 20 and 140 °C. A significant recovered energy density of 315.0 mJ/cm³ with high thermal stability and high energy storage efficiency of 87.4%, and enhanced large-signal piezoelectric coefficient $d_{33}^{\ast }$ (310 pm/V) are found. Compared to the traditional BCZT ceramics reported in the literature, relying on high-temperature processing, our sample exhibits boosted energy storage parameters at a much lower temperature. These outcomes may offer a new strategy to tailor eco-responsible relaxor ferroelectrics toward superior energy storage performance for ceramic capacitor applications.

对生态负责任的无铅压电陶瓷已经进行了十多年的深入研究，然而，用无铅化合物替代锆钛酸铅 (PZT) 等有毒陶瓷，具有相当甚至更好的性能的最终目标尚未实现。已达到。在这条道路上，无铅陶瓷 Ba _0.85 Ca _0.15 Zr _0.1 Ti _0.9 O ₃(BCZT) 具有优异的介电、铁电和压电特性，被认为是替代 PZT 的重要候选者。此外，纳米结构 BCZT 对于进一步增强这些功能至关重要。在这里，BCZT 多脚体是通过使用锆钛酸氢纳米线的模板生长水热合成设计的。我们证明了制造的 BCZT 多极体表现出 5300 的高介电常数，在 20 到 140°C 之间具有 ±5.9% 的温度稳定性系数。显着的回收能量密度为 315.0 mJ/cm ³，具有高热稳定性和 87.4% 的高储能效率，以及增强的大信号压电系数$d_{33}^{*}$(310 pm/V) 被发现。与文献报道的传统 BCZT 陶瓷相比，我们的样品依靠高温处理，在更低的温度下表现出更高的储能参数。这些结果可能提供一种新的策略来定制生态负责任的弛豫铁电体，以实现陶瓷电容器应用的卓越储能性能。