Silver–zinc (Ag–Zn) batteries are regarded as a promising power source for flexible and wearable electronics due to their high safety, high energy density, and steady output voltage. However, the weak flexibility and poor cycle performance significantly limit the practical use of Ag–Zn batteries. In this work, we propose a novel flexible fibrous quasi-solid-state mild Ag–Zn battery with superb cycling performance by using a mild electrolyte and highly flexible binder-free electrodes. Carbon nanotube fibers serve as the current collector to improve the flexibility of flexible Ag–Zn cells. The mild electrolyte containing ZnCl₂ and Na₂SO₄ not only prevents the dissolution of the Ag cathode but also impedes the heterogeneous growth of Zn dendrites. With 1500 cycles at 1 A g⁻¹, the fibrous quasi-solid-state mild Ag–Zn battery achieves a remarkable capacity retention of 93.1%. Moreover, this novel flexible quasi-solid-state mild Ag–Zn battery can deliver a high capacity of 103.51 mA h g⁻¹ at 0.1 A g⁻¹. The fibrous quasi-solid-state mild Ag–Zn battery demonstrates remarkable flexibility and excellent bending ability (after 600 bending cycles with capacity retention of 89%). This pioneering work sheds light on the establishment of high-performance quasi-solid-state mild Ag–Zn batteries for burgeoning wearable electronics.

中文翻译：

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具有 Na2SO4 电解液添加剂的超耐用柔性纤维状温和准固态 Ag-Zn 电池

银锌（Ag-Zn）电池由于其高安全性、高能量密度和稳定的输出电压而被认为是用于柔性和可穿戴电子产品的有前途的电源。然而，柔韧性差和循环性能差严重限制了Ag-Zn电池的实际应用。在这项工作中，我们提出了一种新型柔性纤维准固态温和 Ag-Zn 电池，通过使用温和的电解质和高度柔性的无粘合剂电极，具有出色的循环性能。碳纳米管纤维用作集电器以提高柔性 Ag-Zn 电池的柔韧性。_{含有ZnCl 2}和Na ₂ SO ₄的温和电解质不仅可以防止 Ag 阴极的溶解，还可以阻止 Zn 枝晶的异质生长。在 1 A g ^-1下循环 1500 次后，纤维状准固态软银锌电池实现了 93.1% 的显着容量保持率。此外，这种新型柔性准固态温和 Ag-Zn 电池可以在 0.1 A g ^{-1下提供 103.51 mA hg -1}的高容量。纤维状准固态软银锌电池表现出卓越的柔韧性和出色的弯曲能力（600 次弯曲循环后容量保持率为 89%）。这项开创性工作揭示了为新兴的可穿戴电子产品建立高性能准固态温和 Ag-Zn 电池。