Zinc ionic conducting-based gel polymer electrolytes (GPEs) were fabricated from carboxymethyl cellulose (CMC) and three different zinc salts in a mass ratio ranging within 0–30 wt%. The effects of zinc salt and loading level on the structure, thermal, mechanical, mechanical stability, and morphological properties, as well as electrochemical properties of the GPEs films, were symmetrically investigated. The mechanical properties and mechanical stability of CMC were improved with the addition of zinc acetate, zinc sulphate, and zinc triflate, approaching the minimum requirement of a solid state membrane for battery. The maximum ionic conductivity of 2.10 mS cm⁻¹ was achieved with the addition of 15 wt% zinc acetate (ZnA), GPE_A15. The supported parameters, indicating the presence of the amorphous region that likely supported Zn²⁺ movement in the CMC chains, were clearly revealed with the increase in the number of mobile Zn²⁺ carriers in FT-IR spectra and the magnitude of ionic transference number, the decrease of the enthalpy of fusion in DSC thermogram, and the shifting to lower intensity of 2θ in XRD pattern. The developed CMC/ZnA complex-based GPEs are very promising for their high ionic conductivity as well as good mechanical properties and the ability for long-term utilization in a zinc ion battery.

基于锌离子导电的凝胶聚合物电解质（GPE）由羧甲基纤维素（CMC）和三种不同的锌盐制成，质量比在 0-30 wt% 之间。对称地研究了锌盐和负载水平对 GPE 薄膜的结构、热、机械、机械稳定性和形态性能以及电化学性能的影响。CMC的机械性能和机械稳定性随着醋酸锌、硫酸锌和三氟甲磺酸锌的加入而得到改善，接近电池固态膜的最低要求。通过添加 15 wt% 的醋酸锌 (ZnA)、GPE _A，实现了2.10 mS cm ^-1的最大离子电导率15. 支持的参数表明可能支持CMC 链中Zn ²⁺运动的无定形区域的存在，随着FT-IR 光谱中可移动的 Zn ²⁺载流子数量的增加和离子数量的增加而清楚地显示出来。转移数，DSC 热谱图中熔化焓的降低，以及XRD 图中强度向较低的 2 θ移动。开发的基于 CMC/ZnA 复合物的 GPE 因其高离子电导率、良好的机械性能以及在锌离子电池中长期使用的能力而非常有前途。