Proton-conducting non-porous nature of k-carrageenan-based flexible solid electrolytes was prepared by facile solution casting technique. Altering the composition of NH₄COOH, free ion percentage (%) was improved significantly and contributed vital role on the proton conductivity to an utmost level of 8.54 × 10⁻⁴ Scm⁻¹. Especially, increasing the composition of protonic carrier, electrochemical stability window was tuned tremendously and topmost value of 6.3 V was captured for the 0.4 (M wt%) NH₄COOH added electrolyte. Also, interfacial adhesion energy of the electrolytes was enhanced to the maximum level of 96.27 Jm⁻², inferred from contact angle measurements. The obtained significant electrochemical performance of k-carrageenan-based samples is an excellent substitute direction towards the cost-effective and eco-friendly wearable electrical applications.

通过方便的溶液流延技术制备了角叉菜胶基柔性固体电解质的质子传导无孔性质。通过改变NH ₄ COOH的组成，自由离子百分率（％）显着提高，并且对质子传导性的重要作用达到最大水平，为8.54×10 ^-4  Scm ^-1。特别地，增加了质子载体的组成，极大地调节了电化学稳定性窗口，并且对于添加了0.4（Mwt％）的NH ₄ COOH的电解质，其捕获的最高值为6.3V。而且，电解质的界面粘合能提高到最大水平96.27 Jm ^-2由接触角测量得出。获得的基于角叉菜胶的样品具有明显的电化学性能，是朝着具有成本效益和环保的可穿戴电气应用的极好的替代方向。