Renewable energy sources are considered the cornerstone of achieving a sustainable future for today's modern world. In the current research on energy storage devices, transition metal sulfides are being explored as an excellent electrode material. In this study, the electrochemical performance of Cu₂MnSnS₄ and its micro/nano-structural changes due to variations in the structure directing agents used in its fabrication were investigated. Synthesis of the sulfide sediments was confirmed via standard characterization techniques. The charge-storage electrochemical activity was explored via electrochemical characterization techniques. Furthermore, the electrochemical charge-storage behavior was enhanced by Cu₂MnSnS₄. The best cyclic stabilities obtained were 83%, 87%, and 89% of capacitive retention over 5000 cycles for AA, CA, and OA electrodes in three-electrode arrangements, respectively, while an 80.35% capacitance retention and 97.54% coulombic efficiency were achieved after 21 000 cycles in a fabricated device. The as-fabricated device exhibited an energy density of 27 W h kg⁻¹ and power density of 759 W kg⁻¹ at a current density of 1 A g⁻¹ in the two-electrode setup.

中文翻译：

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Cu2MnSnS4不对称器件的卓越超级电容性能

可再生能源被认为是实现当今现代世界可持续未来的基石。在当前的储能装置研究中，过渡金属硫化物被视为一种极好的电极材料。在这项研究中，研究了Cu ₂ MnSnS ₄的电化学性能及其由于在其制造中使用的结构定向剂的变化而引起的微观/纳米结构变化。硫化物沉积物的合成通过标准表征技术得到证实。通过电化学表征技术探索电荷存储的电化学活性。此外，Cu ₂增强了电化学电荷存储行为MnSnS ₄。对于三电极排列的AA，CA和OA电极，在5000个循环中获得的最佳循环稳定性分别是电容保持率的83％，87％和89％，而电容保持率分别为80.35％和库仑效率为97.54％在制造设备中经过21 000次循环后。所制造的器件在双电极设置中在1 A g ^-1的电流密度下表现出27 W h kg ^-1的能量密度和759 W kg ^-1的功率密度。