The recent advancements in living standards impose massive pressure on existing energy resources such as fossil fuels. Also, the increasing number of inhabitants arises the need to develop eco-friendly and sustainable energy storage systems. In this regard, a large number of researchers have paid increasing attention to the different methods for sustainable energy like the use of solar cells, LEDs, energy-efficient electronic devices, and supercapacitor technology. Since supercapacitors belong to the class of energy storage systems that provides high capacitive performance and charging-discharging stability during long cycles. They also offer higher power density than batteries and higher energy density than capacitors. Since the selection of electrode material and its electrochemical performance is the most determined parameter for supercapacitor performance. The present review focuses on the different types of aqueous electrolyte based electrode material which is differentiated based on energy storage mechanisms for aqueous supercapacitors. Furthermore, the latest nanocomposites reported have been reviewed and differentiated based on their electrochemical performance for aqueous supercapacitor applications. Their future implications have also been discussed.

最近生活水平的提高对化石燃料等现有能源造成了巨大压力。此外，越来越多的居民需要开发环保和可持续的储能系统。在这方面，大量研究人员越来越关注可持续能源的不同方法，例如使用太阳能电池、LED、节能电子设备和超级电容器技术。由于超级电容器属于在长循环期间提供高电容性能和充放电稳定性的储能系统类别。它们还提供比电池更高的功率密度和比电容器更高的能量密度。由于电极材料的选择及其电化学性能是决定超级电容器性能的最重要参数。本综述重点关注不同类型的水性电解质电极材料，这些电极材料根据水性超级电容器的储能机制进行区分。此外，根据其在水性超级电容器应用中的电化学性能，对最新报道的纳米复合材料进行了审查和区分。还讨论了它们对未来的影响。最新报道的纳米复合材料已根据其在水性超级电容器应用中的电化学性能进行了审查和区分。还讨论了它们对未来的影响。最新报道的纳米复合材料已根据其在水性超级电容器应用中的电化学性能进行了审查和区分。还讨论了它们对未来的影响。