In recent years, iontronic devices have emerged as a ground-breaking field at the intersection of electronics and ionics, promising to bridge the gap between traditional electronic devices and biological systems. Iontronics leverages the transport and control of ions, akin to how electronics manipulate electrons to interface with complex biological processes driven by ionic signaling. This novel approach opens new possibilities in neuromodulation, bioelectronics, and energy storage, where precise management of ion flow is essential. Currently, the ion transport within electrolytes or ionic conductors and their role in processes like electrochemical reactions and biological signaling are studied in ionic systems. Although ion transport is slower than electron transport, ions are crucial due to their ability to trigger complex chemical reactions and biological responses. In contrast, electronics focus on electron manipulation through conductors (e.g., metals and semiconductors) to process information, generate signals or power devices thanks to the fast and efficient movement of electrons. The iontronic systems combine ion transport with electron flow, maintaining the characteristics of electronics, such as logical response, while also leveraging ionic systems for energy storage through chemical reactions. These devices can control ionic currents to interact with biological tissues, simulate neural functions, or store energy in innovative ways. Unlike electronics, which rely primarily on Generally, ECs are ideal for powering iontronic devices due to their ability to store and deliver energy rapidly, a feature essential for controlled ionic transport. The ability to electrosorb biologically active ions is crucial for applications like neuromodulation and bioelectronic interfaces. Rapid energy delivery and high efficiency in energy cycling make them suitable for long-term operations with intermittent power demands, such as neural prosthetics and implantable medical devices. In contrast, traditional electronics face limitations when applied to biological systems. Additionally, electronics generate heat as a by-product, which can be detrimental to delicate biological structures. ECs mitigate this issue by delivering energy without significant heat generation. To date, literature on iontronic devices utilizing ECs is limited. Introducing concepts such as CAPode, G-Cap, and G-CAPode devices have advanced research significantly. These devices operate through mechanisms such as ion sieving, batterylike processes, or intercalation. However, the use of organic electrolytes or low rectification restricts their practical applications.