Herein, we suggest a new approach to an electric double-layer capacitor (EDLC) that is based on a proton-conducting ionic clathrate hydrate (ICH). The ice-like structures of clathrate hydrates, which are comprised of host water molecules and guest ions, make them suitable for applications in EDLC electrolytes, owing to their high proton conductivities and thermal stabilities. The carbon materia...

How Big is a one -Farad capacitor? Would you believe less than a cubic inch? Conventional wisdom and poorly done cartoons notwithstanding, a new capacitor technology is now available that crams incredible capacitance values into very small volumes. As Fig. 1 shows, these are called double -layer capacitors. They are both reasonably priced and available from distributor stock. For instance, a 1....

High energy demand results in comprehensive research of novel materials for sources and storage applications. Covalent organic frameworks (COFs) possess appropriate features such as long-range order, permanent porosity, tunable pore size, ion diffusion pathways to be competitive electrode materials. Herein, we present a deep electrochemical study two COF-aerogels shaped into flexible COF-electr...

This study proposes a method for manufacturing high-performance electrode materials in which controlling the shape of the current collector and electrode material for a Li-ion capacitor (LIC). In particular, the proposed LIC manufacturing method maintains the high voltage of a cell by using a microdome-patterned electrode material, allowing for reversible reactions between the Li-ion and the ac...

In this paper, examples of polarization measurements with a battery, electric double-layer capacitor, and fuel cell are discussed. The analysis the real analytical methodology described. battery section, rate capability is examined in detail origin different properties Charge/discharge tests self-discharge performed capacitor. Detailed measurement conditions data methods introduced section. con...

Nanostructured electrochemical capacitors (ECs) are advantageous for charge and energy storage due to their intrinsically large surface area, which contributes to a large electrostatic/double layer capacitor (Cdl). However, the intrinsically small density of states in nanostructures results in a quantum capacitor (CQ) in series with Cdl which could diminish the total device capacitance value (C...