Solvent-free all-solid-state supercapacitors have recently received attention. Despite their highly specific capacitance, they suffer issues related to the solid–solid interface that degrade performance during prolonged cycling. Here, we propose a novel strategy for improving electrode–electrolyte by introducing small amount of polymer into activated carbon-based electrode. An electrode composi...

The demand for flexibility and rechargeability in tandem with high energy density, reliability, safety energy‐storage devices to power wearable electronics has translated significant advances flexible solid‐state Zn–air batteries (FSZABs) technology. FSZABs using self‐supported bifunctional air electrodes are currently one of the most attractive alternatives Li‐ion battery technology next‐gener...

Solid-state batteries (SSBs) based on inorganic solid electrolytes (ISEs) are considered promising candidates for enhancing the energy density and safety of next-generation rechargeable lithium batteries. However, their practical application is frequently hampered by high resistance arising at Li metal anode/ISE interface. Herein, a review conventional solid-state (SSEs) recent research quasi-s...

Covalent organic frameworks (COFs) are emerging materials for electrochemical energy storage. This review summarizes recent advancements in COFs as battery/capacitor electrodes, proton conducting membranes, and ion solid-state electrolytes.

High energy and power densities are the greatest challenge for all-solid-state lithium batteries due to the poor interfacial compatibility between electrodes and electrolytes as well as low lithium ion transfer kinetics in solid materials. Intimate contact at the cathode-solid electrolyte interface and high ionic conductivity of solid electrolyte are crucial to realizing high-performance all-so...

Supercapacitors are in demand for short-term electrical charge and discharge applications. Unlike conventional supercapacitors, solid-state versions have no liquid electrolyte and do not require robust, rigid packaging for containment. Consequently they can be thinner, lighter and more flexible. However, solid-state supercapacitors suffer from lower power density and where new materials have be...

Aqueous suspensions of multi-wall carbon nanotubes (MWNTs) in dilute H2SO4 were sprayed onto both sides of a Nafion membrane and dried to fabricate flexible solid-state supercapacitors. A single cell with MWNT-only electrodes had a capacitance of 57 F g(-1) per electrode at 2 mV s(-1) and 44 F g(-1) at 150 mV s(-1) but with low H(+) mobility. Cells with MWNT + ionomer hybrid electrodes showed h...