supercapacitors

From smartwatches and phones to drones, many modern devices depend on small, rechargeable energy storage systems. But when these products reach the end of their lives, their batteries can be difficult to recycle and often contribute to the growing problem of electronic waste. Researchers have now developed a different approach: a compact supercapacitor designed from […] The post This New Energy S…

Smartwatches, phones, and even some drones rely on lightweight, rechargeable energy storage systems. Once those devices wear out, many end up as electronic waste. Now, researchers reporting in ACS Energy Letters have developed a compact supercapacitor that can be quickly disassembled into reusable components. They used the devices to power a glider's propeller and then took apart one supercapacit…

Pseudocapacitors and redox capacitors are among the most promising candidates for high specific energy and power delivery owing to their rapid charge-discharge capability and excellent cyclic stability. In this work, high-performance, self-supported nickel cobalt tungstate electrodes are fabricated via a facile successive ionic layer adsorption and reaction (SILAR) method with varying nickel-coba…

Development of a novel single-atom-based electrode technology that significantly expands the operating voltage window of aqueous supercapacitors.

Scientific Reports, Published online: 10 July 2026; doi:10.1038/s41598-026-56471-z Post-synthetic modification of UiO-type metal–organic framework with Cu 2+ ions toward fabrication of flexible supercapacitor electrode

Scientific Reports, Published online: 14 June 2026; doi:10.1038/s41598-026-58237-z Energy-controlled supercapacitors based on polybenzidine-oxidant-GO hybrid electrodes with vanadate and dichromate redox chemistry

To transition from a proof of concept to a scalable system, a supercapacitor must deliver beyond just high cyclic stability. This work emphasizes energy density, power density, scalability, and specific capacitance to better address the demands of practical applications while remaining cost effective, employing a simple single-step process that significantly reduces overall cost. Among various el…

Introduction Lignin from paper industry waste + Mn₂C MXene + MWCNTs → a simple layer‑by‑layer carbonized electrode for cleaner energy storage.

We celebrate defects in carbon electrodes—vacancies, heteroatoms, and high-entropy disorder—as the secret to massive capacitance. But an uncomfortable truth is emerging: Are we engineering better supercapacitors, or are we slowly destroying the electron-transport networks that make them work?

The work was carried out by scientists at the MEMS, Microfluidics and Nanoelectronics (MMNE) Lab and published recently in the journal Surfaces and Interfaces

Hydrothermal carbonization can directly convert sloppy stillage into hard or activated carbon.

Abstract Supercapacitors (SCs) are high-performance electrochemical energy storage devices, and their performance hinges on the electrode materials. 2D MXene nanomaterials, with their excellent conductivity, tunable interlayer spacing, and rich surface chemistry, have emerged as highly promising electrode materials for SCs. However, the capacitive performance of intrinsic MXene fails to meet appl…

Abstract The growing demand for efficient energy storage has intensified interest in pseudocapacitive materials, known for their high-power density, rapid charge–discharge capabilities, and tunable physicochemical properties. This review explores the foundational principles and evolution of pseudocapacitive materials, emphasizing recent strategies to improve their electrochemical performance in s…

Enhanced Electrochemical Properties of Biobased Activated Carbon for Supercapacitors Author(s) Zhou, Shengfei; Tai‐Chieh Wan, Charles; Chanut, Nicolas; Brushett, Fikile R; Buehler, Markus JTerms of use Abstract Supercapacitors are great candidates for energy boosting, power, and memory backup. However, they suffer from low-energy density, relatively high cost, and carbon footprint problems due to…

Abstract Asymmetric supercapacitors (ASCs) have attracted widespread attention because of their high energy density, high power density and long cycle life. Nevertheless, the development of anodes and cathodes with complementary potential windows and synchronous energy storage kinetics represents a pivotal challenge. We propose to construct nanochannel-coupled vertically porous CNF/Ti3CNTx and CN…

Scientists are using carbon filaments from mushrooms in supercapacitors, paving the way for a sustainable energy future. The post Mushrooms could be the next big thing in energy storage appeared first on Advanced Science News .

The post MIT engineers create an energy-storing supercapacitor from ancient materials appeared first on MIT Department of Materials Science and Engineering .