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Showing 1 to 12 of 12 for “"charge storage mechanism"”.
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Charge Storage Mechanism of Redox Polymers for Energy Storage
… attracted significant interest for energy storage applications due to their high capacity, resource abundance, and environmental friendliness. While most studies focused on electrochemical performance, their redox mechanisms are not well-studied, especially for n-type polymers. The …
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Exploring the Electrode-Electrolyte Interface of Electrically Conductive Layered Metal-Organic Frameworks with Nuclear Magnetic Resonance
Supercapacitors are high-power energy storage devices which are imperative to a green-energy transition. However, their energy density is currently limiting. An understanding of supercapacitor performance at the molecular level is essential to enable design of higher energy-density electrodes to …
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Material engineering for Li-ion capacitors and Li-ion batteries
Electrochemical energy storage devices are fundamental driving force behind personal and industrial electronics. Li-ion batteries became the most prevalent rechargeable energy storage technology in market because of a high energy density. However, a power density (especially charging) of Li-ion …
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Nuclear Magnetic Resonance Studies of Ion Adsorption in Supercapacitor Electrodes
… double-layer capacitors) are high power energy storage devices that store charge by the non-faradaic adsorption of ions at the interface between porous carbon electrodes and an electrolyte solution. The development of new electrode materials and electrolytes with improved performances is an …
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Layer-by-layer assembled carbon nanotube nanostructures for high-power and high-energy lithium storage
… to incorporate positively- and negatively-charged electroactive species in self-assembled electrodes that are binder- and additive- free. This work first studies electrochemical performance of LbLassembled functionalized multiwall carbon nanotube (MWNT) electrodes as positive electrodes in …
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Electrochemical properties of crystalline polymorphs of MnO2 in aluminum and zinc metal batteries
… and climate change. Electrochemical energy storage can enable the integration of renewable energy sources that are inherently intermittent (solar, wind, etc.) into the electric grid, though major advances in cost, cycle life, and safety are necessary to have a global impact on the energy …
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Investigating Layered Electrically Conductive Metal-Organic Frameworks For Supercapacitor Applications
Supercapacitors are high-power energy storage devices that will play an important role in the transition to a low-carbon society. In recent years, layered electrically conductive metal-organic frameworks (MOFs) have emerged as one of the most promising electrode materials for next-generation …
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Nanostructure materials based supercapattery for next generation pacemaker
… in order to regulate heartbeats. Conventional rechargeable batteries are very expensive with limited cycle life and cannot be used in implantable applications due to their limited life cycle. Supercapattery is a new terminology to define the hybrid energy storage system, which combines the high …
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Hierarchical Carbon Structures for Advanced High Areal Capacity Lithium-Ion Battery Electrodes
… (CFP) electrode is proposed with a novel dual charge storage mechanism – it acts both as a host for Li intercalation and as a conductive, porous, and lithiophilic 3D scaffold for Li plating/stripping. The CFP electrode exhibits excellent long-term cycling stability, as evidenced by CEs of over …
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ATOMIC LAYER DEPOSITION OF ALKALI PHOSPHORUS OXYNITRIDE ELECTROLYTES FOR BEYOND-LITHIUM NANOSCALE BATTERIES
Lithium-ion batteries dominate portable energy storage systems today due to their light weight and high performance. However, with the continuing demand for battery capacity projected to outstrip the supply of lithium, alternative energy storage systems based on the more abundant Na and K alkali …
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Molecular-Level Understanding of Ionic & Electronic Charge Storage Mechanisms in Rechargeable Aluminum Batteries Using Sold-State NMR
<p>Rechargeable aluminum-ion batteries are safe and low-cost alternatives to traditional lithium-ion batteries due to the high volumetric capacity (8040 mAh/cm<sup>3</sup>) of aluminum. However, very few electrode materials have shown reversible aluminum ion intercalation. Intercalation …
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Molecular to Macroscopic Understanding of Chloroaluminate Anion Intercalation in Rechargeable Aluminum-Graphite Batteries
… of electrochemically intercalating highly charged Al<sup>3+</sup> cations. Recently, graphite has been demonstrated as a promising positive electrode material in non-aqueous rechargeable aluminum batteries, which store charge when monovalent chloroaluminate molecular anions (<em>e.g.,</em> …