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Uniform zinc electrodeposition directed by interfacial cation reservoir for stable Zn-I 2 battery …
The cations within the reservoir served as an ion-transfer mediator could regulate interfacial Zn 2+ even distribution and lower zinc-ion nucleation energy barrier, consequently promoting the homogeneous Zn electrodeposition.
Improving rechargeable magnesium batteries through dual cation …
Improving rechargeable magnesium batteries through dual ...
Role of solvent-anion charge transfer in oxidative degradation of battery …
Based on computations, the authors show that voltage stability of battery electrolytes is determined not by a single component but by formation of charge transfer complexes between salt anions and ...
Ionic conductivity and ion transport mechanisms of …
In the cation conduction mechanisms discussed above, cations are transported in a static framework. Recently, a "paddle-wheel" mechanism has been proposed to interpret the cation–anion interplay …
Recent Advances in Aqueous Batteries with Nonmetal Cations as …
During the past decades, aqueous rechargeable batteries have been receiving much attention on account of the merits of cost efficiency, high safety, and environmental benignity. Compared to metal-ions (such as Li +, Na +, K +, Mg 2+, Zn 2+, Al 3+ etc.) as charge carriers in aqueous ion batteries, nonmetal charge carriers not only …
Robust battery interphases from dilute fluorinated cations
Introduction Replacement of traditional intercalation anodes such as graphite (372 mA h g −1) or lithium titanium oxide (175 mA h g −1) with Li metal (3860 mA h g −1) can enable high-energy battery cells, 1 providing a solution to the current energy density bottlenecks for batteries. 2–4 However, Li metal anodes are prone to developing …
Non-metallic charge carriers for aqueous batteries
Coupled with a Prussian blue analogue cathode, a reverse dual-ion battery can be designed, in which cations move to the cathode and anions to the anode during discharging (Fig. 1d).
Measurement of transference numbers for lithium ion electrolytes via four different methods, a comparative study …
Research highlights Lithium ion transference numbers (t +) of lithium battery related electrolytes are studied. Four recently used methods for measuring t + are compared. Electrochemical methods yield Li + transference numbers decreasing with concentration and are in agreement with electrostatic theories. In contrast, NMR …
Fast Charge-Transfer Rates in Li-CO2 Batteries with a Coupled …
It is revealed that: i) the type of chalcogenide (Te vs S) significantly affects the electronic and catalytic properties of the catalysts, ii) a coupled cation-electron charge transfer process …
Solid-electrolyte interphase governs zinc ion transfer kinetics in high-rate and stable zinc metal batteries …
Rechargeable zinc metal batteries (ZMBs) have been scrutinized as a promising energy storage technology whose full potential largely relies on stable Zn anodes. Precisely understanding and benchmarking in-cell Zn 2+ charge transfer kinetics is essential for unveiling and optimizing the rate-determining step to achieve practically high …
Quantifying Interfacial Ion Transfer at Operating Potassium-Insertion Battery …
Electrode/electrolyte interfacial ion transfer is a fundamental process occurring during insertion-type redox reactions at battery electrodes. The rate at which ions move into and out of the electrode, as well as at interphase structures, directly impacts the power performance of the battery. However, measuring and quantifying these ion …
Zinc‐Ion Battery Chemistries Enabled by Regulating Electrolyte …
The transfer of zinc cations will cause the movement of primary solvation shell rather than isolated free cations, which is due to the strong interactions and tight bonding between …
Ion Transport and the True Transference Number in …
The performance of conventional lithium ion batteries (LIBs) is limited by their low cation transference number (t +), defined as the fraction of ionic conductivity imparted by the lithium ion rather than its …
Selectivity of Transport Processes in Ion-Exchange Membranes: …
When used in fuel cells, the membranes contact with water vapor only. In this case, the electrically neutral solution in their pore centers should be almost pure water with a low cation concentration. This water should freeze near …
Quantifying Interfacial Ion Transfer at Operating Potassium …
Electrode/electrolyte interfacial ion transfer is a fundamental process occurring during insertion-type redox reactions at battery electrodes. The rate at …
Understanding the charge transfer effects of single atoms for …
Nature Communications - Efficient charge transfer in sulfur electrodes is a crucial challenge for sodium-sulfur batteries. Here, the authors developed a machine …
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(PDF) Fast Charge‐Transfer Rates in Li‐CO 2 Batteries with a …
It is revealed that: i) the type of chalcogenide (Te vs S) significantly affects the electronic and catalytic properties of the catalysts, ii) a coupled cation‐electron …
Selectivity of Transport Processes in Ion-Exchange Membranes: …
Nowadays, ion-exchange membranes have numerous applications in water desalination, electrolysis, chemistry, food, health, energy, environment and other fields. All of these applications require high selectivity of ion transfer, i.e., high membrane permselectivity. ...
Ligand substitution as a strategy to tailor cationic conductivity in all-solid-state batteries | Communications …
Magnesium has a higher volumetric energy density than lithium but it is difficult to facilitate fast ionic conductivity in the solid state for multivalent cations. Here, solid solutions of Mg(BH4 ...
Cation-induced changes in the inner
Cation-induced changes in the inner- and outer-sphere ...
Solid-electrolyte interphase governs zinc ion transfer kinetics in high-rate and stable zinc metal batteries …
The existence of SEIs on the Zn surface has enormous and multifaceted influences on the interfacial behaviors of Zn 2+ cations. 16 Specifically, unlike the direct stripping/plating reactions on bare Zn metal surfaces, the Zn 2+ charge transfer process involves the desolvation and diffusion through the electronically insulating but ionically …
Solvation vs. surface charge transfer: an interfacial chemistry game drives cation …
Electrolyte structure and ion solvation dynamics determine ionic conductivities, and ion (de)solvation processes dominate interfacial chemistry and electrodeposition barriers. We elucidate electrolyte effects facilitating or impeding Li+ diffusion and deposition, and evaluate structural and energetic changes
HKU Mechanical Engineering team unlocks the key to new generation of safe energy-efficient Lithium battery …
Normally, anions move at least four times faster than lithium cations, and thus lithium cation transfer contributes only a small fraction (20%) of the overall ionic current, while excessive anions accumulate at the interface between electrode and electrolyte, causing
Cation replacement method enables high-performance …
The authors present a cation replacement method for low-cost, high-reversibility magnesium and calcium electrolytes, advancing high-energy-density …
Investigations on transfer of water and vanadium ions across Nafion membrane in an operating vanadium redox flow battery …
DOI: 10.1016/J.JPOWSOUR.2009.08.041 Corpus ID: 93556404 Investigations on transfer of water and vanadium ions across Nafion membrane in an operating vanadium redox flow battery @article{Sun2010InvestigationsOT, title={Investigations on transfer of water ...