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Related Concept Videos

Types of Reversible Electrodes01:24

Types of Reversible Electrodes

For electrode reversibility to be maintained, all the reactants and products involved in the half-reaction must be present at the electrode. There are several types of reversible electrodes (half-cells).In metal-metal-ion electrodes, a metal balances electrochemically with a solution of its own ions. Examples are Cu2+|Cu and Zn2+|Zn. Metals that react with the solvent, like group 1 and most group 2 metals, which react with water, and zinc, which reacts with aqueous acidic solutions, cannot be...
Electrochemical Systems01:24

Electrochemical Systems

Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...
Electrolyte and Nonelectrolyte Solutions02:21

Electrolyte and Nonelectrolyte Solutions

Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
Ionic Strength: Effects on Chemical Equilibria01:19

Ionic Strength: Effects on Chemical Equilibria

The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary cation—the calcium...
The Electrical Double Layer01:30

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
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A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...

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Updated: Jun 11, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
05:33

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

Solvent-Type Salt with Dynamic Solvation Reconfiguration Enables Fast-Charging Lithium Metal Batteries.

Wenran Wang1,2, Lichang Ji1, Feiyu Luo1,2

  • 1State Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.

ACS Applied Materials & Interfaces
|June 10, 2026
PubMed
Summary
This summary is machine-generated.

A novel lithium organofluorinated aluminate salt (LiFA) enables dynamic Li+ solvation control for faster charging in lithium metal batteries (LMBs). This molecular engineering accelerates ion transfer and stabilizes interfaces, crucial for high-performance LMBs.

Keywords:
charge-transfer kineticsfast-charginglithium metal batteriessolvation structuresolvent-type salt

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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
10:03

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

Area of Science:

  • Electrochemistry
  • Materials Science
  • Battery Technology

Background:

  • Lithium-ion solvation structure is critical for charge transfer and interfacial chemistry in lithium metal batteries (LMBs).
  • Fast charging in LMBs is limited by sluggish Li+ desolvation and unstable interphases.
  • Current methods for modulating solvation are challenged by complex Li+-anion and solvent interactions.

Purpose of the Study:

  • To design and investigate a novel "solvent-type" lithium salt for dynamic solvation regulation in LMBs.
  • To enhance Li+ desolvation kinetics and interfacial stability under fast-charging conditions.
  • To explore a new electrolyte strategy for developing high-performance and durable LMBs.

Main Methods:

  • Molecular engineering of a lithium organofluorinated aluminate salt (LiFA) with a polyether chain.
  • Experimental characterization of the salt's properties and performance.
  • Molecular dynamics (MD) simulations to analyze Li+ solvation structures and ion pair dynamics.

Main Results:

  • The LiFA salt effectively encapsulates Li+ and promotes dissociation through its unique structure.
  • Dynamic reconfiguration of Li+ solvation structures was observed, balancing contact and solvent-separated ion pairs.
  • Accelerated charge transfer kinetics and enhanced interfacial stability were achieved.
  • The "solvent-type" salt strategy demonstrated significant improvements in desolvation kinetics and interfacial stability.

Conclusions:

  • The molecularly engineered LiFA salt provides a dynamic solvation regulation approach for LMB electrolytes.
  • This strategy effectively addresses the challenges of Li+ desolvation and interfacial stability during fast charging.
  • The findings offer a promising direction for electrolyte discovery to enable fast-charging and durable lithium metal batteries.