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Related Concept Videos

Introduction to Electrolytes01:33

Introduction to Electrolytes

10.5K
In humans, electrolytes play a vital role in various physiological processes. Balancing electrolyte levels is essential for normal body functions; their imbalance can be life-threatening. The major electrolytes include sodium, potassium, chloride, calcium, phosphate, and bicarbonate. They are primarily involved in physiological processes, such as nerve signal transmission, membrane trafficking, muscle contraction, buffering body fluids, and balancing water levels in the body.
Role of Sodium
One...
10.5K
Electrolyte and Nonelectrolyte Solutions02:21

Electrolyte and Nonelectrolyte Solutions

63.5K
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.
63.5K
Roles of Electrolytes: Sodium and Potassium01:24

Roles of Electrolytes: Sodium and Potassium

592
Sodium plays a crucial role in maintaining fluid and electrolyte balance and overall bodily homeostasis. Sodium balance is primarily regulated by kidney function, which adjusts sodium elimination to match dietary intake and maintain proper electrolyte levels. Sodium is the most abundant cation in the extracellular fluid (ECF) and is found in salts such as sodium chloride (NaCl) and sodium bicarbonate (NaHCO3). Although cellular plasma membranes are relatively impermeable to sodium, its role in...
592
Ionic Bonds00:42

Ionic Bonds

118.9K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
118.9K
Ionic Strength: Effects on Chemical Equilibria01:19

Ionic Strength: Effects on Chemical Equilibria

1.6K
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...
1.6K
Roles of Electrolytes: Chloride and Bicarbonate01:29

Roles of Electrolytes: Chloride and Bicarbonate

310
Chloride ions contribute to the osmotic pressure gradient distinguishing the intracellular fluid (ICF) from the extracellular fluid (ECF). They counterbalance positively charged ions in the ECF and ensure its electrochemical stability. The renal system's process of chloride absorption and release generally mirrors that of sodium ions.
Conditions such as hypochloremia can arise from insufficient chloride reabsorption by the kidneys, often compounded by extended bouts of diarrhea, vomiting,...
310

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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
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Designing better electrolytes.

Y Shirley Meng1,2, Venkat Srinivasan2,3, Kang Xu3,4

  • 1Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA.

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Designing advanced electrolytes and interphases is crucial for high-energy batteries. These components enable ion transport and stability, overcoming challenges in next-generation energy storage systems.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Emerging battery chemistries offer high energy density but face challenges with complex phase and structural changes.
  • Electrolytes and interphases are critical for battery performance and stability.
  • Electrolytes must balance ion transport, electron insulation, and stability against extreme electrode potentials.

Purpose of the Study:

  • To highlight the importance of electrolytes and interphases in advanced battery technologies.
  • To discuss the multifaceted requirements for electrolytes in high-energy batteries.
  • To explain the role of interphases in ensuring kinetic stability beyond thermodynamic limits.

Main Methods:

  • Review of electrolyte and interphase functions in advanced battery systems.
  • Analysis of electrochemical stability requirements for electrolytes.
  • Discussion of interphase formation mechanisms through sacrificial electrolyte reactions.

Main Results:

  • Electrolytes and interphases are essential for enabling high-energy battery chemistries.
  • Simultaneous ion transport, electron insulation, and electrode stability are key electrolyte criteria.
  • Kinetic stability, achieved via interphases, is vital for electrolytes operating beyond their thermodynamic limits.

Conclusions:

  • Optimizing electrolyte and interphase design is paramount for the success of next-generation batteries.
  • Understanding and controlling interphase formation is critical for enhancing battery safety and performance.
  • Further research into electrolyte-electrode interactions will drive innovation in energy storage.