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Related Concept Videos

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

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Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
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Electrolyte and Nonelectrolyte Solutions02:21

Electrolyte and Nonelectrolyte Solutions

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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.
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Alkali Metals03:06

Alkali Metals

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Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
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Electrolysis03:00

Electrolysis

26.3K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
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Ionic Bonds00:42

Ionic Bonds

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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...
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Updated: Jun 27, 2025

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
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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 Nonflammable Liquid Electrolytes for Safe Li-Ion Batteries.

Jing Xie1, Yi-Chun Lu1

  • 1Electrochemical Energy and Interfaces Laboratory, Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong SAR, 999077, China.

Advanced Materials (Deerfield Beach, Fla.)
|April 30, 2024
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Summary

Safer lithium-ion batteries (Li-ion) require nonflammable liquid electrolytes to address fire risks. This review explores current designs and safety testing for improved Li-ion battery safety.

Keywords:
liquid electrolytelithium‐ion batteriesnonflammable electrolyte

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Chemical Engineering

Background:

  • Lithium-ion batteries (Li-ion) are crucial for modern electronics.
  • Flammable liquid electrolytes in Li-ion batteries pose significant fire safety risks.
  • Developing nonflammable electrolytes is essential for enhancing battery safety.

Purpose of the Study:

  • To provide a comprehensive understanding of Li-ion battery safety issues.
  • To review state-of-the-art nonflammable liquid electrolyte designs.
  • To inspire novel approaches for safer Li-ion battery development.

Main Methods:

  • Analysis of mechanistic understanding of safety concerns.
  • Discussion of nonflammable electrolyte design strategies at molecular, solvation, and battery compatibility levels.
  • Review of various safety test methods for risk evaluation.

Main Results:

  • Current nonflammable electrolyte designs are categorized by molecular structure, solvation properties, and overall battery compatibility.
  • Diverse safety testing methodologies are available for reliable risk assessment.
  • Insights into the challenges and future directions for nonflammable electrolyte development are presented.

Conclusions:

  • A thorough understanding of safety mechanisms and design principles is key to advancing nonflammable Li-ion electrolytes.
  • Continued research into molecular design, solvation engineering, and compatibility testing will drive the creation of safer batteries.
  • This review serves as a guide for future innovations in nonflammable Li-ion battery technology.