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Related Concept Videos

Ionic Crystal Structures02:42

Ionic Crystal Structures

20.3K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
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Metallic Solids02:37

Metallic Solids

21.3K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
21.3K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

53.7K
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. 
53.7K
Ionic Association01:28

Ionic Association

166
The ionic association is the association of oppositely charged ions in an electrolyte solution to form ion pairs. Bjerrum defined ion pairs as two oppositely charged ions whose electrostatic attraction exceeds the thermal energy of the system, typically expressed as 2kT. Electrostatic attraction depends on ionic charge, separation distance, and the dielectric constant of the medium. Thermal energy, represented by kT, reflects the tendency of ions to move independently due to molecular motion.
166
Electron Configuration of Multielectron Atoms03:26

Electron Configuration of Multielectron Atoms

67.0K
The alkali metal sodium (atomic number 11) has one more electron than the neon atom. This electron must go into the lowest-energy subshell available, the 3s orbital, giving a 1s22s22p63s1 configuration. The electrons occupying the outermost shell orbital(s) (highest value of n) are called valence electrons, and those occupying the inner shell orbitals are called core electrons. Since the core electron shells correspond to noble gas electron configurations, we can abbreviate electron...
67.0K
Structure and Nomenclature of Thiols and Sulfides02:17

Structure and Nomenclature of Thiols and Sulfides

5.9K
Thiols and sulfides are sulfur analogs of alcohols and ethers, respectively, where the sulfur atom takes the place of the oxygen atom. Thus, thiols are generally represented as RSH, where R is an alkyl substituent and —SH is the functional group. On the other hand, in sulfides, the central sulfur atom is bonded to two hydrocarbon groups on either side. Depending upon the type of group, sulfides can be either symmetrical or asymmetrical. Both thiols and sulfides display a bent geometry,...
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Updated: Mar 22, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
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From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

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A solid lithium superionic conductor Li11AlP2S12 with a thio-LISICON analogous structure.

Pengfei Zhou1, Jianbin Wang, Fangyi Cheng

  • 1Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China. fujunli@nankai.edu.cn chenabc@nankai.edu.cn.

Chemical Communications (Cambridge, England)
|April 13, 2016
PubMed
Summary

A novel solid lithium superionic conductor, Li11AlP2S12, was synthesized. This material exhibits excellent ionic conductivity and a wide electrochemical window, making it promising for solid lithium-ion batteries.

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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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Area of Science:

  • Materials Science
  • Electrochemistry
  • Solid-State Chemistry

Background:

  • Solid lithium ion batteries require efficient solid electrolytes for enhanced safety and performance.
  • Superionic conductors are crucial for facilitating rapid ion transport in battery systems.

Purpose of the Study:

  • To synthesize and characterize a novel solid lithium superionic conductor with a thio-LISICON analogous structure.
  • To evaluate the ionic conductivity, activation energy, and electrochemical stability of the synthesized material for potential battery applications.

Main Methods:

  • Solid-state synthesis via sintering at 500 °C to produce Li11AlP2S12 (LAlPS500).
  • Electrochemical characterization including ionic conductivity measurements at 25 °C and electrochemical voltage window determination.
  • Analysis of activation energy (Ea) for lithium ion conduction.

Main Results:

  • Successful synthesis of pure Li11AlP2S12 with a thio-LISICON analogous structure.
  • Achieved ionic conductivity of 8.02 × 10(-4) S cm(-1) at 25 °C.
  • Observed low activation energy (Ea) of 25.4 kJ mol(-1) and an electrochemical voltage window > 5.0 V (vs. Li(+)/Li).

Conclusions:

  • The synthesized Li11AlP2S12 (LAlPS500) is a highly efficient solid lithium ionic conductor.
  • The material's properties suggest significant potential for application in next-generation solid lithium-ion batteries.
  • Facilitated lithium ion conduction in this material opens avenues for improved battery technology.