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相关概念视频

Ionic Crystal Structures02:42

Ionic Crystal Structures

13.9K
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...
13.9K
Batteries and Fuel Cells03:12

Batteries and Fuel Cells

26.7K
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...
26.7K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

16.5K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
16.5K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

39.7K
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. 
39.7K
Electrolysis03:00

Electrolysis

25.7K
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...
25.7K
Alkali Metals03:06

Alkali Metals

18.9K
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
18.9K

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相关实验视频

Updated: May 13, 2025

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

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核心外结构复合体固体电解质使高速全固态电池成为可能.

Yu Feng1, Jingyi Liu1,2, Zhixuan Wei1

  • 1Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), State Key Laboratory of High Pressure and Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P.R. China.

Angewandte Chemie (International ed. in English)
|April 16, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种全固态电池的新型核心外固体电解质,增强离子运输和稳定性,以提高能量存储性能.

关键词:
所有固态电池都是固态电池.核心外结构复合材料固体电解质.机械强度和同质性 机械强度和同质性多个尺度的离子运输.

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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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

Published on: December 20, 2016

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相关实验视频

Last Updated: May 13, 2025

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

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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学
  • 储能 储能 储能 储能 储能 储能

背景情况:

  • 全固态电池 (ASSSB) 对大规模储能充满希望.
  • 在跨多尺度接口的离子传输方面仍然存在挑战,阻碍了电池的性能.

研究的目的:

  • 开发一种复合固体电解质 (SE),可以改善ASSSB中的离子运输和界面稳定性.
  • 在多尺度接口上研究化学机械失效机制.

主要方法:

  • 使用Na3PS4 (硫化物SE) 作为核心和Na2.25Y0.25Zr0.75Cl6 (化物SE) 作为外制造一个核心外结构复合电解质.
  • 复合物SE的氧化稳定性,离子导电性和机械性能的表征.
  • 使用复合SE.使用同质全细胞配置的制造和测试.

主要成果:

  • 核心外复合材料SE具有高氧化稳定性 (4.0 V),离子导电性 (0.44 mS cm-1),以及机械强度 (Young的模量为9.19 GPa).
  • 复合SE有效地减轻了在正极的化学机械诱导的接口接触损失.
  • 同质的全电池实现了在2.0°C下76.4mAhg-1的放电容量,性能优于传统设计.

结论:

  • 核心结构复合电解质为ASSSB中的功能固体电解质提供了一种新的设计策略.
  • 这种设计增强了接口稳定性和电化学性能.
  • 这项研究提供了关于ASSSBs化学机械失败机制的见解.