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相关概念视频

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 Crystal Structures02:42

Ionic Crystal Structures

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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...
14.1K
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

23.7K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
23.7K

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相关实验视频

Updated: Jun 4, 2025

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

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所有固态化物电池的电极.

Atsushi Inoishi1,2, Naoko Setoguchi1, Megumi Motoyama1

  • 1Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga 816-8580, Japan. inoishi@cm.kyushu-u.ac.jp.

Chemical communications (Cambridge, England)
|January 2, 2025
PubMed
概括

三化物 (MnF3) 作为固态化物电池的电极材料具有前景,通过可逆脱和化过程显示出高达535 mA h g-1的初始放电能力.

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:

  • 全固态化物电池提供了更高的安全性和能量密度.
  • 开发新的电极材料对于提高电池性能至关重要.
  • 化合物因其在电化学应用中的潜力而受到探索.

研究的目的:

  • 为了评估三化 (MnF3) 作为全固态化电池的阴极材料.
  • 为了研究MnF3在充放电周期中的电化学行为.
  • 为了确认含的化和除化过程的可逆性.

主要方法:

  • 作为电极材料的MnF3的电化学测试.
  • 电荷放电测量以评估容量和循环稳定性.
  • 分析以确认电池运行期间的氧化状态变化.

主要成果:

  • MnF3 的初始放电容量为 535 mA h g-1.
  • 物种经历了可逆的减少和氧化.
  • 金属被成功地和可逆地化和除化.

结论:

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  • MnF3是所有固态化物电池的可行电极材料.
  • 观察到的容量归因于可逆化物转化反应.
  • 进一步的研究可以优化基于MnF3的电池性能.