Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Atomic Nuclei: Types of Nuclear Relaxation01:28

Atomic Nuclei: Types of Nuclear Relaxation

252
Nuclear relaxation restores the equilibrium population imbalance and can occur via spin–lattice or spin–spin mechanisms, which are first-order exponential decay processes.
In spin–lattice or longitudinal relaxation, the excited spins exchange energy with the surrounding lattice as they return to the lower energy level. Among several mechanisms that contribute to spin–lattice relaxation, magnetic dipolar interactions are significant. Here, the excited nucleus transfers...
252
Batteries and Fuel Cells03:12

Batteries and Fuel Cells

27.0K
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...
27.0K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

621
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
621

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Exploring Antiperovskite Cathodes for Na-Ion Batteries.

ChemSusChem·2026
Same author

Phase transitions in rutile-related V<sub>0.92</sub>O<sub>2</sub> synthesized at high pressures and temperatures.

IUCrJ·2025
Same author

Role of Dual-Redox Couples in Antiperovskite Li<sub>2</sub>FeSeO Cathodes.

Chemistry of materials : a publication of the American Chemical Society·2025
Same author

Synthesis, Characterization, Antimicrobial Activity and Molecular Modeling Studies of Novel Indazole-Benzimidazole Hybrids.

Antibiotics (Basel, Switzerland)·2025
Same author

A Highly Conductive Halospinel Cathode for All-Solid-State Batteries.

ACS energy letters·2025
Same author

Mechanical deformations in battery current collectors observed by <i>operando</i> X-ray diffraction on Si/graphite anodes.

Chemical communications (Cambridge, England)·2025
Same journal

Enhancing Conductivity in 3D Organic Electrochemical Transistors with PEDOT-Tetramethacrylate Integration.

ACS materials letters·2026
Same journal

Ultrafast Capture of Per- and Polyfluoroalkyl Substances from Water by Mesoporous Zirconium Metal-Organic Frameworks.

ACS materials letters·2026
Same journal

Reprogramming Porosity: The Synthetic Evolution of Pore Engineering in Metal-Organic Frameworks.

ACS materials letters·2026
Same journal

Biomimetic Protein Materials for Adjuvant-Free Dermal Penetration.

ACS materials letters·2026
Same journal

Discrimination of Hexane Isomers by Temperature Swing Adsorption in a Rigid Aluminum Metal-Organic Framework.

ACS materials letters·2026
Same journal

A Structurally Dynamic Pathogen-Mimicking Biomaterial Is an Efficient Activator of Dendritic Cells.

ACS materials letters·2026
查看所有相关文章

相关实验视频

Updated: Jun 3, 2025

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
11:25

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

15.7K

在电池活性材料中逐步进行结构松.

Amalie Skurtveit1, Erlend Tiberg North1, Heesoo Park1

  • 1Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, PO Box 1033, Blindern 0315 Norway.

ACS materials letters
|January 10, 2025
PubMed
概括
此摘要是机器生成的。

揭示了离子电池放松过程中的结构变化. 操作的X射线衍射和模拟显示离子重组驱动石墨和LiFePO4电极的放松.

更多相关视频

Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway
11:25

Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway

Published on: March 7, 2022

4.5K
Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
07:55

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

Published on: April 17, 2018

12.6K

相关实验视频

Last Updated: Jun 3, 2025

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
11:25

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

15.7K
Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway
11:25

Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway

Published on: March 7, 2022

4.5K
Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
07:55

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

Published on: April 17, 2018

12.6K

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
  • 固态化学 固态化学

背景情况:

  • 了解休息期间的电极材料行为对于电池性能至关重要.
  • 在离子电池放松过程中的结构变化尚未得到充分理解.
  • 之前的研究缺乏足够的时间分辨率的in-situ/operando方法.

研究的目的:

  • 在中断化过程中研究电极材料的结构动力学.
  • 为了阐明石墨和LiFePO4电极中放松过程的原子起源.
  • 突出操作研究对于准确的电池机制分析的重要性.

主要方法:

  • 使用高时间分辨率 (1.24秒) 的同步射线X射线衍射.
  • 对石墨和LiFePO4电极的化循环中断.
  • 放松过程的动态分析与分子动力学模拟相结合.

主要成果:

  • 在石墨电极中确定了三个不同的放松阶段.
  • 确定离子重组成集群驱动石墨放松.
  • 在LiFePO4中观察到较慢的放松,这也归因于离子重组.
  • 证明了操作技术的必要性,以避免误解电池反应机制.

结论:

  • 离子重组是电极放松的一个关键机制.
  • 运行结构研究对于准确了解电池材料的行为至关重要.
  • 这些发现为在休息期间电池电极的动态性质提供了关键的见解.