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

What is an Electrochemical Gradient?01:26

What is an Electrochemical Gradient?

128.5K
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient of an ion across the plasma membrane, which is determined by two factors: its chemical and electrical gradients.
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
128.5K
Group Polarization01:01

Group Polarization

39.2K
Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
39.2K
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

26.8K
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:
26.8K
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

76.0K
Dipole Moment of a Molecule
76.0K
Common Ion Effect03:24

Common Ion Effect

47.1K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
47.1K
Precipitation of Ions03:11

Precipitation of Ions

30.3K
Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
30.3K

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

Deep-Learning-Enabled SEM Image Segmentation Coupled with Laser Confocal Raman Microscopy: Elucidating Microstructure and Drug Spatial Distribution in Leuprorelin Acetate Microspheres.

Pharmaceuticals (Basel, Switzerland)·2026
Same author

Fluorobenzene-Mediated Dragging Effect Boosting Bulk/Interfacial Ion Transport Enables -50°C Operation of Long-Life Potassium-Ion Batteries.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Post-marketing safety evaluation of mirogabalin using the JADER database.

Frontiers in pharmacology·2026
Same author

PRRSV-induced glucose-6-phosphate transporter promotes viral replication by suppressing type I interferon transcription.

Microbial pathogenesis·2026
Same author

A latent profile analysis of health behaviors among rural patients with ischemic stroke in China.

Frontiers in public health·2026
Same author

Atypical cutaneous candidiasis mimicking tinea corporis in an otherwise healthy young man: A case report.

Medical mycology case reports·2026
Same journal

Intimate encapsulation of non-planar electrodes via a viscoplastic interlayer.

National science review·2026
Same journal

The emerging Antarctic amplification.

National science review·2026
Same journal

Reconstructing vegetation biomass in the Middle Jurassic Yanliao Biota from insect fossil assemblages.

National science review·2026
Same journal

Industrial electrocatalytic C-C coupling reaction of C<sub>1</sub> liquid molecules for efficient ethanol synthesis.

National science review·2026
Same journal

Intrinsic auxetic piezoelectricity in bulk ferroelectrics.

National science review·2026
Same journal

Electrochemical in-biosensing computing.

National science review·2026
查看所有相关文章

相关实验视频

Updated: Feb 13, 2026

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

9.0K

解码极性梯度使得超高离子导电率成为可能.

Yuqing Chen1,2, Aiping Wang3, Yun Zhao4

  • 1College of Materials Science and Engineering, Hunan Joint International Laboratory of Advanced Materials and Technology of Clean Energy, Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Changsha 410082, China.

National science review
|February 12, 2026
PubMed
概括
此摘要是机器生成的。

本研究介绍了离子电池的极性梯度工程 (PGE),通过减少电解质异质性来提高冷稳定性. 这一突破使得在极低温度下能够稳定运行,为先进的储能解决方案铺平了道路.

关键词:
介电异质性的介电异质性电解质的电解质是一种电解质.同质化溶解结构的同质化.离子电池是一种离子电池.在低温下表现的性能.

更多相关视频

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
10:41

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

Published on: May 22, 2018

39.0K
Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing
10:58

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Published on: March 7, 2018

10.7K

相关实验视频

Last Updated: Feb 13, 2026

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

9.0K
Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
10:41

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

Published on: May 22, 2018

39.0K
Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing
10:58

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Published on: March 7, 2018

10.7K

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:

  • 传统的离子电池电解质在冷温度下由于溶解结构异质性而面临运行不稳定性.
  • 在电解质中不平衡的溶剂极性导致高溶解障碍和增加的界面离子传输阻力.
  • 这限制了电池在极寒环境中的性能和稳定性.

研究的目的:

  • 引入一个极性梯度工程 (PGE) 范式,以解决电解质中的溶剂极性差异.
  • 通过电子调制系统地解决原子尺度上的异质性.
  • 为了使离子电池在极端冷条件下稳定运行.

主要方法:

  • 在碳酸骨架中用硫代替碳,以减少介电异质.
  • 原子级电子调制以实现平衡的Li+协调.
  • 电解质性质的表征,包括介电异质性,溶解的激活能量和低温下的离子导电性.

主要成果:

  • 通过在电解质中用硫代替碳 (Δε = 17.1) 来实现介电异质的83%降低.
  • 同质化溶解加速了溶解动力学 (34.97 kJ·mol-1激活能量),并促进了富含LiF的相间形成.
  • 优化的电解质使液体在-110°C下运行,在-80°C下具有1 mS·cm−1的导电性,在-20°C下可稳定循环运行LiCoO2/Li囊细胞 (81%的保留率超过400个循环).

结论:

  • 极性梯度工程 (PGE) 范式有效地将电解质中的溶解结构同质化.
  • 这导致了内在合的热力学稳定性和加速的界面动力学,用于极端条件的能量存储.
  • 该研究提供了一个通用设计框架和一个原子规模的蓝图,用于开发高性能冷电池.