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相关概念视频

Ion Exchange01:17

Ion Exchange

620
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
620
Complexation Equilibria: Factors Influencing Stability of Complexes01:09

Complexation Equilibria: Factors Influencing Stability of Complexes

398
In complexation reactions, metal cations are the electron pair acceptors, and the ligands are the electron pair donors. The stability of the metal complexes depends primarily on the complexing ability of the central metal ion and the nature of the ligands. Generally, the complexing ability of the metal ion depends on the size and charge of the ion. As the metal ion size increases, the stability of the metal complexes decreases, provided that the valency of the metal ion and the ligands remain...
398
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

2.1K
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
2.1K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

41.7K
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. 
41.7K

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相关实验视频

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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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功能性聚合物作为人工固体电解质接口,用于稳定金属阳极.

Tuoya Naren1, Ruheng Jiang1, Gui-Chao Kuang1

  • 1State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China.

ChemSusChem
|September 17, 2023
PubMed
概括
此摘要是机器生成的。

聚合物人工固体电解质接口 (ASEI) 通过改善离子传输和防止降解来稳定高度反应性的金属阳极 (LMA). 这项研究探讨了用于更安全,更高效的金属电池 (LMB) 的聚合物ASEI.

关键词:
金属阳极是一种金属阳极.功能性聚合物材料是一种功能性聚合物材料.固态电解质接口接口 固态电解质接口

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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
  • 聚合物科学 聚合物科学

背景情况:

  • 金属阳极 (LMA) 的能量密度很高,但由于的反应性,它们的接口不稳定.
  • 接口的不稳定性导致树突的生长,死,低库伦比克效率,以及金属电池 (LMB) 的安全危险.
  • 人工固体电解质接口 (ASEI) 对于稳定LMA至关重要.

研究的目的:

  • 提供基于聚合物的人工固体电解质接口 (ASEI) 的概述,用于稳定金属阳极 (LMA).
  • 突出聚合物ASEI的设计策略和功能,以应对LMA挑战.
  • 讨论在金属电池 (LMB) 中商业化聚合物ASEI的未来前景和挑战.

主要方法:

  • 对设计ASEI的聚合物材料进行审查和概念演示.
  • 聚合物ASEI功能分析,包括离子运输,副作用抑制,自我愈合和空气稳定性.
  • 讨论LMB中聚合物ASEI的挑战和未来研究方向.

主要成果:

  • 聚合物材料为ASEI提供了多功能结构设计,因为它们的灵活性和功能组.
  • 功能化的聚合物ASEI可以实现统一的离子和单离子运输,抑制副作用反应,增强稳定性.
  • 聚合物ASEI在提高金属阳极的性能和安全方面的已证明潜力.

结论:

  • 聚合物ASEI是克服金属阳极接口不稳定问题的有希望的策略.
  • 定制的聚合物结构可以为稳定的LMA运行提供增强的物理化学和电化学特性.
  • 需要进一步的研究和开发,以将聚合物ASEI技术转化为商业金属电池.