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相关概念视频

Formation of Complex Ions03:45

Formation of Complex Ions

23.8K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
23.8K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

41.8K
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. 
41.8K
Voltaic/Galvanic Cells02:47

Voltaic/Galvanic Cells

57.8K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
57.8K
Preparation and Reactions of Sulfides02:26

Preparation and Reactions of Sulfides

4.9K
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
4.9K
Electrodeposition01:08

Electrodeposition

680
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
680

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相关实验视频

Updated: Jul 26, 2025

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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硫化物固体电解质和室温液体阳极之间的稳定接口

Jian Peng1,2,3,4, Dengxu Wu1,2,3,4, Zhiwen Jiang1,2

  • 1Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang 213300, Jiangsu, People's Republic of China.

ACS nano
|June 23, 2023
PubMed
概括
此摘要是机器生成的。

研究人员开发了固体电解质 (SE) 的保护层,以提高电池的稳定性. 这一突破使固态电池的稳定循环时间超过1000小时,提高了安全性和性能.

关键词:
对于PEO来说,这是一个很好的选择.有机液体电极 -BP-DME固体 - 液体接口接口硫化物是固体电解质的电解质.β-Li3PS4 / S4 / S4 / S4 / S4 / S4 / S4 / S4 / S4 / S4 / S4 / S4 / S4 / S5 / S6 / S7 / S8 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9 / S9

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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
  • 固态电池 固态电池是什么

背景情况:

  • 硫化物固体电解质 (SE) 具有高的离子导电性和机械延展性,使其成为固态电池的前景.
  • 一个主要的挑战是SE和电极之间的化学/电化学稳定性差导致的高接口阻抗.
  • 接口稳定性对于硫化物固态电池的性能和商业化至关重要.

研究的目的:

  • 解决使用硫化物电解质的固态电池界面不稳定的关键问题.
  • 开发有效的接口保护层,以稳定运行硫化物固体电解质和液态阳极的电池.
  • 通过减轻界面副作用来实现长期稳定的循环性能.

主要方法:

  • 研究了电池组装和循环过程中电极/硫化物SE接口的形成和演变.
  • 在硫化物SE和以太基液阳极之间应用了兼容的接口保护层,包括聚乙烯氧化物 (PEO) 和β-Li3PS4/S.
  • 评估了组装的固态电池的长期循环稳定性.

主要成果:

  • 在硫化物SE和液阳极之间成功形成了兼容的接口保护层 (PEO和β-Li3PS4/S).
  • 实现了超过1000小时的长期稳定循环性能.
  • 证明了固体-液体界面的稳定性,有效地解决了界面侧面反应的问题.

结论:

  • 开发的接口保护策略显著提高了硫化SE和液阳极之间的接口化学/电化学稳定性.
  • 这种方法使固态电池能够安全稳定长周期运行,克服了商业化的一个关键障碍.
  • 这些发现为高性能硫化物固态电池的实际应用铺平了道路.