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相关概念视频

Ion Exchange01:17

Ion Exchange

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 basic...
Theory of Strong Electrolytes01:23

Theory of Strong Electrolytes

The interionic forces of the strong electrolytes depend on the solvent's dielectric constant, which is the ability of a solvent to store electrical energy, based on its polarizability. and the solution's concentration. In high-dielectric solvents and in dilute solutions, weak electrostatic forces keep ions apart. However, in low-dielectric solvents or concentrated solutions, stronger interionic forces may cause ions to pair up as ionic doublets despite being fully ionized. The theory of strong...

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相关实验视频

Updated: Jun 9, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
05:33

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

用于高速固态电池的盐分离固体聚合物电解质.

Xiang Han1, Junjie Lu1, Qiyao Zou2,3

  • 1College of Materials Science and Engineering, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, China.

Advanced materials (Deerfield Beach, Fla.)
|March 31, 2025
PubMed
概括
此摘要是机器生成的。

一种新方法在固体聚合物电解质 (SPEs) 中创建了盐级表面,用于稳定的固态电池 (SSLB). 这提高了离子传输和电池性能,使长期高速运行成为可能.

关键词:
高效率的高效率的性能.金属金属的使用情况盐分离 盐分离 分离固体聚合物电解质的电解质.固态电池 固态电池

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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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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
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Published on: December 20, 2016

相关实验视频

Last Updated: Jun 9, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
05:33

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
10:03

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 12, 2013

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

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:

  • 固态聚合物电解质 (SPEs) 对固态电池 (SSLB) 是有前途的.
  • 在SPEs中界面的不稳定性和缓慢的离子传输限制了SSLB的性能.
  • 现有的方法在高速率应用中难以克服这些界面挑战.

研究的目的:

  • 为SPEs开发一种新的盐分离方法,以提高界面稳定性和离子导电性.
  • 为了提高固态电池的高速率能力和长期循环稳定性.
  • 研究空间盐分级在稳定金属阳极和提高电池性能方面的作用.

主要方法:

  • 引入了一种盐分离方法,利用盐和PVDF在乙烯碳酸盐中的可溶性差异.
  • 制造的SPEs具有空间盐度梯度,产生丰富的表面层.
  • 测试了Li水晶体和固态Li水晶体LiFePO4细胞,以评估界面特性,离子导电性和循环稳定性.

主要成果:

  • 实现了增强的界面和散装离子导电性,减轻了寄生虫反应.
  • 证明了优化的Li+流量,促进球形Li的生长和密集的沉积.
  • 工程 SPEs 能够在 2 mA cm-2 的 Li 基 Li FePO4 细胞中循环 500 小时,在 1.12 A g-1.0 的 Li 基 Li FePO4 细胞中循环 20,000 小时.

结论:

  • 空间盐级工程策略有效地解决了SSLB的SPE中的接口限制.
  • 这种方法为稳定高速SSLB的表面专注工程提供了一个范式转变.
  • 开发的SPE显示出非凡的稳定性和性能,为先进的固态电池技术铺平了道路.