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相关概念视频

Ion Exchange01:17

Ion Exchange

594
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...
594

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相关实验视频

Updated: Jul 9, 2025

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
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固体聚合物电解质用多孔聚烯分离器加强,用于全固体超级电容器.

Weidong Liu1,2, Zhiyun Li1,2, Fang Pan1,2

  • 1College of Automotive Engineering, Jilin University Changchun 130025 China wdliu@jlu.edu.cn lizhiyun@jlu.edu.cn panfang20@mails.jlu.edu.cn qszhang@jlu.edu.cn +86 15843102088.

RSC advances
|November 29, 2023
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概括

这项研究开发了一种新型的固体聚合物电解质复合膜,通过透离子液体到聚烯酸分离器中. 这种材料实现了高级全固态超级电容器的高离子导电性和机械强度.

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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:

  • 固体聚合物电解质 (SPEs) 在平衡离子导电性和机械强度方面面临着挑战.
  • 将离子液体 (IL) 纳入高性能超级电容器受到商业聚烯烯分离器透性差的阻碍.

研究的目的:

  • 开发一种具有增强离子导电性和机械强度的新型SPE复合膜.
  • 为了克服IL和聚烯分离器之间的低湿度问题,用于集成应用.

主要方法:

  • 使用聚乙烯氧化物 (PEO),盐和不同比例的ILs,均入商业聚烯烯分离器,创建了一个新的SPE.
  • 复合膜的特点是离子导电性,机械性能和界面电阻.

主要成果:

  • 70%重量IL填充的复合膜 (PLI(70) @PP) 显示出高离子导电性 (2.9 × 10-3 S cm-1) 和优异的机械强度 (128 MPa).
  • 使用PLI(70)@PP的全固态超级电容器实现了158 Fg-1的特定电容,具有稳定的循环性能.
  • 开发的方法适用于大量的卷对卷加工.

结论:

  • 开发的填充IL的SPE复合膜为高性能全固态超级电容器提供了一个有前途的解决方案.
  • 这种方法解决了将IL与商业分离器集成的关键局限性,使强大的能量存储设备成为可能.