在离子电池中对交联纤维素基固体和凝聚合物电解质的评估
Seyedeh-Arefeh Safavi-Mirmahalleh1, Svetlana N Eliseeva2, Amir Rezvani Moghaddam1
1Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran.
International journal of biological macromolecules
|September 8, 2025
概括
研究人员开发了基于纤维素的聚合物电解质,用于更安全,更具成本效益的离子电池. 一种酸交联的凝聚合物电解质显示出增强的离子导电性和稳定性,证明了其对储能应用的潜力.
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:
- 像纤维素这样的天然聚合物为储能设备提供了可持续的,可生物降解的,经济高效的替代品.
- 传统电池电解质面临的挑战包括泄漏和有限的电化学稳定性.
研究的目的:
- 为离子电池合成和研究基于纤维素的聚合物电解质.
- 评估交叉连接剂 (酸,聚乙烯醇) 对电解质特性的影响.
- 优化凝聚合物电解质,以提高电化学性能.
主要方法:
- 用纤维素和溶液造合成聚合物电解质,形成薄膜.
- 固体和凝聚合物电解质的准备和特征.
- 研究了电化学特性,包括离子导电性和电化学稳定性.
主要成果:
- 交叉连接显著改善了固体和凝聚合物电解质的离子导电性.
- 一个凝聚合物电解质 (GPE) 与1%的酸交联,实现了高离子导电性 (5.58 × 10-4 S cm-1 在室温下).
- 这种优化的GPE表现出了出色的离子转移率 (0.65),电化学稳定性和特定容量 (LiCoO2的212.41mAhg-1).
结论:
- 基于纤维素的凝聚合物电解质,特别是与酸交叉连接时,对离子电池应用有很大的希望.
- 与传统材料相比,开发的电解质提供了更好的安全性,稳定性和性能.
- 这项研究有助于开发可持续和高性能储能解决方案.
更多相关视频
10:53Preparation of Graphene Liquid Cells for the Observation of Lithium-ion Battery Material
Published on: February 5, 2019
9.5K
08:59Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
Published on: November 30, 2022
5.1K
相关概念视频
03:12Batteries and Fuel Cells
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
02:40Chemical Bonds
Atoms participate in a chemical bond formation to acquire a completed valence-shell electron configuration similar to that of the noble gas nearest to it in atomic number. Ionic, covalent, and metallic bonds are some of the important types of chemical bonds. Bond energy and bond length determine the strength of a chemical bond.
Types of Chemical Bonds
An ionic bond is formed due to electrostatic attraction between cations and anions. Often, the ions are formed by the transfer of electrons from...