环境稳定和弹性糖凝电解质用于灵活的固态超级电容器
Byoung Soo Kim1,2, Yu-Heng Deng1, Jae Ho Kim3
1Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States.
ACS applied materials & interfaces
|December 3, 2025
概括
这项研究介绍了一种耐用的糖凝电解质,用于柔性固态超级电容器. 它在极端温度和湿度下保持性能,使可靠的可穿戴电子产品成为可能.
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:
- 灵活的固态超级电容器提供了希望,但由于蒸发和结等环境因素而面临限制.
- 现有的水凝电解质在恶劣条件下难以耐用,限制了实际应用.
研究的目的:
- 开发一种灵活的糖凝电解质,具有增强的抗干燥和抗性能,以实现强大的超级电容性能.
- 研究新型电解质在各种环境压力下的稳定性和导电性.
- 为了证明电解质在可穿戴电子产品的纤维固态超级电容器中的实际应用.
主要方法:
- 在可伸缩的水凝矩阵中加入环保的NaCl和湿透糖醇.
- 测试电解质水化保留,电导度稳定性在温度 (-20至60°C) 和低压 (~2.4kPa) 的测试.
- 使用碳纳米管线组装纤维固态超级电容器,并评估其性能和稳定性.
主要成果:
- 糖凝电解质保持了180天的水分,在极端条件下显示出稳定的导电性.
- 纤维超级电容器在恶劣环境下30天后,达到148F·g-1的重力计电容,并保持超过86%的电容.
- 超级电容器通过在面膜上启动热诱导的消毒功能来证明其实用性.
结论:
- 开发的糖凝电解质在具有挑战性的环境条件下提供了特殊的耐用性和稳定的性能.
- 这种多功能电解质是为可穿戴电子设备提供动力的可持续解决方案.
- 整合到面罩中突出了自动供电,功能性可穿戴系统的潜力.
相关概念视频
Capacitor With A Dielectric
4.8K
Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
4.8K
Electrolyte and Nonelectrolyte Solutions
70.9K
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
70.9K
Energy Stored in Capacitors
1.0K
A parallel plate capacitor, when connected to a battery, develops a potential difference across its plates. This potential difference is key to the operation of the capacitor, as it determines how much electrical energy the capacitor can store.
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
1.0K
Energy Stored in a Capacitor
4.5K
When an archer pulls the string in a bow, he saves the work done in the form of elastic potential energy. When he releases the string, the potential energy is released as kinetic energy of the arrow. A capacitor works on the same principle in which the work done is saved as electric potential energy. The potential energy (UC) could be calculated by measuring the work done (W) to charge the capacitor.
4.5K


