Tuning the Frequency Response of Fractional-Order Microsupercapacitors

调整分数阶微型超级电容器的频率响应

• 批准号: 2126190
• 负责人: Chunlei Wang
• 金额: $ 37.92万
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2126190&HistoricalAwards=false
• 关键词: Tuning; Frequency; Response; Fractional; Order

Electric double-layer capacitors (EDLC) are a subset of electrochemical capacitors that can store and deliver electrical energy at dc and relatively far-from-dc frequencies with effective capacitance between that of aluminum electrolytic capacitors and secondary batteries. They are mostly employed in conventional energy storage applications as secondary power source, such as microprocessors and solar batteries. They have also been demonstrated as efficient energy devices in oscillators and filters circuits, fractional-order controllers, and fractional-order resonators. However, because of the nature and porous structure of their electrodes and the interfacial electrochemistry of their electrodes/electrolyte phase, many fundamental aspects of their performance metrics are still not well understood, and rational design is practically nonexistent. In particular, EDLCs exhibit a dissipative, resistive-capacitive behavior when operating away from dc with an impedance angle anywhere between -90 and 0 deg. In this project, miniaturized EDLCs based on structured 2D and 3D electrode arrays will be designed and fabricated with the objective of understanding and controlling their non-ideal, fractional-order behavior. We will develop and study the effect of doped electrolytes in order to tune the electric-field-induced ionic transport in the presence of physical obstacles. The expected outcome is a general procedure and design rules to apply in order to fine-tune and control the impedance phase shift of EDLCs and their energy-power performance. Modeling and simulation using mean-field Poisson-Nernst-Plank model will be carried out in order to provide a fundamental understanding of the frequency response of the devices. System-level modeling using fractional-order mathematical tools and equivalent circuit models will also be developed in connection with RC-based circuitry. The controllable fractional-order behavior of the EDLCs will be verified and their frequency-domain application will be demonstrated. This project will contribute to the research, education, and diversity goals of Florida International University.The objectives of this project are to tackle the lack of knowledge on the frequency-domain metrics and performance of factional-order capacitors using both experimental and modeling approaches. We aim to investigate the following: (1) electrode-electrolyte interface specifications and electrolyte parameters that enable the tuning of the electrical characteristics of an EDLC over an extended frequency bandwidth; (2) the electro-kinetic effects taking place in the supporting electrolyte of an EDLC, and how they affect the frequency-domain metrics of the device; (3) modeling using 3D-circuit interconnects and finite-element methods to understand the overall electric characteristics; and (4) the frequency response of the EDLCs and their application in (frequency-domain) filtering and (time-domain) memory applications.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

电动双层电容器（EDLC）是电化电容器的子集，可以在DC处存储和输送电能，并且相对较远的DC频率具有有效的电容，铝电解电容器和二级电池的电容有效。它们主要用于传统的储能应用中，作为二级电源，例如微处理器和太阳能电池。它们还被证明是振荡器和过滤器电路，分数控制器和分数订单谐振器中的有效能量设备。但是，由于电极的性质和多孔结构以及电极/电解质阶段的界面电化学，其性能指标的许多基本方面仍未得到充分了解，并且理性设计实际上是不存在的。特别是，EDLC在远离直流的行动中，在-90和0度之间以阻抗角度运行时表现出耗散性，电阻式的行为。在这个项目中，将设计和制造基于结构化2D和3D电极阵列的小型EDLC，目的是理解和控制其非理想的分数行为。我们将开发和研究掺杂电解质的效果，以便在存在物理障碍物的情况下调整电场诱导的离子传输。预期的结果是适用的一般程序和设计规则，以微调和控制EDLC的阻抗相移及其能源性能。将使用平均泊松泊松型静脉模型进行建模和仿真，以提供对设备频率响应的基本理解。使用分数数学工具和等效电路模型的系统级建模也将与基于RC的电路有关。将验证EDLC的可控分数行为，并将证明其频域应用。该项目将有助于佛罗里达国际大学的研究，教育和多样性目标。该项目的目的是通过使用实验和建模方法来解决有关频域指标的知识和派系订购电容器的性能。我们旨在研究以下内容：（1）电极 - 电解质界面规范和电解质参数，这些参数能够在扩展频率带宽上调整EDLC的电气特性； （2）电动效应发生在EDLC的支撑电解质中，以及它们如何影响设备的频域指标； （3）使用3D电路互连和有限元方法建模以了解总体电特性； （4）EDLC的频率响应及其在（频域）过滤和（时域）内存应用中的应用。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的评估来获得支持的。

项目成果

Sacrificial template method to fabricate highly sensitive porous capacitive pressure sensor for full pulse waveforms detection

• DOI: 10.1117/12.2665344
• 发表时间: 2022-10
• 作者: A. Chowdhury;Borzooye Jafarizadeh;N. Pala;Chunlei Wang

Monitoring and analysis of cardiovascular pulse waveforms using flexible capacitive and piezoresistive pressure sensors and machine learning perspective

• DOI: 10.1016/j.bios.2023.115449
• 发表时间: 2023-06-23
• 期刊: BIOSENSORS & BIOELECTRONICS
• 影响因子: 12.6
• 作者: Chowdhury, Azmal Huda;Jafarizadeh, Borzooye;Wang, Chunlei
• 通讯作者: Wang, Chunlei

Deformed Butler–Volmer Models for Convex Semilogarithmic Current-Overpotential Profiles of Li-ion Batteries

• DOI: 10.1021/acs.jpcc.1c09620
• 发表时间: 2022-01
• 期刊: The Journal of Physical Chemistry C
• 作者: A. Allagui;Hachemi B. Benaoum;Chunlei Wang

Time-Domain and Frequency-Domain Mappings of Voltage-to-Charge and Charge-to-Voltage in Capacitive Devices

• DOI: 10.1109/tcsii.2022.3174965
• 发表时间: 2022-03
• 期刊: IEEE Transactions on Circuits and Systems II: Express Briefs
• 作者: A. Allagui;A. Elwakil;Chunlei Wang

Laser-induced graphene supercapacitors on flex substrates for package-integrated power supply

用于封装集成电源的柔性基板上的激光诱导石墨烯超级电容器

• DOI: 10.1109/3d-peim55914.2023.10052332
• 发表时间: 2023
• 期刊: 2023 Fourth International Symposium on 3D Power Electronics Integration and Manufacturing (3D-PEIM
• 作者: Banerjee, Reshmi;Chowdhury, Azmal Huda;Kumar, Pavar Sai;Wang, Chunlei;Goel, Sanket;Raj, Pulugurtha Markondeya
• 通讯作者: Raj, Pulugurtha Markondeya