Article
Thermodynamics
Ya-lu Fu, Biao Zhang, Xun Zhu, Ding-ding Ye, Pang-Chieh Sui, Ned Djilali, Qiang Liao
Summary: In this study, pore-scale Lattice Boltzmann models were developed to investigate the air-breathing cathode of membraneless microfluidic fuel cells. The results indicated that the microstructure of the gas diffusion layer played a crucial role in oxygen transport and reaction, while the electrolyte flow rate showed minimal impacts.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
Alonso Moreno-Zuria, Abraham Ulises Chavez-Ramirez, Mohamed Mohamedi
Summary: A 3-D model is established to understand the behavior of microfluidic channels, and the results show a good agreement between experiments and simulations. By reducing the gap between the anode and the cathode, the power output and fuel utilization are improved. Additionally, a proof of concept is demonstrated with a stack of three microfluidic channels, showing potential for low power electronic applications.
JOURNAL OF POWER SOURCES
(2022)
Review
Energy & Fuels
Muhammad Tanveer, Eun Su Lim, Kwang-Yong Kim
Summary: This review article focuses on the development of membraneless microfluidic fuel cells, highlighting the microchannel geometry and electrode architecture. It discusses the impact of mixing and depletion regions on performance, as well as the enhancement of mass transfer through effective design of channels and electrodes.
Review
Energy & Fuels
Muhammad Tanveer, Kwang-Yong Kim
Summary: Membraneless microfluidic fuel cells (MMFCs) are being extensively studied as an alternative to batteries and conventional membrane fuel cells due to their simple functioning and lower manufacturing cost. This review article summarizes different flow configurations of MMFCs reported between 2002 and 2020, focusing on how they improve power density output by reducing or modifying diffusive mixing and depletion zones. Opportunities for research and challenges in improving MMFC performance are also discussed.
Article
Chemistry, Physical
Xun Zhu, Yuan Zhou, Ding-Ding Ye, Rong Chen, Tong Zhang, Qiang Liao
Summary: A novel air-breathing microfluidic fuel cell with discrete-holes film fueling anode was developed in this study, introducing the concept of gas film cooling to enhance fuel transfer efficiency. The visualization and verification of annular film flow based on film fueling were conducted using fluorescence microscopy under various flow conditions. The research results provide valuable insights for promoting the practical application of microfluidic fuel cells.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Ji-Hyun Oh, Muhammad Tanveer, Kwang-Yong Kim
Summary: A novel double-bridge shape was proposed for a membraneless microfluidic fuel cell, leading to improved electrochemical performance. Parameter studies showed that adjusting different channel parameters could optimize power density and enhance energy conversion efficiency in the fuel cell.
Article
Energy & Fuels
Muhammad Tanveer, Kwang-Yong Kim
Summary: A novel flow channel configuration of a membraneless microfluidic fuel cell (MMFC) with porous flow-through electrodes was numerically investigated, showing that a hollow structure in the central flow channel coupled with porous electrodes performed the best in terms of peak power density.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Lanka Tata Rao, Satish Kumar Dubey, Arshad Javed, Sanket Goel
Summary: Laser-induced graphene (LIG) is a three dimensional porous material with excellent properties, and in this study, a low-cost microfluidic fuel cell with LIG electrodes was proposed. By optimizing parameters, the performance of the fuel cell was enhanced.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Energy & Fuels
Hao-Nan Wang, Xun Zhu, Rong Chen, Yang Yang, Ding-Ding Ye, Qiang Liao
Summary: A two-dimensional two-phase model was developed for designing and operating microfluidic fuel cells, providing a deep understanding of the mass transport mechanism. The results show that by shortening the width of the electrolyte channel, the transport of fuel and protons can be enhanced, leading to an increase in power density.
Article
Energy & Fuels
Hao-Nan Wang, Xun Zhu, Rong Chen, Yang Yang, Ding-Ding Ye, Qiang Liao
Summary: Microfluidic fuel cells with liquid electrolyte stream offer enhanced flexibility compared to conventional polymer electrolyte membrane. A two-dimensional two-phase model can improve electrochemical performance and simplify operation, leading to increased fuel and proton transport and elevated power density.
Article
Electrochemistry
Deoashish Panjiara, Hiralal Pramanik
Summary: In this study, Pd-Pt (16:4)/C catalyst showed the best performance, with a 1.45 times increase in power density when the temperature was raised from 35 degrees C to 75 degrees C. The maximum open circuit voltage was 0.78 V and the maximum power density was 4.03 mW/cm(2) at a current density of 10.47 mA/cm(2) at 75 degrees C. The cyclic voltammetry (CV) results supported the single cell performance under various operating parameters.
JOURNAL OF ELECTROCHEMICAL SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Nesrine Chaabene, Kieu Ngo, Mireille Turmine, Vincent Vivier
Summary: The objective of this work is to develop a membraneless microfluidic redox flow battery (RFB) using C(2)mimTFSI as support electrolyte with Quinone (Q) as negolyte and iron chloride (FeCl2) as posolyte. The electrochemical properties and performance of the microbattery were characterized through polarization curve and cyclic voltammetry. The proof-of-concept of the system showed an open circuit potential of 0.6 V and a current density ranging from 0.3 to 0.65 mA.cm(-2) for total flow rates of 10 to 20 mu L.min(-1). A maximum power of 40 mu Wcm (2) was obtained with this microbattery.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Biswajit Samir De, Joshua Cunningham, Neeraj Khare, Jing-Li Luo, Anastasia Elias, Suddhasatwa Basu
Summary: The study demonstrates the tandem operation of a membraneless, two-phase flow microfluidic electrolysis cell and fuel cell, which is a step towards developing an independent micropower source. By controlling the flow rate of electrolyte, gas product mixing and crossover can be avoided. The tandem operation of mu EC-mu FC in acidic and alkaline electrolytes shows stable and efficient characteristics.
Article
Green & Sustainable Science & Technology
Li Li, Lei Ling, Yajun Xie, Shuai Shan, Shaoyi Bei, Keqing Zheng, Qiang Xu
Summary: Counter-flow microfluidic fuel cell faces problems of non-uniform reaction rate distribution and poor electrode contribution. This study introduces a novel trapezoidal electrode design to improve its performance. Numerical analyses show that the isosceles trapezoidal electrode performs better than rectangular electrodes even at lower flow rates. The improved performance is attributed to the enlarged active region, reduced ionic resistance, and distinctive fluid distribution. Further optimization studies suggest that the isosceles trapezoidal design is preferred. Overall, the trapezoidal electrode shows promise for counter-flow microfluidic fuel cells and warrants further development.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Energy & Fuels
Ji-Hyun Oh, Tien-Dung Vuong, Kwang-Yong Kim
Summary: This work conducted a design optimization study to improve the performance of a membraneless microfluidic fuel cell with a double-bridge cross-section of the flow channel. The governing equations were solved numerically to analyze the electrochemical phenomena and evaluate the performance of the fuel cells. Optimization was performed using a genetic algorithm combined with a surrogate model to maximize the peak power density. The optimal design showed a 57.6% increase in peak power density compared to the reference design.
Article
Energy & Fuels
N. Ibrahim-Rassoul, E-K Si-Ahmed, A. Serir, A. Kessi, J. Legrand, N. Djilali
Article
Chemistry, Physical
Hao-Nan Wang, Xun Zhu, Biao Zhang, Ding-Ding Ye, Rong Chen, Qiang Liao, Pang-Chieh Sui, Ned Djilali
JOURNAL OF POWER SOURCES
(2019)
Article
Chemistry, Physical
Ali Malekian, Sina Salari, Juergen Stumper, Ned Djilali, Majid Bahrami
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Ali Malekian, Sina Salari, Mickey Tam, Ned Djilali, Majid Bahrami
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Ali Malekian, Sina Salari, Mickey Tam, Kevin Oldknow, Ned Djilali, Majid Bahrami
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Majid Soleimani Nia, Peter Oshkai, Ned Djilali
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Review
Green & Sustainable Science & Technology
Sandro Nizetic, Nedjib Djilali, Agis Papadopoulos, Joel J. P. C. Rodrigues
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Chemistry, Physical
Min Li, Kangjun Duan, Ned Djilali, Pang-Chieh Sui
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Mechanics
Li Jiang, Mohammad Rahnama, Biao Zhang, Xun Zhu, Pang-Chieh Sui, Ding-Ding Ye, Ned Djilali
Article
Green & Sustainable Science & Technology
Adriano Vinca, Simon Parkinson, Keywan Riahi, Edward Byers, Afreen Siddiqi, Abubakr Muhammad, Ansir Ilyas, Nithiyanandam Yogeswaran, Barbara Willaarts, Piotr Magnuszewski, Muhammad Awais, Andrew Rowe, Ned Djilali
Summary: The study highlights the water stress and energy insecurity in the Indus river basin in South Asia, emphasizing the importance of transboundary cooperation for more cost-effective and environmentally friendly development. By collaborating on water resources, electricity, and food production, the countries in the region could lower costs, reduce soil pollution, and mitigate water scarcity issues.
NATURE SUSTAINABILITY
(2021)
Article
Energy & Fuels
Shuaibin Wan, Xiongwei Liang, Haoran Jiang, Jing Sun, Ned Djilali, Tianshou Zhao
Summary: This study develops a novel framework that combines machine learning and genetic algorithm to optimize electrode structures for RFBs. By generating a custom dataset and utilizing machine learning models and genetic algorithm, hundreds of promising electrode structures with superior performance were successfully screened.
Review
Environmental Sciences
Adriano Vinca, Keywan Riahi, Andrew M. Rowe, Ned Djilali
Summary: Approaches that integrate feedback between climate, land, energy and water have advanced significantly, but many nexus analyses overlook important inter-linkages. This review focuses on model accessibility, usability, and further model development opportunities, exploring where and why some nexus interactions are most relevant at different scales.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Engineering, Mechanical
Orhan Atabay, Ned Djilali, Curran Crawford
Summary: This study examines the long-term energy use implications of electrification, automation, and sharing of road vehicles in British Columbia, Canada. It analyzes energy use from 1990 to 2016 and presents hypothetical scenarios incorporating various effects of vehicle electrification, sharing, and automation. The study compares transportation energy use projections to those of the Canadian Energy Regulator (CER) and finds higher energy savings in the scenarios that consider vehicle electrification. Combining vehicle electrification and automation leads to decreased energy use in all scenarios, surpassing the CER's projections. The inclusion of other technology disruptions and the effects of pandemics further reduce transportation demand and provide additional energy savings.
Article
Chemistry, Physical
Hao-Nan Wang, Xun Zhu, Qiang Liao, Rong Chen, Dingding Ye, P. C. Sui, Ned Djilali
JOURNAL OF POWER SOURCES
(2020)
Review
Electrochemistry
Pang-Chieh Sui, Xun Zhu, Ned Djilali
ELECTROCHEMICAL ENERGY REVIEWS
(2019)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)
